Cost of Living in Bangkok

Summary of cost of living in Bangkok, Thailand:

Restaurants
Edit Range
Meal, Inexpensive Restaurant 100.00 ฿ 55.00-200.00
Meal for 2 People, Mid-range Restaurant, Three-course 1,000.00 ฿ 600.00-2,000.00
McMeal at McDonalds (or Equivalent Combo Meal) 200.00 ฿ 150.00-250.00
Domestic Beer (1 pint draught) 80.00 ฿ 50.00-150.00
Imported Beer (12 oz small bottle) 150.00 ฿ 85.00-250.00
Cappuccino (regular) 87.89 ฿ 40.00-160.00
Coke/Pepsi (12 oz small bottle) 21.34 ฿ 15.00-40.54
Water (12 oz small bottle) 9.63 ฿ 7.00-20.00
Markets
Edit
Milk (regular), (1 gallon) 244.40 ฿ 170.34-374.76
Loaf of Fresh White Bread (1 lb) 43.91 ฿ 23.81-90.72
Rice (white), (1 lb) 22.33 ฿ 13.61-44.00
Eggs (regular) (12) 76.63 ฿ 52.00-116.41
Local Cheese (1 lb) 330.47 ฿ 136.08-907.19
Chicken Fillets (1 lb) 42.98 ฿ 27.22-90.72
Beef Round (1 lb) (or Equivalent Back Leg Red Meat) 150.24 ฿ 68.04-317.52
Apples (1 lb) 48.96 ฿ 22.23-79.38
Banana (1 lb) 25.10 ฿ 13.61-45.36
Oranges (1 lb) 35.57 ฿ 15.88-52.16
Tomato (1 lb) 26.63 ฿ 15.80-45.36
Potato (1 lb) 23.41 ฿ 13.61-36.29
Onion (1 lb) 20.43 ฿ 13.15-31.75
Lettuce (1 head) 41.13 ฿ 20.00-60.00
Water (1.5 liter bottle) 17.26 ฿ 10.00-30.00
Bottle of Wine (Mid-Range) 600.00 ฿ 400.00-1,000.00
Domestic Beer (0.5 liter bottle) 63.36 ฿ 47.69-90.00
Imported Beer (12 oz small bottle) 118.42 ฿ 64.00-200.00
Cigarettes 20 Pack (Marlboro) 143.50 ฿ 115.00-165.00
Transportation
Edit
One-way Ticket (Local Transport) 40.00 ฿ 30.00-64.00
Monthly Pass (Regular Price) 1,300.00 ฿ 900.00-3,000.00
Taxi Start (Normal Tariff) 35.00 ฿ 35.00-40.00
Taxi 1 mile (Normal Tariff) 68.40 ฿ 56.33-80.47
Taxi 1hour Waiting (Normal Tariff) 200.00 ฿ 180.00-300.00
Gasoline (1 gallon) 151.89 ฿ 132.49-170.34
Volkswagen Golf 1.4 90 KW Trendline (Or Equivalent New Car) 1,500,000.00 ฿ 950,000.00-2,114,500.00
Toyota Corolla Sedan 1.6l 97kW Comfort (Or Equivalent New Car) 925,026.32 ฿ 879,000.00-1,000,000.00
Utilities (Monthly)
Edit
Basic (Electricity, Heating, Cooling, Water, Garbage) for 915 sq ft Apartment 2,942.84 ฿ 1,700.00-4,722.22
Mobile Phone Monthly Plan with Calls and 10GB+ Data 453.21 ฿ 250.00-700.00
Internet (60 Mbps or More, Unlimited Data, Cable/ADSL) 526.24 ฿ 400.00-800.00
Sports And Leisure
Edit
Fitness Club, Monthly Fee for 1 Adult 1,750.29 ฿ 1,000.00-3,000.00
Tennis Court Rent (1 Hour on Weekend) 364.33 ฿ 250.00-450.68
Cinema, International Release, 1 Seat 250.00 ฿ 200.00-400.00
Childcare
Edit
Preschool (or Kindergarten), Full Day, Private, Monthly for 1 Child 20,489.20 ฿ 10,000.00-38,711.24
International Primary School, Yearly for 1 Child 450,839.66 ฿ 300,000.00-750,000.00
Clothing And Shoes
Edit
1 Pair of Jeans (Levis 501 Or Similar) 1,882.74 ฿ 750.00-3,490.00
1 Summer Dress in a Chain Store (Zara, H&M, ...) 1,183.60 ฿ 500.00-2,000.00
1 Pair of Nike Running Shoes (Mid-Range) 3,390.59 ฿ 2,000.00-5,000.00
1 Pair of Men Leather Business Shoes 3,034.62 ฿ 1,300.00-5,599.00
Rent Per Month
Edit
Apartment (1 bedroom) in City Centre 19,972.22 ฿ 15,000.00-30,000.00
Apartment (1 bedroom) Outside of Centre 10,337.50 ฿ 7,000.00-16,600.00
Apartment (3 bedrooms) in City Centre 58,089.81 ฿ 40,000.00-85,000.00
Apartment (3 bedrooms) Outside of Centre 27,744.86 ฿ 18,000.00-55,000.00
Buy Apartment Price
Edit
Price per Square Feet to Buy Apartment in City Centre 17,539.95 ฿ 13,935.34-28,799.70
Price per Square Feet to Buy Apartment Outside of Centre 8,198.82 ฿ 7,432.18-9,290.23
Salaries And Financing
Edit
Average Monthly Net Salary (After Tax) 23,956.13 ฿
Mortgage Interest Rate in Percentages (%), Yearly, for 20 Years Fixed-Rate 6.10 4.00-7.80

Prices in Bangkok

This city had 2625 entries in the past 12 months by 372 different contributors.
Last update: November 2024
Distribution of Expenses Using Our Statistical Model:
Sign Up for Our Newsletter:
Your Email Address:
  
  
Leave a comment:

Your name: Sign In

Your email address (optional):

Your comment (no HTML):

46 Comments so far
Anonymous on Oct 24, 2024:
Meal in inexpensive restaurant price refers to air conditioned restaurant. A basic meal can be had for far cheaper around 50 to 70 baht almost anywhere in the city
kelvin on Aug 19, 2024:
This information is fairly accurate as of 20/8/2024
Anonymous on Apr 19, 2024:
If A single person estimated monthly costs are 23,086.4฿ (without rent.)
Apartment (1 bedroom) Outside of Centre 10,465.71 ฿

Total expenses per month = 33,552.11 ฿

But!!!!
Average Monthly Net Salary (After Tax) 23,028.37 ฿

Which means total balance = 23,028.37 ฿ - 33,552.11 ฿ = -10,523.74 ฿ every month

How do they lives???
Alex on Apr 14, 2024:
To me, Thailand is the worst country on the planet. A Mecca for all hipsters worldwide. If you appreciate things like prostitution, same-gender relationships, and crazy festivals like Songkran, where random people on the streets try to smear some bad stuff (I don't know what it is) on your face, then this country is definitely for you. However, for normal people like myself, it's the opposite. Oh, and during my stay in Thailand, I didn't see a single male photo in advertisements without full-face heavy makeup...
Anonymous on Apr 06, 2024:
Bangkok's truly one of the best cities to live in Southeast Asia. Despite inflation and rising costs of living in recent years, it's nevertheless still one of the most affordable capitals in ASEAN. Commuting is very much affordable whether by car or public transport and there is plenty of affordable food that are of good value. Housing is varied with many options in and around the city center/downtown area.
max on Mar 07, 2024:
The entire real estate market for tourists or expats is always overpriced, there are resources that collect offers for renting apartments and houses at local prices, such as this one https://rentoplan.com
Anonymous on Feb 15, 2024:
Anyway, both Supperrich brokers would ever offer better rates for cash exchange (USD, EUR, maybe something else, too) than Visa/Mastercard cards. Even in Suvarnabhumi, you can get reasonable rates. Just go to the underground level.
Anonymous on Feb 15, 2024:
I thought this was a common knowledge that cash withdrawals from non-local cards often come to some additional fees just everywhere in the world. And, of course, it would be the matter for only short-term visitors. Do we really talk about them here?
Anyway, for Mastercard holders, there's a workaround: bring yourself along with the passport and the card (the credentials must match) to a Krungsri branch and ask them politely if you can have an over the counter withdrawal for 30,000 baht or more, there won 't be any fees on the Thai side. Staff in some branches may not let you have it, then try another one.
Anonymous on Feb 15, 2024:
And you aren't gonna fuel that Corolla with kindda premium gas or what else someone meant for 40 baht per liter or even more. E20 and E85 would be enough for most of the customers. 36 baht. Check the internet.

Another troll came up with a 2 mio car as an equivalent for the Golf. You're mental. No-one wonders what is the luxury style. People come to the portal to check out the expenses of an ordinary/average lifestyle.
Paul on Feb 15, 2024:
Many of these prices are too high. A Thai meal in an inexpensive restaurant is 40 to 70 baht. A basic apartment (no pool or gym) can be found at 3000 for a studio and 4000 for a one bedroomed place outside the city centre.
Anonymous on Feb 14, 2024:
Transportation prices shown are ridiculously high. The whole point is a comparison, so why people used to the input of max price? Motosai starts from 10 baht. Songteaws and old buses start from 8 baht. A/C buses start from 15 baht. BTS starts from 15 baht. 1km taxi goes for 6.5 baht. Most of the mentioned are regulared officially and you can find the data in two.
Tom on Jan 04, 2024:
numbers are cool, usually I'm paying 50 baht for a coffee (dunkin, mcdonald) up to 100 baht (xxxyyy cool coffee spot in BKK)

the thing is nobody is mentioning that every ATH withdraval costs 220 baht - around 6,5 USD, each time you want to get cash, and usually you can't pay in local convenience store 7-11 with card if it's less than 200 baht (so eg. coffe and a snack is not enough). Some places don't want to even take my Revolut VISA Debit card ;]
Anonymous on Dec 19, 2023:
Troll comments on this site are wild lol.

April 2023 commenter claims he makes $18,000 USD equivalent per month "barely scraping by". Must be an entire house made out of hookers. Wonder how the "wife" feels about that lmao
LP King on Sep 29, 2023:
Anonymous on Mar 27, 2023:
I have an offer of 240k THB per month before tax. Moving in Bangkok with spouse and kid going in 3rd standard. He need to enroll in international school.
Anonymous on May 25, 2023:
I dont think 22k THB fairly represent comfortable standard of living. I personally spend around 150k just for me and my 2 dogs.
Anonymous on Apr 03, 2023:
240k thb would be enough to live in the ghetto per month not recommended.Together my wife and I made 635k thb per month barely scraping by.
Anonymous on Mar 27, 2023:
I have an offer of 240k THB per month before tax. Moving in Bangkok with spouse and kid going in 3rd standard. He need to enroll in international school.

Health Insurance, life insurance, and one round trip per year is additional from above mentioned salary.

Would this salary good enough for family of 3 where looking for decent savings per month.
Anonymous on Mar 23, 2023:
I have the option to work remotely as Senior Java Developer from Thailand (as employee on contract with the local company of my employer based in Bangkok). Net Salary after Tax: 146100 THB monthly (something around 2.0-2.2 mio gross per year).

Can I afford a good standard of living with this salary? Is this a competitive salary for a Senior Deveoper?
Thanks!
James on Feb 28, 2023:
Rent in prime area for a good 1 bedroom apartment 45-60 sqm: 40k-60k.
Rent in prime area for a more budget 1 bedroom apartment 45-60 sqm: 25k to 40k.
Rent in a less prime inner BKK area with good access to metro for a budget small studio apartment 30-40 sqm: 12k to 20k.
Utility: Living alone is about 2k-4k. Family of 3 cost about 5k-10k.
Internet: 600-800 THB.
Phone bill: 600-1,000 THB
Budget restaurant: Usually less than 250 THB per meal. Plenty of selection to choose from.
Mid range restaurant for 2: 1,200-2,000 THB per meal.
Groceries: Milk, meat, fruit and vegetables with comparable quality to Europe would cost about 2 times more in BKK. Lesser quality groceries are still quite expensive.
Transportation: Less than 60 THB one way metro ticket. But mostly goes to only prime area. Bus coverage and bus condition are very poor.
Taxi: Less than 200 THB unless you need to travel more than 15-20 km.
Car price: Generally cost roughly twice as expensive compare to the US. Parts are very expensive too.
Non electronic import goods: Hefty tax and mark up.
Electronics: A bit cheaper compare to Europe and almost as cheap as the US.
Tuition fee for a good international school: Cost about 500k to 1 million THB per year.
Salary: Pre tax mean income for the BKK locals according to Thai government is 14k THB per month. Expats on average earn much higher.
Limo on Nov 15, 2022:
Family with one child 6 month old ( wife doesn’t work)
Rent 27-30k baht for 50 sqm
Eletricity bill 5-6k
Take out food around 700-1000 baht
In restaurants 1000-1200
Cleaner for 3 hrs 600-700
Grocery for a week just a basic not fancy one 4000 baht
Mostly working from home , dont have big spending on transportation its around 1000 1500 baht per months
Hard to find good tomato
Anonymous on Nov 01, 2022:
You are financially broke is why you've lived in Bangkok 20 years.Wifey controls your money.You've taken pay for play to a whole new level.
Anonymous on Aug 02, 2022:
Lived in Bangkok for 20 years.. can't imagine living anywhere else..
Dont listen to all the cry babies below...
Anonymous on Jul 17, 2022:
I cannot ever imagine living in Thailand. Once my flight landed enroute,to another country. Being layed over at the Bangkok airport two hours was enough for me.

I made sure my flights didn't land in Thailand anymore over the years though during my travels abroad.
Jason on Jul 04, 2022:
Whatever you see on a restaurant menu, add 17% service charge plus VAT. How they get away with such a mis-leading pricing system is beyond me. I used to eat out 2-3x each week. Now i will either cook or buy from very local restaurants. The foreign brands, tourist ones i will stay well away from. Absolute rip off prices then some have the cheek to add 17% whilst paying their workers 500thb a day.
CATHERINE on May 11, 2022:
I was offered a salary of 117,000 Baht per month. Is this a decent salary? How much would I be able to save a month from this?
Thiago on Mar 04, 2022:
Hi everyone. Me and my wife are thinking about to spend some time (probably 6 months) in Bangkok. I work remotely for a israeli company and i receive my money in dollars. My current salary is around 1600 dollars per month (around 52,000 baht). Is it enough to live in Bangkok including eating out (non expensive food), traveling to visit other countries (low cost trips), etc?
Greg on Oct 11, 2021:
Hey. I'm not sure who covers this. I'm a single guy from USA on Pension. What about an interpreter in Bangkok? How much for like a whole day, 8 hours?
Hum on Jul 02, 2021:
I want to know me and my wife and our 2 year kid. What will be the monthly expense of living . We don't need to bear rent ,utilities. If we cook food in home and send our child to normal school. What will be the monthly expense.
Anonymous on Feb 23, 2021:
Looks like us Chinese need to invade your country.But haven't we already? Thailand owes so much money to China we already own it.Bow to your new master the CCP.
Y on Feb 21, 2021:
Dear Henrique,

If you cook yourself and did not eat out at all. I think 15,000 THB is a plenty room for really great ingredients.
If it was include transportations+bills(because you said your rent only 10,000 THB I guess it is not include water and electricity), you have budget only 500THB per day for food,transportation,bills. I don’t think it was enough.

You should not pay your rent above 30% of your income. It will be shortage cashflow later and you are going into debt. I think you should looking for a cheaper apartment and using park for running instead. I heard that in soi Rangnam(near Ratchathewi) there are dorms for first jobber around 6,000-8,000 BAHT per month. and it is very close to Victory Monument BTS station. In case you might want to find others job have a nicer pay and require you to travel to work.

About your plan to do your work at co-working space, I think you should not go it will cause you too much money to stay there. I don’t know others will be like me or not but I feel I should buy food to stay there every 2 hours, if I stay there all day, sometime it cost me almost 700 THB for only 6 hours.

You should stay and do your work at your dorm and brew your coffee yourself. You get a nicer coffee, cheaper price per cup and more private place. If you want some noisy surrounding just open youtube and search coffee playlist.

Please keep in mind stay at your home to save money because 25,000 THB included all basic needs is very tight in my opinion(eat regular cook food not instant noodle everyday).

Tips: you go to supermarket looking for clearance staple products e.g. eegs. It was discount 50% if you not mind not fresh eggs(I do so). I don’t know where you going to live just check where you live nearby but now, I see Tops market in silom complex and Tops central world regular have clearance eggs. You can get 10 eggs with half price. It can keep in refrigerator for 1-2 week after the expire label. Nice source of protein for a cheap price.

Do not for get your visa fee and ticket to flight back your home. Too many expense to think of. Please carefully list what you need for basic needs and calculate.

I hope my comment help you.

Best regards,
Y
Henrique on Feb 16, 2021:
Hey guys. I was reading the comments bellow and it really gave me and idea of the cost of living in Bangkok. I was an exchange student in NakhonSawan 2014/2015 and I want to come back to live in Bangkok now. Me and my girlfriend want to move by middle of next year to Bangkok, nowadays we make around 12k baht each (25k total/month). We are looking at some apartments costing arround 10k baht and we found some good option. My question is, is it possible to live nowadays in Bangkok with 15k baht for two people not including rent? We are young so we don't mind cutting off some fancier stuff, but for transportating, food and day to day costs would 15k be enought for us? The apartments we looked all have gym so that's not included aswell but we might need a coworking space to do our work.
Anonymous on Feb 09, 2021:
Thailand economy has never been stable and since few if any tourists are visiting anymore there isn't an ecomomy.The Thailand government built its economy primarily around tourism Pattaya is just one example of that. The Thailand government cannot absorb the fallout of giving money and food to many millions of citizens because they admitted it more than once. Then there's the king of Thailand who personally moved to Berlin almost one year ago taking 45 billion usd with him. His entire family is with him in Berlin. The king doesn't have any desire for returning to Thailand and he won't. People on here talk about things that make zero sense at all. The Thailand government has mismanaged the economy but what else is new? They've always done that from day one. Don't take my word for it though but instead drive around Bangkok and look at the mansions government officials live in. They're annual salaries don't match their dwellings or vehicles they drive. I wonder where all of that money came from? If you're asking yourselves that question you are totally lost. Thailand doesn't have an economy anymore but don't take my word for it though. Just drive around Thailand and look at all of the empty streets full of closed businesses permanently and there's your answer.
Y on Feb 09, 2021:
Dear Amee,

Glad to hear that’s my advice was helpful. Now, I am cooking for my husband’s lunch as well. He spend cash on hand only 30 THB/day in silom area because I prepare every meals and snacks for him to take with.

Moreover, if you want to save more in Thailand you have to use Shoppee or Lazada app every double date e.g. 12.12. The brand will have a huge discount for their product and free shipping.But don’t over stock just buy for 1 month because they will have promotion every month. You do not want to sink your money with household products too much. You might have a room for changing brand as well if you love to try new things.

Best regards,
Anonymous on feb 1
Anonymous on Feb 04, 2021:
Hello Amee you're welcome for the honest information. Highlighting guaranteed monthly salary are things most people overlook, not saying you do though. A good friend of mine was working in London and accepted a salary amount with a prominent employer in Bangkok several years ago.Her salary was supposed to be 115k baht monthly for a two year contract to be an IT tech.However when she arrived two weeks later the employer said 73k monthly is the maximum monthly salary offered by the company.Just remember if your future employer refuses to send you a copy of a guaranteed salary proposal not signed then run away don't walk away.It must be signed by a ceo of the company with the date signed plus notarized in Bangkok.Your full name and title must accompany the legal document as well.As a result she refused the employers offer of 73k baht. But she found a different IT position that paid 115k baht per month when looking in Bangkok.
Anonymous on Feb 03, 2021:
Hi Anonymous, Thank you for such a detailed response. Really appreciate all the tips that you've shared. Amee
Anonymous on Feb 03, 2021:
I got out of Bangkok just in time before mandatory lockdown in 2020 and I'm glad I did.Although unfortunate for many people corona has shown how mismanaged Thai government is concerning the welfare of its citizens and the lack thereof intentionally.The majority of people in Thailand are good people but even they question decisions Thai government makes.I read some things on here about people living in Bangkok and I truly wish them well with their endeavors but this is just the beginning of the end for Thailands attraction to many worldwide.Things are bad right now and even though eastern Thailand has returned to somewhat normalsy the businesses in Eastern Thailand small and large cannot bail out the rest of thailands economic problems for years to come.It was hard for me to get my wife and children out of Thailand especially since we are from Bangkok. Leaving relatives behind was and is especially hard too.But our families encouraged us to leave before things got out of hand so we did.
Anonymous on Feb 02, 2021:
Hello

The cost of living varies depending upon many things lifestyle, areas lived, single or with a family to support. Bangkok will be much higher on everything than anywhere else in Thailand that's a given.But after living and working in Bangkok 6 years I decided to leave Thailand as a single person. Yes I was making on average 85k monthly and I lived well.But I moved to Malaysia which was on average half of what it costs in Bangkok for a better quality of life.Infrastructer and the transportation system matters to me.But other than that Bangkok was just fine.
Anonymous on Feb 01, 2021:
Dear Anonymous,

I think 60,000 is enough for cover rent, monthly expenses, utilities, travel, entertainment etc. for 4 people in family if you are the only source income and you will live paycheck by paycheck(maybe in debt later on when bills pile up).I don’t think it is enough to save money and send back home.

I live in Thailand. My husband (me as a stay at home wife without a kid) earn more than that but barely save money because we live next to silom(CBD area)(20,000 baht per month only for a studio 30s qr.meter) for living near my husband workplace(walk for only 2 blocks).We spend avg. on food per day only 600 baht(2 person cooking healthy food and including eat-out occasionally).I have to cook almost every meal (except for lunch) clean and try everything to reduce cost of living e.g. change light bulb to led and hanging clothes instead of using dryer.

If you are single. 60,000 baht is a great deal. You can hire someone to clean your room once a week or use laundry service. But for 2 people I am not sure about saving but you will have a moderate life for sure.if you are a family of 4 want to have a big place and try to spend less on rent which mean you live far from city and must have a car which is a lot of expense on transportation(you can live far but near BTS line as well this might be a good strategy).I think you must have a real plan on spending money, meal prep is a must.

Oh,I saw expats near Sukhumwit (mostly Japanese) their company pay for their tuition fee for the kids. Don’t forget to ask about that. I guess you are from India, eating vegetarian food is an option for reduce avg. spending on food.If you work near Sukhumwit you can live near Thonglor as well. A condominium with a deep entrance may help reduce the rent. Or place near the BTS line but more far from Sukhumwit 32 is more cheaper.
Anonymous on Jan 30, 2021:
Hi Anonymous, Thank you for the info and your suggestion. Would 60,000 baht be enough to cover rent, monthly expenses, utilities, travel, entertainment etc.
Amee on Jan 27, 2021:
Hi Anonymous,
Thanks for your response. This is a job that is being offered by a company. I've cleared all the interview rounds, final salary discussion is due this week. If I don't get my kids here, what is the best salary that I should negotiate for, to live a decent life and save money to send back home.
Anonymous on Jan 27, 2021:
AMEE I hate to burst your bubble but the unemployment rate is 73.2% just in Bangkok and higher unemployment outside of Bangkok. Schools have been shutdown since March 2020.The Thailand government has decided to keep the entire country locked down until April 2022 depending upon evaluations.There's no HR needed no work. I live in Bangkok where I'm from.
Amee on Jan 26, 2021:
As a Senior program Manager, HR, how much salary should I ask for? I'm moving from Bangalore to Bangkok. We are 2 adults and 2 kids studying in the 9th grade.
Anonymous on Jan 20, 2021:
Thailand can kiss their tourist industry bye bye forever.Tourists remember the hell the Thailand government put them through getting visas way before covid19 ever happened.Ok time to enjoy your scalding soup with rice, bye losers.
Anonymous on Jan 11, 2021:
Second wave of covid19 plus the enhanced strain even more infectious found in Bangkok from the UK.There have been 33,000 new cases of covid19 and 287 deaths in just 4 days. It looks like Thailand won't be accepting tourists any time soon.
Anonymous on Dec 09, 2020:
The Thailand government is grasping at straws without any solutions to revamping tourism,because there's none anymore. For the longest time the Thailand government was so abrasive towards foreigners contributing to the economy like British Australians U S citizens etc.Basically the Thailand government changed regulations so often no foreigners could cope with it anymore.Thailand government was kicking foreigners out even if they owned homes or thriving businesses in Thailand being forced to leave the Thailand government kept homes and businesses owned by foreigners.
Few if any tourists will return for obvious reasons.
RandomThai on Oct 27, 2020:
Just a quick tricks, all mobile carrier / ISP has so-called "Retention Plan"
It is literally 50% off the normal plan if you trying to switch to other provider.

Take mine mobile plan. I use prepaid. 0.5 THB/min voice.
My plan is 349 THB for 20GB(Unlimit with fup)/300Mins of Voice

My internet cable plan is ~450THB
- FTTH 500/500 Mbps (with dynamic Public IP)
- Unlimited Mobile Data (speed capped at 10Mbps)
- 24 channels of TV

If you really want to run on the budget, there is a sim call Sim Thep ("ซิมลูกเทพ") which is unlimited data prepaid sim with discounted price. There are several plans for that tho. The best one, IMO, is 200THB / a month of the unlimited data capped at 10Mbps.
With that speed, you can watch FHD YouTube/Netflix but please do not 12-months prepaid one unless you are 100% sure on your signal coverage.