A free, fast, and accurate number-to-words converter supporting 30 world languages.
Number to Letter was built with one simple goal: to make number-to-word conversion accessible to everyone, everywhere — for free.
Whether you're writing a cheque, filling in a legal document, learning a new language, or simply curious how "1,000,000" sounds in Japanese, our tool gives you an instant, grammatically accurate answer in 30 languages.
We believe language tools should be open, fast, and ad-light. No sign-up. No paywalls. No unnecessary friction.
Number to Letter runs entirely in your browser. There are no server-side calls for conversions — all 30 language algorithms are bundled directly into the page for instant, offline-capable results.
Each language uses a custom-built conversion engine that respects grammatical rules specific to that language — including gender agreement (French, Spanish, Russian), special counting systems (Chinese, Japanese, Korean), and right-to-left script (Arabic, Hebrew, Persian).
You can convert any integer between -999,999,999,999 and 999,999,999,999. Switch between languages using the language selector in the top navigation bar — the URL updates automatically so you can share or bookmark your language preference.