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See all- Salary 30,000 a month: how much income tax?Income tax
- Typed ;yoouh with the wrong keyboard?Wrong keyboard
- If you live to 80, how many weeks are left?Life in weeks
- Take 7% VAT out of 1,070 bahtVAT
- 170 cm, 65 kg: check your BMIBMI
- How many calories to lose weight?TDEE
- A 4×4 m bedroom needs how many BTU?AC BTU
- 2 rai 1 ngan in square metresRai Ngan Wa
- 10,000 baht service fee minus 3% withholdingWithholding
- Write 1,250.75 baht in wordsAmount in words
- What year is 2569 B.E.?B.E. ↔ A.D.
- Exact age and the weekday you were bornAge
- Write 2569 in Thai numeralsThai digits
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Money & tax
- Thai VAT CalculatorCalculate Thai 7% VAT from a price that includes or excludes VAT. Get the pre-VAT amount, VAT and total instantly.
- Withholding Tax + VATCalculate Thai withholding tax (1%, 2%, 3%, 5%) and VAT together. Start from the pre-VAT price, the VAT-inclusive price or the amount transferred, as payer or payee.
- Thai Personal Income TaxEstimate Thai personal income tax with progressive brackets and the main allowances. See tax per bracket and your average rate.
Health
- Health Calculator (All-in-One)Enter sex, age, height and weight once to get BMI, BMR, TDEE calories, body fat %, waist-to-height, ideal weight, daily water and protein, and heart rate zones. Choose standard formulas.
- Your Life in WeeksIf you live to a given age, how many weeks have you lived and how many are left? See your whole life as a grid where one box is one week.
Home & land
- Thai Land Area Converter (Rai, Ngan, Square Wa)Convert Thai land units rai, ngan and square wa to square metres, acres, hectares and square feet, from width × length, with total land price.
- Air Conditioner BTU CalculatorHow many BTU does your room need? Based on room size, ceiling height, room type, sun exposure and number of people, with the recommended AC size.
Dates & time
Documents & text
- Amount in Words (Thai & English)Write a baht amount in words in Thai and English, e.g. หนึ่งพันสองร้อยบาทถ้วน / One Thousand Two Hundred Baht Only, for cheques, receipts and tax invoices.
- Thai ↔ Arabic NumeralsConvert Arabic digits to Thai numerals (๐๑๒๓) and back in any text, dates or phone numbers, for official Thai documents.
- Wrong Keyboard Layout Fixer (Thai ↔ English)Typed with the wrong keyboard layout? Paste text like ;yoouh and get วันนี้ back, or turn ้ำสสน into hello. Uses the Thai Kedmanee layout.