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Mở ngay →Convert numbers to Vietnamese (mốt, tư, lăm, lẻ) or English words. Up to 999 trillion, optional "đồng" / "VND" suffix for contracts, Capitalize or ALL CAPS. Runs in your browser.
Convert numbers to words — especially useful for Vietnamese invoices, contracts, bank cheques. Supports up to 999 trillion. Bonus: English output.
The English mode produces standard wording (one thousand two hundred and thirty-four). Useful for export invoices, bilingual contracts, or expat payroll.
Yes. The tool follows formal Vietnamese number-reading rules: "mốt" after tens (hai mươi mốt = 21), "lăm" instead of "năm" (hai mươi lăm = 25), "tư" instead of "bốn" (hai mươi tư = 24), and "lẻ" inserted when tens digit is 0 (một trăm lẻ ba = 103). Compatible with Circular 200/2014/TT-BTC for invoices and contracts.
Up to 999 trillion (15 digits). That covers virtually all contracts, invoices, cheques, and large transactions in Vietnam.
"Đồng" is the legal Vietnamese standard for domestic contracts, invoices, and cheques. "VND" suits export invoices and bilingual contracts with foreign partners. The tool toggles between both.
Yes. All conversion runs in your browser via plain JavaScript — numbers are NEVER uploaded to a server. Safe for sensitive content like internal contracts.
Both are spoken (Northern Vietnam tends to use "tư"; Southern Vietnam keeps "bốn"). However, in formal contracts and accounting, "hai mươi tư" is the prevailing written form. The tool follows the written-document standard.
Vietnamese users needing quick calculations in local context: salary, PIT, loan interest, BMI, bill splitting, FX rates.
Vietnam 2026 regulations: SI 8%, HI 1.5%, UI 1%, progressive PIT 7 brackets. Updates within 48h of regulation changes.
Estimates are accurate for typical scenarios. For contracts/year-end settlements, consult an accountant.
Deposit + loan repayment, decreasing & flat rate, full amortization.
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