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Units Converter is a free conversion utility by ThinkaBell. It runs entirely locally in your browser — all conversions happen in your browser — no sign-up, no file uploads, and no data ever leaves your device.
- Core functionality: designed for units converter tasks with accurate results.
- Privacy-first: no data collection, no tracking, no uploads.
- Instant results: calculations and outputs appear immediately.
- Free forever: no premium tiers, no hidden charges, no accounts.
Units Converter
Quickly convert between units of length, mass, temperature, volume, speed, area, and data storage.
Ever needed to switch between kilometers and miles on the fly? Or figure out how many cups are in a liter while following a recipe? This converter handles seven categories — length, weight, temperature, volume, speed, area, and data storage — using proper formulas so you always get the right number. Pick a category, type in a value, choose your units, and the result shows up immediately. Everything runs right here in your browser, so you can convert as much as you want with no limits.
Batch Convert
Enter one value per line. Results will appear in a table.
Custom Units
Define your own units by name and factor relative to the base unit. Saved to your browser.
Enter a value above to see the conversion result here.
