Tools
Free calculators for the numbers that matter most when you live, move to, or retire in Thailand — search or filter by topic to find yours.
86 of 86 tools
Living in Thailand
Check whether you meet the deposit, income, or combination requirement for the Non-Immigrant O/O-A retirement extension.
Updated 2026-08-10
Build an itemized monthly budget for Bangkok, Chiang Mai, Phuket, Pattaya, or Hua Hin.
Updated 2026-08-13
Compare your income against your expenses to see your monthly surplus or deficit.
Updated 2026-08-09
Estimate a monthly family budget in Thailand, scaled for extra adults and children.
Updated 2026-08-13
Estimate a solo monthly budget in Thailand, and see how much a roommate would save you.
Updated 2026-08-13
Estimate a student's monthly budget in Thailand, including housing, food, and study costs.
Updated 2026-08-13
Estimate your Thai electricity bill from monthly usage, including tiered rates, the Ft charge, and VAT.
Updated 2026-08-09
Estimate your Thai water bill from monthly usage, based on MWA's tiered residential rate.
Updated 2026-08-24
Compare home internet plans from major Thai providers by speed and price.
Updated 2026-08-09
See Thailand's 2026 public holidays and how many days until the next one.
Updated 2026-08-10
Count working days between two dates, excluding weekends and Thai public holidays.
Updated 2026-08-10
Compare the current time in Thailand against major cities worldwide.
Updated 2026-08-09
Find which Thai visa category fits your situation — retirement, marriage, work, study, and more.
Updated 2026-08-09
Work out your visa or permitted-stay expiry date and how many days you have left.
Updated 2026-08-09
Find when to apply for your extension, or estimate an overstay fine if you've missed it.
Updated 2026-08-11
Calculate your next 90-day address report due date and its grace window.
Updated 2026-08-11
Track the documents you need for a Thai marriage visa application.
Updated 2026-08-09
Check whether you meet the deposit or income requirement for the Thai marriage visa.
Updated 2026-08-09
Business
See the flat DBD registration fees for a new Thai limited company.
Updated 2026-08-12
Estimate the registered capital your Thai company needs for foreign work permits and ownership rules.
Updated 2026-08-09
Work out each shareholder's shares and investment from registered capital and ownership percentages.
Updated 2026-08-09
Estimate Thai withholding tax by payment type — services, rental, dividends, and more.
Updated 2026-08-09
Estimate Thai corporate income tax at the standard rate or the progressive SME brackets.
Updated 2026-08-09
See an employee's net pay and the employer's total monthly cost, including social security.
Updated 2026-08-16
Calculate employee and employer social security contributions from a monthly salary.
Updated 2026-08-16
Estimate statutory severance pay under Thai labor law by length of service.
Updated 2026-08-09
Find how many units you need to sell to cover your fixed and variable costs.
Updated 2026-08-09
Calculate return on investment from an initial investment and a return amount.
Updated 2026-08-09
Create a professional invoice with line items, VAT, and a downloadable PDF.
Updated 2026-08-09
Create a price quotation with line items, VAT, and a downloadable PDF.
Updated 2026-08-09
Create a payment receipt with line items, VAT, and a downloadable PDF.
Updated 2026-08-09
Immigration & Visas
Check whether you meet the deposit, income, or combination requirement for the Non-Immigrant O/O-A retirement extension.
Updated 2026-08-10
Find which Thai visa category fits your situation — retirement, marriage, work, study, and more.
Updated 2026-08-09
Work out your visa or permitted-stay expiry date and how many days you have left.
Updated 2026-08-09
Find when to apply for your extension, or estimate an overstay fine if you've missed it.
Updated 2026-08-11
Calculate your next 90-day address report due date and its grace window.
Updated 2026-08-11
Track the documents you need for a Thai marriage visa application.
Updated 2026-08-09
Check whether you meet the deposit or income requirement for the Thai marriage visa.
Updated 2026-08-09
Taxes & Finance
Estimate your Thai personal income tax, effective vs. marginal rate, and monthly take-home pay.
Updated 2026-08-16
Quickly estimate your Thai take-home pay after tax and social security.
Updated 2026-08-16
Work out the gross salary you'd need to reach a target take-home pay in Thailand.
Updated 2026-08-16
Combine salary, bonuses, and other income into a total annual figure.
Updated 2026-08-09
Estimate Thai withholding tax by payment type — services, rental, dividends, and more.
Updated 2026-08-09
Estimate Thai corporate income tax at the standard rate or the progressive SME brackets.
Updated 2026-08-09
Calculate return on investment from an initial investment and a return amount.
Updated 2026-08-09
See whether you're due a refund by comparing tax withheld against your actual tax liability.
Updated 2026-08-16
Calculate the monthly payment and total interest on a fixed-term loan.
Updated 2026-08-09
Estimate your monthly mortgage payment from a property price, down payment, rate, and term.
Updated 2026-08-09
Find out how long it'll take to pay off a credit card balance, and how much interest you'll pay.
Updated 2026-08-09
Convert between Thai baht and major currencies at a live reference rate.
Updated 2026-08-11
See how much a bank or money changer's rate is really costing you versus the mid-market rate.
Updated 2026-08-11
See how withdrawal size changes what Thai ATM fees cost you as a percentage of your cash.
Updated 2026-08-30
See how an investment grows over time with compound interest.
Updated 2026-08-09
Project how your savings will grow with regular monthly contributions.
Updated 2026-08-09
Estimate the transfer fee and specific business tax or stamp duty on a Thai property sale.
Updated 2026-08-09
Estimate the tax on a bonus payment and your net amount after tax.
Updated 2026-08-09
Property
Estimate your monthly mortgage payment from a property price, down payment, rate, and term.
Updated 2026-08-09
Work out your down payment target and how much you need to save each month to reach it.
Updated 2026-08-09
Estimate the transfer fee and specific business tax or stamp duty on a Thai property sale.
Updated 2026-08-09
Find how much rent you can comfortably afford based on your income.
Updated 2026-08-09
Calculate gross and net rental yield from a property price, rent, and expenses.
Updated 2026-08-09
Transport
Estimate your BTS Skytrain fare from the number of stations you're traveling.
Updated 2026-08-09
Estimate your MRT Blue Line fare from the number of stations you're traveling.
Updated 2026-08-09
Estimate the fuel cost of a driving trip from distance, fuel efficiency, and price per liter.
Updated 2026-08-09
Estimate expressway toll costs for a trip by route, vehicle type, and number of toll gates.
Updated 2026-08-09
Estimate a Bangkok city bus fare by bus type and trip distance.
Updated 2026-08-09
Import & Export
Calculate total shipment volume (CBM) and volumetric weight for sea and air freight.
Updated 2026-08-12
Estimate international freight cost from chargeable quantity and your rate.
Updated 2026-08-09
Estimate how many boxes fit in a shipping container based on box size and container type.
Updated 2026-08-12
Estimate Thai import duty and VAT owed on a shipment's CIF value.
Updated 2026-08-09
Total up customs broker and clearance fees for an import shipment.
Updated 2026-08-09
Calculate the total landed cost of an import — product, freight, duty, VAT, and clearance fees.
Updated 2026-08-09
Total up the cost of exporting a shipment, per unit and overall.
Updated 2026-08-09
See the cost impact of a supplier's minimum order quantity versus what you actually need.
Updated 2026-08-09
Build up a sourced product's full per-unit cost and a suggested selling price from your margin.
Updated 2026-08-09
Compare suppliers on total landed cost per unit, including their shipping.
Updated 2026-08-09
Cost of Living
Build an itemized monthly budget for Bangkok, Chiang Mai, Phuket, Pattaya, or Hua Hin.
Updated 2026-08-13
Compare your income against your expenses to see your monthly surplus or deficit.
Updated 2026-08-09
Estimate a monthly family budget in Thailand, scaled for extra adults and children.
Updated 2026-08-13
Estimate a solo monthly budget in Thailand, and see how much a roommate would save you.
Updated 2026-08-13
Estimate a student's monthly budget in Thailand, including housing, food, and study costs.
Updated 2026-08-13
Estimate your Thai electricity bill from monthly usage, including tiered rates, the Ft charge, and VAT.
Updated 2026-08-09
Estimate your Thai water bill from monthly usage, based on MWA's tiered residential rate.
Updated 2026-08-24
Compare home internet plans from major Thai providers by speed and price.
Updated 2026-08-09
Employment
Estimate your Thai personal income tax, effective vs. marginal rate, and monthly take-home pay.
Updated 2026-08-16
Convert a salary between hourly, daily, weekly, monthly, and annual figures.
Updated 2026-08-09
Quickly estimate your Thai take-home pay after tax and social security.
Updated 2026-08-16
Work out the gross salary you'd need to reach a target take-home pay in Thailand.
Updated 2026-08-16
Calculate overtime pay under Thai labor law for regular workdays and holidays.
Updated 2026-08-09
Combine salary, bonuses, and other income into a total annual figure.
Updated 2026-08-09
Count working days between two dates, excluding weekends and Thai public holidays.
Updated 2026-08-10
Estimate the registered capital your Thai company needs for foreign work permits and ownership rules.
Updated 2026-08-09
See an employee's net pay and the employer's total monthly cost, including social security.
Updated 2026-08-16
Calculate employee and employer social security contributions from a monthly salary.
Updated 2026-08-16
Estimate statutory severance pay under Thai labor law by length of service.
Updated 2026-08-09
Work out your prorated statutory annual leave entitlement and days remaining.
Updated 2026-08-09
Find the earliest permitted last working day after giving resignation notice.
Updated 2026-08-09
Estimate the tax on a bonus payment and your net amount after tax.
Updated 2026-08-09
Healthcare
BMI calculator using the WHO Asia-Pacific cut-offs for Asian adults — overweight from 23, obese from 25 — as used clinically in Thailand, with the standard WHO scale for comparison.
Updated 2026-09-13
Estimate your daily calorie needs (TDEE) from your body stats and activity level.
Updated 2026-08-09
Estimate your daily water intake target, adjusted for Thailand's climate.
Updated 2026-08-12
Get a rough estimate of private health insurance premiums by age and coverage tier.
Updated 2026-08-09
See illustrative cost ranges for common hospital visits and procedures in Thailand.
Updated 2026-08-09
Education
Estimate a student's monthly budget in Thailand, including housing, food, and study costs.
Updated 2026-08-13
Calculate your overall IELTS band score from your four section scores.
Updated 2026-08-09
Add up your TOEIC Listening and Reading scores and see an approximate CEFR level.
Updated 2026-08-12
See how many study hours per day you need to be ready by your exam date.
Updated 2026-08-09
Tourism
See Thailand's 2026 public holidays and how many days until the next one.
Updated 2026-08-10
Compare the current time in Thailand against major cities worldwide.
Updated 2026-08-09
Find which Thai visa category fits your situation — retirement, marriage, work, study, and more.
Updated 2026-08-09
Convert between Thai baht and major currencies at a live reference rate.
Updated 2026-08-11
See how much a bank or money changer's rate is really costing you versus the mid-market rate.
Updated 2026-08-11
See how withdrawal size changes what Thai ATM fees cost you as a percentage of your cash.
Updated 2026-08-30
Estimate the total cost of a Thailand trip by destination, style, and length.
Updated 2026-08-09
Build a multi-destination Thailand trip budget across several islands or cities.
Updated 2026-08-09
See the typical season, temperature, and rainfall for any region and month.
Updated 2026-08-09
General
Calculate exact age in years, months, and days, and days until your next birthday.
Updated 2026-08-09
Add or subtract days from a date, or find the number of days between two dates.
Updated 2026-08-09
Convert between common length, weight, volume, and temperature units.
Updated 2026-08-09
Generate a QR code from any text or URL and download it as a PNG image.
Updated 2026-08-09