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Free online calculators for life in Thailand — tax, salary, bills, loans, and more. Built for expats and locals.
56 tools • 4 categories • Free • No signup
Popular tools
- Thailand Cost of Living Calculator Estimate monthly living costs in Thailand by city and lifestyle — rent, food, transport, utilities, and insurance for expats Open tool
- Income Tax Calculator Calculate annual progressive personal income tax brackets Open tool
- Thailand Visa Cost Calculator Calculate annual Thailand visa costs including extensions, re-entry permits, and immigration fees for expats Open tool
- Thailand Overstay Fine Calculator Calculate Thai overstay fines and entry ban periods — 500 THB/day up to 20,000 THB maximum, plus blacklist consequences Open tool
- Net Salary Calculator Calculate net take-home salary after taxes and social security Open tool
- Retirement Visa Qualifier Check eligibility for Thailand retirement visa (Non-O-A) — bank deposit, income, and health insurance requirements Open tool
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Finance (32)
- Loan Calculator Calculate loan payments, monthly schedules, and total interest Open tool
- Car Loan Calculator Calculate car down payments, monthly installments, and interest Open tool
- Home Loan Calculator Calculate home mortgage payments, total interest, and associated fees Open tool
- VAT Calculator Calculate Value Added Tax (VAT) inclusion and exclusion Open tool
- Income Tax Calculator Calculate annual progressive personal income tax brackets Open tool
- Net Salary Calculator Calculate net take-home salary after taxes and social security Open tool
- Social Security Calculator Calculate social security contributions by section (33, 39, 40) Open tool
- Credit Card Payoff Calculator Calculate credit card payoff time and interest Open tool
- Savings Calculator Calculate future savings value with compound interest Open tool
- Shopee Profit Calculator Calculate Shopee seller commission, fees and net profit with the latest fee structure Open tool
- Car Depreciation Calculator Calculate residual value and stepped annual car depreciation Open tool
- Installment Calculator Calculate monthly installments and interest for products Open tool
- Fixed Deposit Calculator Calculate fixed deposit interest with simple or compound options Open tool
- Wage Calculator Calculate wages and overtime pay per Thai Labor Protection Act Open tool
- Property Transfer Fee Calculator Calculate property transfer fees and taxes Open tool
- Car Tax Calculator Calculate annual vehicle taxes by engine displacement Open tool
- Severance Pay Calculator Calculate severance pay, notice-in-lieu, unused vacation, unemployment benefits, and tax implications — all in one Open tool
- Gold Value Calculator Calculate gold bar and ornament buy/sell costs with craftsmanship fees and P&L Open tool
- Land & Building Tax Calculator Calculate land and building tax with real progressive brackets and primary-home exemption Open tool
- FIRE Number Calculator Calculate your Financial Independence number and years to early retirement Open tool
- Late Fee Calculator Calculate late payment interest per Thai civil law (5% per annum) Open tool
- Rent vs Buy Calculator Compare long-term costs of renting vs buying a home Open tool
- Food Cost Calculator Calculate food cost percentage and optimal pricing for restaurants Open tool
- Lazada/TikTok Profit Calculator Calculate net profit from selling on Lazada, TikTok Shop or Shopee Open tool
- SPayLater Installment Calculator Calculate SPayLater installment payments, processing fees, and totals Open tool
- Retirement Visa Qualifier Check eligibility for Thailand retirement visa (Non-O-A) — bank deposit, income, and health insurance requirements Open tool
- Work Permit Salary Check Check if your salary meets Thailand work permit minimum requirements by nationality group Open tool
- Condo Fee Calculator Calculate condo CAM fees, sinking fund, and total monthly expenses Open tool
- Rent Affordability Calculator Calculate affordable rent based on the 30% of net income rule Open tool
- LTR Visa Qualifier Check eligibility for Thailand's 10-year LTR (Long-Term Resident) visa across all 4 categories — income, assets, investment, and health insurance Open tool
- Marriage Visa Qualifier Check eligibility for the Thailand marriage visa (Non-O based on marriage to a Thai citizen) — 400,000 THB deposit or 40,000 THB/month income Open tool
- Foreign Income Tax Estimator Estimate Thai personal income tax on foreign-sourced income remitted into Thailand under rule Por.161/2566 (effective 2024) Open tool
Health (6)
- BMI Calculator Calculate BMI with WHO international or Asian cutoffs Open tool
- Due Date Calculator Calculate baby delivery dates and gestational age Open tool
- Body Fat Calculator Estimate body fat percentage from weight, height, age and sex Open tool
- TDEE Calculator Calculate daily calorie burn rate (TDEE) Open tool
- Macronutrient Calculator Calculate daily protein, fat, and carbohydrate targets Open tool
- Water Intake Calculator Calculate recommended daily water intake by weight and activity Open tool
Date & Time (2)
Utility (16)
- Electricity Bill Calculator Calculate electricity bills using PEA 2024 progressive tariffs Open tool
- EV Charging Cost Calculator Estimate EV charging costs for home (normal/TOU meter) and public AC/DC stations, including cost per kilometre, full-battery range, and trip range planning Open tool
- Shipping Cost Calculator Calculate shipping costs for Kerry, Flash, J&T, Thailand Post EMS/Registered with dimensional weight and zone pricing Open tool
- Percentage Calculator Calculate percentages, growth rates, and variations Open tool
- Bulk QR Code Generator Generate multiple QR codes in bulk from list data Open tool
- PromptPay QR Generator Generate EMVCo PromptPay QR codes with custom amounts Open tool
- Unit Converter Convert lengths, weights, temperatures, areas, and volumes Open tool
- Water Bill Calculator Calculate MWA/PWA water bills including sewage surcharge Open tool
- Random Number Generator Generate random integers within a custom range Open tool
- Bill Split Calculator Split restaurant bills, tips, and service charges Open tool
- Character Counter Count characters, words, spaces, and lines in text Open tool
- Thailand Visa Cost Calculator Calculate annual Thailand visa costs including extensions, re-entry permits, and immigration fees for expats Open tool
- Thailand Overstay Fine Calculator Calculate Thai overstay fines and entry ban periods — 500 THB/day up to 20,000 THB maximum, plus blacklist consequences Open tool
- Thailand Cost of Living Calculator Estimate monthly living costs in Thailand by city and lifestyle — rent, food, transport, utilities, and insurance for expats Open tool
- Immigration Fine Calculator Calculate fines for Thai immigration violations — 90-day report, TM30 notification, and working without permit Open tool
- Thailand Visa Checker by Country Check if your country needs a visa to enter Thailand and how long you can stay — based on the 2026 framework Open tool
How it works
1
Choose a tool
Pick from 31 calculator tools across all categories
2
Enter your data
Fill in the numbers — the system validates in real-time
3
Get instant results
Results appear instantly with full breakdown details
Latest articles
View all →Moving to Thailand — The Complete Guide for Expats (2026)
Everything foreigners need to prepare before and after moving to Thailand: visas, banking, healthcare, housing, transport, taxes, and daily life — with official sources.
How to Open a Thai Bank Account as a Foreigner (2026)
What foreigners need to open a bank account in Thailand: visa and document requirements, why tourist and DTV visas are often rejected, and tips for approval.
PromptPay for Foreigners — QR Payments in Thailand Explained (2026)
How foreigners use PromptPay in Thailand: registering with a passport number, paying by QR without registering, eligibility, and how it compares to cash.
Frequently asked questions
Is this website really free?
Yes, all tools are 100% free with no signup required.
Is my data stored?
No. All calculations run in your browser. No data is sent to any server.
How accurate are the results?
Formulas reference official government data and financial standards. Results are estimates for initial planning.
What languages are supported?
Thai and English are supported. Switch using the toggle in the top-right corner.
Does it work on mobile?
Yes, the site is fully responsive and works great on phones, tablets, and desktops.