Number to Words Converter (US & Indian System)
When you're filling out a check, drafting an invoice, or completing a legal document, you'll often need to write the number out in words.
It's not just a formality. On a check, if the numeric amount and the written amount disagree, the words take precedence.
This converter handles both the US (International) system and the Indian system with lakhs and crores, so you get the right format for the right context.
Type a number, pick your system, and the words appear instantly. Use the Copy button to paste them wherever you need.
How to Use This Number to Words Converter
- Type your number in the input field. Decimals work fine.
- Choose your number system: International (US) for millions and billions, or Indian (Lakhs/Crores) for the South Asian format. Select Show Both to see both side-by-side.
- Toggle Currency Mode if you want the output formatted as Dollars and Cents (US) or Rupees and Paise (Indian).
- Check Capitalize first letter if you want the result ready to paste into a document.
- Hit Copy to copy the words to your clipboard.
US/International vs. Indian Number System
The same number reads completely differently depending on which system you're using. That's not a quirk. The two systems group digits differently, which changes the words entirely.
International system groups digits in threes from the right: 1,00,000 becomes 1,000,000 (one million). The scale goes: thousand (10³), million (10⁶), billion (10⁹), trillion (10¹²).
Indian system groups the rightmost three digits together, then continues in pairs: 10,00,000 (ten lakh). The scale goes: thousand (10³), lakh (10⁵), crore (10⁷).
Here's the same number in both systems:
| Number | International | Indian |
|---|---|---|
| 100,000 | One hundred thousand | One lakh |
| 1,000,000 | One million | Ten lakh |
| 10,000,000 | Ten million | One crore |
| 1,000,000,000 | One billion | One hundred crore |
The difference becomes obvious quickly. 5,00,00,000 (Indian) and 50,000,000 (International) are the same value. Five crore. Fifty million.
If you're writing for an Indian audience or dealing with Indian rupees, lakh and crore are the right terms. For international finance or global documents, go with millions and billions.
Some Common Questions Answered
Does the converter handle very large numbers?
Yes. The International system supports up to 999 trillion. The Indian system correctly handles crores in the hundreds of thousands. For most practical purposes (checks, invoices, legal documents), you won't exceed these ranges.
What happens to the decimal part in plain number mode?
In plain number mode, the digits after the decimal point are spelled out individually. So 3.14 becomes "Three point one four." In Currency Mode, the decimal is treated as cents or paise, so 3.14 becomes "Three dollars and fourteen cents."
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