Unit Converter
Convert between metric and imperial units — length, weight, temperature, area, volume, speed, time, data storage, pressure and energy — instantly, with every unit in the category listed at once.
Unit Converter
Convert length, weight, temperature, area, volume, speed, time, data, pressure and energy units.
Base unit: metre. Imperial and nautical units included.
Result
3.28084ft
1 m = 3.28084 ft
- Nanometre(nm)1,000,000,000
- Micrometre(µm)1,000,000
- Millimetre(mm)1,000
- Centimetre(cm)100
- Metre(m)1
- Kilometre(km)0.001
- Inch(in)39.370079
- Foot(ft)3.28084
- Yard(yd)1.093613
- Mile(mi)0.000621
- Nautical mile(nmi)0.00054
How to use
The whole flow runs in your browser — nothing is uploaded.
- Choose a categoryTen everyday categories, from length and weight to data storage and energy.
- Set the two unitsPick from and to, or use Common pair and swap for the conversions people look up most.
- Enter the valueResults are computed locally with exact standard factors as you type.
- Read the tableThe same value is converted into every unit of the category, so one entry answers the whole question.
- Every step runs locally in your browser.
Key Features
Convert length, weight, temperature, area, volume, speed and more. Everything runs client-side on your own device.
- Ten categoriesLength, weight & mass, temperature, area, volume, speed, time, data storage, pressure and energy.
- Full conversion tableEvery unit in the category for the value you typed — not just the pair you picked.
- Instant, exact mathsStandard definitions (1 in = 25.4 mm, 1 kg = 2.20462262 lb) evaluated as you type.
- Client-side onlyNothing is sent anywhere — the conversions are plain arithmetic in the page.
Frequently asked questions
Length, weight and mass, temperature, area, volume (US and imperial liquid measures), speed, time, data storage (decimal and binary), pressure and energy — with the standard units for each.
Each unit uses its exact international definition, and values are shown to ten significant digits, so a conversion never drifts because of rounding in the middle of the calculation.
Because both are in use: storage makers count 1000 bytes as a kilobyte, while operating systems often show 1024-byte kibibytes. Both scales are listed so you can match whichever number you were given.
Yes. Temperature is an affine scale, so it uses the offsets rather than a simple multiplier — Celsius, Fahrenheit, Kelvin and Rankine all convert correctly in both directions.