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Free Unit Converter
Convert length, weight, temperature, volume, area, speed, pressure, energy, power, time, angle and digital data — 100+ units, converted live as you type. No account, no download, nothing covering the input field.
Convert now
Pick a category and type a value — the answer updates on every keystroke.
Converted result
All units
Tap any row to make it the target unit.
| Unit | Symbol | Value |
|---|
How it works
Twelve categories from length to digital data, each with its own unit list and sensible defaults.
Every keystroke re-runs the conversion in your browser — no submit button, no page reload, no waiting.
Tap a row in the all-units table to make it the target unit, then copy the result line for your notes.
Popular conversions
One tap loads the category, units and value straight into the converter.
FAQ
How accurate are the conversions?
Factors are the exact definitions — 1 inch = 25.4 mm, 1 pound = 0.45359237 kg, 1 nautical mile = 1852 m. Results are shown to 4 significant figures in Auto mode, or to the exact number of decimals you choose (0–10).
Why does the result show a dash instead of a number?
A dash means the input is not a complete number yet ("", "-", "1e") or that From and To are the same unit. Pick two different units and type a full number — the tool never prints NaN or Infinity.
Is 1 GB 1000 MB or 1024 MB?
This converter uses the decimal definitions: 1 GB = 1000 MB, 1 MB = 1000 KB. Binary units are available too — 1 GiB = 1024 MiB — so both conventions are one tap away.
Does temperature use the same formula?
Temperature is offset-based, so it uses explicit conversion functions rather than a single multiplier: 0 °C = 32 °F = 273.15 K, and Rankine is supported as well.
Why is a month 30.44 days here?
Calendar months vary, so time conversions use average values: 1 month = 2,629,746 s (30.44 days) and 1 year = 365.2425 days. Use days or weeks when you need an exact count.
Is my data uploaded, and does it work offline?
Everything runs in your browser: no values are sent anywhere, there is no account and no sign-up. Once the page is loaded, conversions keep working without a connection.