About Unit Converter
Unit conversion is unavoidable across engineering, trade and daily life — a US blueprint in inches must become millimeters for a domestic shop; a baking recipe in cups must match a metric jug; a logistics quote in miles must reconcile with a navigation app in kilometers. This tool gathers length, weight, area, volume, speed and data-storage units in one place, covering both metric and imperial systems. Type on either side and the other updates instantly, with the ratio and formula shown. Everything runs locally in your browser, so it works offline. Tip: Bookmark this tool for quick access whenever you need mathematical calculations. All computation happens locally in your browser with instant results.
Use Cases
- Blueprint cross-check — Convert imperial dimensions (inch, foot) to metric millimeters or meters to avoid CAD-to-shop mismatch.
- Recipe scaling — Switch between cups, milliliters and pints so American recipes fit a metric kitchen with precise ratios.
- Logistics mileage — Convert miles to kilometers or nautical miles to reconcile cross-border transport distance and quoting.
- Land area — Convert acres, hectares and square meters for overseas property and farmland comparison.
- Storage sizing — Switch between bytes, KB, MB, GB, TB, PB to gauge real disk and cloud capacity.
- Unit-test values — Convert test expectations between metric and imperial to verify the result of a unit-conversion function.
- Pressure and torque — Convert between psi, bar, Pa and N·m for mechanical engineering specs and tool calibration.
FAQ
Is the accuracy reliable?
We use internationally standard conversion factors (e.g. 1 inch = 0.0254 m) with high-precision floating-point math, keeping 12 significant digits before rounding — accurate enough for common use.
Does it support temperature?
Not here, because Celsius/Fahrenheit/Kelvin are not linear ratio conversions. Use our Temperature Converter for that.
Why 1024 instead of 1000 for data?
We use binary prefixes (1 KB = 1024 B) to match how operating systems report size; for decimal prefixes (1 KB = 1000 B) convert manually.
Can I type on either side?
Yes. Edit either input and the other recomputes instantly — no need to swap direction.
Does it work offline?
Yes. All logic runs locally in your browser; once loaded it works without a network and uploads nothing.
Any browser compatibility requirements?
This tool works in all modern browsers (Chrome, Firefox, Edge, Safari). No plugins or extensions required.
Can I use it offline?
After initial load, most features work offline. The core logic runs entirely in your browser with no network dependency.