Number Formatter

Number Formatter — 1234567.89 to Readable, in Any Locale

Raw numbers from databases and APIs arrive naked: no separators, inconsistent decimals, wrong for the target audience's locale. This free formatter adds thousands separators, fixes decimal precision with your choice of rounding rule, applies currency symbols, and outputs correct international styles — US, European, French, Swiss, and Indian lakh/crore grouping — for single values or bulk lists. Instant, in-browser, no signup.

One Number, Five Locales

The comma/dot swap between US and European styles is a genuine data hazard: 1.234 is one-and-a-bit in Boston and twelve hundred in Berlin. When exchanging spreadsheets across borders, formatting explicitly — rather than trusting defaults — prevents thousand-fold errors.

Rounding Rules Matter More Than They Look

Round half up (2.5 → 3) is what schools teach. Banker's rounding (2.5 → 2, 3.5 → 4 — half rounds to even) is what financial systems and IEEE 754 use, because it removes the systematic upward bias that half-up accumulates over millions of transactions. If your formatted figures must reconcile with an accounting system, match its rounding rule — the formatter offers both.

Bulk Formatting Workflow

Paste a raw column from SQL output or a CSV, set two decimals plus separators plus a currency symbol, and paste the finished column into your report. Ten minutes of manual comma-typing becomes one operation, and every figure is guaranteed consistent — the thing reviewers actually notice.

Free and Instant

Unlimited numbers, all locales, processed locally with no account.