Last update: Oct 2026

Cost of Living Comparison Between Chiang Mai and O'Fallon, IL

For one person, living is cheaper in Chiang Mai: $925 a month against $2,591 in O'Fallon, IL, rent and utilities included – about $20,000 less a year. Rent and utilities account for most of the difference.

45

Cost of Living Index in Chiang Mai
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Chiang Mai Living Index
125

Cost of Living Index in O'Fallon, IL
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O'Fallon, IL Living Index

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Chiang Mai

🇹🇭 Thailand

$925

/mo nomad

O'Fallon, IL

🇺🇸 United States

$2,591

/mo nomad

Monthly Cost of Living

How much you'll spend in Chiang Mai and in O'Fallon, IL

Real prices from locals and on-the-ground checks – rent, groceries, transit and the daily extras. Here's what a month in Chiang Mai and in O'Fallon, IL actually costs, broken down by who's living it.

A single person spends $925 per month in Chiang Mai vs $2,591 in O'Fallon, IL, rent included.

Chiang Mai $925
O'Fallon, IL $2,591

A couple spends around $1,414 per month in Chiang Mai vs $3,785 in O'Fallon, IL, rent included.

Chiang Mai $1,414
O'Fallon, IL $3,785

A family of three spends $1,903 per month in Chiang Mai vs $4,980 in O'Fallon, IL, rent included.

Chiang Mai $1,903
O'Fallon, IL $4,980

Chiang Mai is about 64% cheaper than O'Fallon, IL, and outside of rent the biggest gap is in groceries.

Chiang Mai sits 32% below the global median, while O'Fallon, IL is 91% above – they fall on opposite sides of the world average.

Meal at Budget Restaurant

$2.29 ฿76.5

$18.28 $18.28

-87.47%

Three-Course Dinner for Two, Mid-Range

$19.64 ฿656

$74.4 $74.4

-73.60%

Fast Food Meal (McDonalds, etc)

$5.61 ฿188

$10.70 $10.70

-47.57%

Cappuccino

$1.66 ฿55.6

$5.27 $5.27

-68.50%

Coke/Pepsi/Fanta/Sprite (0.33 liter bottle)

$0.70 ฿23.40

$2.35 $2.35

-70.21%

Water (0.33 liter bottle)

$0.31 ฿10.24

$1.66 $1.66

-81.33%

Local Beer (0.5 liter draught)

$2.41 ฿80.4

$3.79 $3.79

-36.41%

Imported Beer (0.33 liter bottle)

$3.71 ฿124

$5.19 $5.19

-28.52%

Milk (1 liter)

$1.95 ฿65.3

$1.00 $1.00

95.00%

White Bread (500g)

$1.41 ฿47.03

$3.22 $3.22

-56.21%

Rice (white) (1kg)

$1.31 ฿43.62

$5.61 $5.61

-76.65%

Eggs

$2.18 ฿72.9

$3.93 $3.93

-44.53%

Local Cheese (1kg)

$16.65 ฿556

$12.06 $12.06

38.06%

Chicken Fillets (1kg)

$2.76 ฿92.2

$15.66 $15.66

-82.38%

Beef Round Steak (1kg)

$9.11 ฿304

$16.22 $16.22

-43.83%

Apples (1kg)

$2.39 ฿80.0

$8.24 $8.24

-71.00%

Banana (1kg)

$1.03 ฿34.26

$2.38 $2.38

-56.72%

Oranges (1kg)

$1.63 ฿54.4

$5.48 $5.48

-70.26%

Tomato (1kg)

$1.50 ฿50.0

$5.13 $5.13

-70.76%

Potato (1kg)

$1.29 ฿43.13

$4.24 $4.24

-69.58%

Onion (1kg)

$1.11 ฿37.03

$3.36 $3.36

-66.96%

Lettuce (1 head)

$0.72 ฿24.08

$2.01 $2.01

-64.18%

Water (1.5 liter bottle)

$0.53 ฿17.59

$2.54 $2.54

-79.13%

Cigarettes 20 Pack (Marlboro, Camel)

$4.31 ฿144

$8.09 $8.09

-46.72%

Wine (Bottle)

$17.95 ฿600

$14.94 $14.94

20.15%

Local Beer (0.5 liter bottle)

$1.58 ฿52.9

$2.91 $2.91

-45.70%

Imported Beer (0.33 liter bottle)

$2.84 ฿95.0

$3.34 $3.34

-14.97%

One-way Ticket (Public Transport)

$0.86 ฿28.86

$2.14 $2.14

-59.81%

Public Transport Monthly Pass (Regular Price)

$53.3 ฿1,780

Taxi Start (Normal Tariff)

$1.21 ฿40.29

$3.58 $3.58

-66.20%

Taxi (Normal Tariff) (1km)

$0.57 ฿18.99

$1.59 $1.59

-64.15%

Taxi 1hour Waiting (Normal Tariff)

$2.35 ฿78.6

$17.65 $17.65

-86.69%

Gasoline (1 liter)

$1.44 ฿47.96

$1.11 $1.11

29.73%

Midsize Hatchback 1.4l (Volkswagen Golf, Toyota Prius, Honda Civic, etc)

$20.7K ฿692.8K

$27.8K $27.8K

-25.47%

Compact Sedan 1.6l (Toyota Corolla, Mazda3, Kia K4, Hyundai Elantra, etc)

$26.8K ฿895.7K

$26.2K $26.2K

2.25%

Utilities for 2 People in 2-bedroom Apartment (Heating, Electricity, Gas, Water, Garbage) (85m2)

$62.3 ฿2,083

$242 $242

-74.25%

SIM Card Monthly Plan (Calls and 10GB+ Data)

$12.11 ฿405

$68.6 $68.6

-82.34%

Internet (50+ Mbps, Unlimited Data)

$19.94 ฿666

$75.9 $75.9

-73.73%

Gym Membership (Monthly)

$37.07 ฿1,239

$41.68 $41.68

-11.06%

Tennis Court (1 Hour on Weekend)

$3.78 ฿126

Cinema Ticket

$6.50 ฿217

$12.60 $12.60

-48.41%

Preschool or Kindergarten, Full Day, Private, 1 Child (Monthly)

$793 ฿26.5K

$663 $663

19.50%

International Primary School, 1 Child (Yearly)

$14.8K ฿494.9K

$12.6K $12.6K

17.65%

Jeans (Levis 501 Or Similar)

$53.7 ฿1,796

$46.51 $46.51

15.55%

Summer Dress (H&M, Zara, etc)

$24.62 ฿823

$25.04 $25.04

-1.68%

Sport Shoes (Adidas, Nike)

$90.9 ฿3,036

$57.5 $57.5

57.97%

Men's Leather Business Shoes

$71.1 ฿2,378

$49.29 $49.29

44.33%

1-bedroom Apartment, City Center (Monthly)

$455 ฿15.2K

$1,602 $1,602

-71.56%

1-bedroom Apartment, Outside City Center (Monthly)

$298 ฿9,954

$1,295 $1,295

-76.99%

3-bedroom Apartment, City Center (Monthly)

$908 ฿30.4K

$2,473 $2,473

-63.28%

3-bedroom Apartment, Outside City Center (Monthly)

$554 ฿18.5K

$2,167 $2,167

-74.45%

Buy Apartment in City Center (m2)

$1,931 ฿64.5K

$2,348 $2,348

-17.76%

Buy Apartment Outside City Center (m2)

$1,445 ฿48.3K

$2,575 $2,575

-43.90%

Average Monthly Net Salary (After Tax)

$591 ฿19.7K

20-Year Fixed Mortgage Interest Rate (Annual %)

5.57

6.72

-17.11%

CityCost data is based on AI and user input – minor inaccuracies may occur.

Last update for Chiang Mai: October 17, 2026

Last update for O'Fallon, IL: October 19, 2026

Monthly budget structure

Share of the monthly basket for one person, rent included.

Accommodation & Living

Chiang Mai

$298 32.2%

O'Fallon, IL

$1.3K 50% 335% $997

Groceries & Markets

Chiang Mai

$235 25.5%

O'Fallon, IL

$456 17.6% 93.5% $220

Clothing & Footwear

Chiang Mai

$108 11.7%

O'Fallon, IL

$80 3.1% 25.8% $28

Monthly Utilities & Internet

Chiang Mai

$94 10.2%

O'Fallon, IL

$387 14.9% 310% $292

Eating Out

Chiang Mai

$79 8.5%

O'Fallon, IL

$287 11.1% 265% $208

Getting Around

Chiang Mai

$61 6.6%

O'Fallon, IL

$20 * 0.8% 66.9% $41

Sport & Entertainment

Chiang Mai

$50 5.4%

O'Fallon, IL

$67 2.6% 33.6% $17

Categories marked with * are only partly priced – their share counts the items that do have prices.

Cost Breakdown

A central one-bedroom costs $455 in Chiang Mai versus $1,602 in O'Fallon, IL. Rent is usually the largest line item in a monthly budget, so the gap here sets the tone for the overall comparison.

A mid-range dinner for two costs $20.00 in Chiang Mai versus $74.0 in O'Fallon, IL. Monthly groceries follow the same trend: $235 vs $456 – making Chiang Mai the more affordable choice for daily food spending.

Good to know

🇹🇭 Chiang Mai

🇺🇸 O'Fallon, IL

🕒 Local time

07:07 7:07 AM

19:07 7:07 PM

12 h behind Chiang Mai

🌤 Weather

👥 Population

127,240

94,074

💱 Currency

Thai Baht THB ฿

United States Dollar USD $

📈 Exchange rate

100 THB = 2.99 USD

100 THB = 2.66 EUR

1 USD = 0.89 EUR

Exchange rates and currency converter

USD, EUR to THB – Thai Baht Converter

🇺🇸 United States Dollar ($)

🇹🇭 Thai Baht (฿)

Thai Baht exchange rates as of October 22, 2026: 1 USD = 33.42 THB (100 THB = 2.99 USD). 1 EUR = 37.57 THB (100 THB = 2.66 EUR).

United States Dollar exchange rates as of October 22, 2026: 1 EUR = 1.12 USD (1 USD = 0.89 EUR).

USD to THB in detail →

On the map

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Between locations

Chiang Mai O'Fallon, IL 13,570 km ≈ 17 h nonstop flight

From you

Chiang Mai
O'Fallon, IL

Distances are measured in a straight line. Your location is detected approximately.

City Median Internet Speeds Comparison (Updated April 2026)

The chart highlights the Precision Threshold for mobile and fixed broadband internet speeds, updated quarterly.

Digital Nomad Cost of Living Index

Chiang Mai vs O'Fallon, IL: Cost of Living - Frequently Asked Questions

O'Fallon, IL costs about 180% more than Chiang Mai, and outside of rent the gap comes mainly from groceries. That's enough to noticeably affect everyday spending and lifestyle for anyone choosing between the two.

For a comfortable life, plan on about $1,388 per month in Chiang Mai and $3,886 in O'Fallon, IL. That covers rent, food, utilities, transport, and enough left over to feel settled – not just surviving.

Rent is clearly cheaper in Chiang Mai, especially for central apartments. Housing is actually the single biggest factor behind the overall cost gap between these two cities.

A mid-range dinner for two costs $20.00 in Chiang Mai and $74.0 in O'Fallon, IL. That's a good indicator of the overall restaurant and café pricing gap between the two cities.

Groceries cost about 93% more in O'Fallon, IL, though it depends on what you buy. Local produce may be comparable; imported and premium items show the biggest price gap.

A $1,000 monthly budget goes further in Chiang Mai, where all-in costs run around $925, than in O'Fallon, IL at $2,591. In Chiang Mai it covers expenses comfortably, while in O'Fallon, IL it requires careful planning or may not stretch far enough.

For digital nomads, it depends on budget. Chiang Mai costs $925 versus $2,591 in O'Fallon, IL. Both have workable remote work infrastructure, but the cost gap matters when income varies month to month.

Both have safer and rougher neighborhoods, but overall safety is comparable to other large cities. Neighborhood choice matters more than the city-level comparison – central, well-trafficked areas feel secure in both.

If budget matters most, go with Chiang Mai. If higher salaries, better infrastructure, or specific career opportunities are the priority, O'Fallon, IL makes more sense. Both are solid long-term options with distinct trade-offs.