Which unit types are supported?

Length, Weight (mass), Area and Volume with a wide range of units (SI and Imperial included).

Do I need an internet connection?

No. Conversion uses local factors — it works offline in the browser. History and favorites are stored locally.

Yes — select multiple targets (Ctrl/Cmd+click) to get several results in one go.

Yes — use the Favorites feature to pin common unit pairs for quick access.

free Online Unit Converter – Length, Weight, Area & Volume Calculator

Unit Converter — Length, Weight, Area, Volume | Unitify Pro

Convert Length, Weight, Area & Volume — multi-target, favorites, history, CSV export & shareable links.

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Measure

Amount

From

To (multi-select — Ctrl/Cmd+click)

＋ Save Favorite

★ Favorites

🧹 Clear History

Tip: use Ctrl/Cmd to multi-select targets.

Results

Conversion History