Number to Words

How to use Number to Words

1. Type the number — decimals and a leading minus sign are both accepted.
2. Choose international or Indian numbering.
3. Copy the result.
4. Decimal places are read out digit by digit after the word point.
5. Negative numbers are prefixed with “negative”.
6. The Indian system switches to lakh at 100,000 and crore at 10,000,000, with grouping to match.

Two numbering systems, two sets of groupings

The international system groups digits in threes: 1,000,000 is one million. The Indian system groups the first three and then in twos: 10,00,000 is ten lakh, and 1,00,00,000 is one crore. So 2,500,000 is “two point five million” to one reader and “twenty-five lakh” to another — the same quantity, differently parsed. If you are writing for an Indian audience, lakh and crore are not a translation but the normal way the number is said, and using millions reads as foreign.

Why anyone needs a number spelled out

Cheques, which require the amount in words as a fraud control, because words cannot be altered with a pen stroke the way a digit can. Contracts and invoices, where the words govern if they conflict with the figures. Legal drafting generally. Accessibility, where a screen reader handles a written-out figure more predictably than a long digit string. And language learning, where saying a large number aloud correctly is a genuine skill.

Conventions worth following

On a cheque, write the amount in words followed by “only” and strike out the remaining space, so nothing can be appended. Decimals are read digit by digit — 3.14 as “three point one four”, never “three point fourteen” — except for currency, where you write the fractional part as its own unit: “one thousand five hundred rupees and fifty paise”, or “and 50/100” on a US cheque. English does not put “and” between hundreds and tens in American usage but does in British usage: one hundred five against one hundred and five. Either is understood.