Apply various formats to numbers: thousands separator, currency, scientific notation, and more.
Decimal numbers are supported.
Negative numbers retain the '-' prefix.
Pre-formatted numbers (with commas/spaces) are accepted as input.
Apply various formats to your numbers
Number formatting adds separators to large numbers for readability. Thousands comma (1,234,567) is standard internationally. Currency formats add currency symbols before amounts.
In East Asian countries like Korea, China, and Japan, where the number system uses units of 10,000 (만/萬).
Yes, separators are applied only to the integer part. Decimals remain unchanged. e.g., 1234567.89 → 1,234,567.89
For very large numbers (stars in the universe), very small numbers (atomic sizes), scientific papers, and engineering calculations.
Learn various ways to display numbers for readability.
ISO 31-0 recommends grouping digits in threes for readability. Korea and the US use commas (,), while some European countries use periods (.) or spaces. Thousands separators are essential in finance, accounting, and official documents.
Scientific notation expresses very large or small numbers concisely. 1,234,567 = 1.234567 × 10⁶. It's widely used in science, engineering, and statistics.