Unit Converter

Length, weight, temperature, data and more — convert instantly. Free.

Stays on your device. This tool runs in your browser — nothing you paste or open ever leaves it. Nothing uploaded, nothing to leak.

How to use it

Choose a category (length, weight, temperature, area, volume, speed or data), type a value in any unit, and the rest convert live. Switch the “from” unit any time — conversions are exact factors, with temperature handled by formula.

Unit Converter — TechWhack Score

9.3/10

Privacy 10/10

Conversion runs in your browser — nothing is uploaded.
Speed 10/10

Every related unit updates instantly.
Features 7/10

Converts across categories — length, weight, temperature, data and more — updating every unit at once.
Free 10/10

No sign-up, no daily limit, embeddable.

Verdict: Pick a category, type a value, and every related unit updates at once — clean and ad-light.

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A unit converter changes a value from one unit to another — metres to feet, kilograms to pounds, Celsius to Fahrenheit, megabytes to gigabytes and more. Pick a category, enter a value, and every related unit updates instantly.

Categories covered

Length, mass/weight, temperature, area, volume, speed and digital storage — the everyday conversions, all offline in your browser so they work without a connection.

FAQ

What units can I convert between?It covers length, weight, temperature, data sizes, and more, and every related unit updates at once when you type a value. So entering a distance in miles instantly shows kilometers, meters, feet, and the rest together.

Why does converting temperature work differently from length?Temperature scales like Celsius and Fahrenheit have different zero points, so conversion uses a formula with an offset, not just multiplication. Length and weight scale by simple ratios, which is why they feel more straightforward.

What is the difference between a kilobyte and a kibibyte?A kilobyte is often used as 1,000 bytes, while a kibibyte is exactly 1,024 bytes, which is why advertised storage can look smaller than what your computer reports. Knowing which convention a tool uses explains the discrepancy.

Is everything calculated in my browser?Yes. All conversions run on your device with no upload, so they work instantly and even offline once the page has loaded. Nothing you enter is sent anywhere.