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Convert length, weight, temperature, speed and more in your browser — no account, no ads, no tracking. Instant accurate results every time.

Frequently Asked Questions

What unit categories does the basic unit converter cover?

Covers length (km, miles, feet, cm, mm, inches), weight (kg, lbs, oz, grams), temperature (Celsius, Fahrenheit, Kelvin), speed (km/h, mph, m/s), and volume (liters, gallons, fl oz).

Are the conversions accurate?

Yes. All conversions use standard international conversion factors. Precision is shown to several decimal places.

Does the unit converter work offline?

Yes. Once loaded, the converter runs entirely in your browser. No internet connection needed.

For more unit categories, which tool should I use?

For 20+ categories including area, pressure, energy, data storage, and more, use the Advanced Unit Converter.