How to use
- Type a number up to 999 trillion. Decimals and minus signs are fine.
- Choose Words or Cheque (check) amount.
- Pick International names (million, billion) or Indian names (lakh, crore), and whether to put “and” after hundred.
- Set the letter case, then copy the result.
How the conversion works
- Numbers from 21 to 99 take a hyphen: twenty-one, ninety-nine.
- Digits are read in groups of three: thousand, million, billion, trillion. A billion here is a thousand million (1,000,000,000).
- The Indian system groups the last three digits, then pairs: 1,00,000 is one lakh and 1,00,00,000 is one crore.
- After the decimal point, each digit is read on its own: 2.75 is “two point seven five”.
- British English usually says “one hundred and five”. American English often drops the “and”. Both are correct.
| Number | International | Indian |
|---|---|---|
| 100,000 (1,00,000) | one hundred thousand | one lakh |
| 1,000,000 (10,00,000) | one million | ten lakh |
| 10,000,000 (1,00,00,000) | ten million | one crore |
| 1,000,000,000 | one billion | one hundred crore |
| 1,000,000,000,000 | one trillion | one lakh crore |
Writing a check
On a US check, write the dollars in words, then “and”, then the cents as a fraction of 100:
| Amount | Words on the check |
|---|---|
| $1,234.56 | One thousand two hundred thirty-four and 56/100 |
| $250.00 | Two hundred fifty and 00/100 |
| $75.50 | Seventy-five and 50/100 |
| $1,500.05 | One thousand five hundred and 05/100 |
If the words and the figures disagree, the words generally win under the US Uniform Commercial Code (§ 3-114).
Examples
- 2026: two thousand twenty-six (US), or two thousand and twenty-six (UK)
- 1,50,000 in Indian style: one lakh fifty thousand
- 0.05: zero point zero five
- −42: minus forty-two
More detail: how the converter handles edge cases
- Very large numbers stay exact. The digits are processed as text, not as a rounded computer number.
- Cheque amounts are rounded to the nearest cent, halves up, so 99.995 becomes one hundred and 00/100.
- Zeros typed after the decimal point are read out: 12.50 is “twelve point five zero”.
- Commas, spaces and apostrophes between digits are ignored. Use a dot for the decimal point.
Want an older style of writing numbers? Try the Roman numeral converter.