Number Formatter
Format numbers with thousands separators, decimal places, prefixes, and suffixes. Convert numbers to words in multiple languages instantly.
What is a thousands separator?
A thousands separator is a symbol (comma, dot, or space) placed between groups of three digits to make large numbers easier to read. For example, 1,000,000 instead of 1000000.
How does the number to words conversion work?
The tool converts numeric values into their written form. For example, 1234 becomes "one thousand two hundred thirty-four" in English or "一千二百三十四" in Chinese.
What is the Indian numbering format?
The Indian numbering system uses a different grouping pattern: the first three digits from the right are grouped together, then every two digits. For example, 12,34,567 instead of 1,234,567.
Can I add currency symbols to formatted numbers?
Yes, you can add currency prefixes like $, €, £, ¥, ₹, ₩ or enter a custom prefix. You can also add suffixes like % or any custom text.
What decimal places can I set?
You can set any number of decimal places from 0 to 10. The tool will round or pad with zeros as needed to match your specified precision.
Does the tool support negative numbers?
Yes, the formatter handles negative numbers correctly, maintaining the minus sign through all formatting operations including word conversion.
Can I copy the formatted result?
Yes, there's a one-click copy button that copies the formatted number to your clipboard for easy pasting into documents, spreadsheets, or other applications.
Is the number formatter free to use?
Yes, this tool is completely free with no registration required. You can format unlimited numbers with no restrictions.
What languages are supported for number to words?
The tool supports converting numbers to words in English, Chinese (Simplified and Traditional), Spanish, French, German, Japanese, Korean, Russian, and many more languages.
Can I use this tool offline?
The tool works entirely in your browser with no server processing. Once the page loads, it can function without an internet connection.
How accurate is the number to words conversion?
The conversion is 100% accurate for all valid numbers. The tool handles numbers from zero to vigintillion (10^63) with proper grammar rules for each language.
What number formats are available?
You can choose from standard format (1,234,567), scientific notation (1.23e+6), currency format ($1,234.56), custom formats with your own separators, and word format.
How to Use Number Formatter
Format any number with thousands separators, custom decimal places, prefixes, and suffixes — the result updates as you type. Everything runs locally in your browser, and no data is uploaded.
- Type or paste your number into the input field and watch the formatted result appear instantly.
- Under Thousands, choose Comma (,), Dot (.), Space, or None to control the grouping symbol.
- Under Decimals, pick 0 to 6 or Auto to set how many decimal places are displayed.
- Use the Decimal selector to choose which character separates integer and fraction, such as Dot (.).
- Fill in Prefix and Suffix to wrap the number with symbols like $ or %.
Combine Prefix '$' with a Comma (,) thousands separator to turn 1234567.8 into $1,234,567.8 in one step.
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