Unit Converter
Convert between 100+ units across 13 categories — length, weight, temperature, area, volume, speed, time, digital storage, pressure, energy, power, angle, and fuel economy. Instant, accurate, free.
About Unit Converters
Unit converters are essential tools for translating measurements between systems, making work easier across science, engineering, business, travel, cooking, and daily life. Whether you need to switch between metric and imperial values or compare units across different industries, a reliable converter saves time and reduces mistakes.
Fast
Get instant results for everyday and technical conversions in a single click.
Accurate
Use standardized formulas and trusted conversion factors for consistent outputs.
Versatile
Convert length, weight, temperature, pressure, speed, energy, and more from one simple platform.
1 Metre (m) = 3.280839895 Foot (ft)
1 Metre (m) in all units
| Unit | Value |
|---|---|
| Millimetre (mm) | 1,000 |
| Centimetre (cm) | 100 |
| Metre (m)input | 1 |
| Kilometre (km) | 0.001 |
| Inch (in) | 39.37007874 |
| Foot (ft) | 3.280839895 |
| Yard (yd) | 1.093613298 |
| Mile (mi) | 0.0006213711922 |
| Nautical Mile | 0.0005399568035 |
| Light Year | 1.056971e-16 |
All Supported Categories
Length
10 units — mm to light years
Weight / Mass
9 units — mg to UK ton
Temperature
4 units — °C, °F, K, °R
Area
9 units — mm² to mi²
Volume
14 units — ml to teaspoon
Speed
6 units — m/s to Mach
Time
10 units — ns to year
Digital Storage
10 units — bit to GiB
Pressure
7 units — Pa to PSI
Energy
8 units — J to eV
Power
5 units — W to BTU/h
Angle
6 units — degree to arcsecond
Fuel Economy
4 units — km/L to L/100km
How to Use the Unit Converter
- 1
Select a unit category from the tabs (Length, Weight, Temperature, etc.).
- 2
Choose the unit you want to convert FROM in the left dropdown.
- 3
Enter your value in the input field below the FROM dropdown.
- 4
Choose the unit you want to convert TO in the right dropdown.
- 5
The result appears instantly. Use the swap button (⇄) to reverse the conversion.
- 6
Scroll down to see your value converted into all available units at once.
Common Conversion Formulas
Temperature
°F = (°C × 9/5) + 32
°C = (°F − 32) × 5/9
K = °C + 273.15
Length
1 inch = 2.54 cm
1 foot = 0.3048 m
1 mile = 1.60934 km
Weight
1 pound = 0.453592 kg
1 ounce = 28.3495 g
Volume
1 US gallon = 3.78541 L
1 UK gallon = 4.54609 L
Speed
1 mph = 1.60934 km/h
1 knot = 1.852 km/h
Digital Storage
1 KB = 1,000 bytes (decimal)
1 KiB = 1,024 bytes (binary)Frequently Asked Questions
How do I convert metres to feet?
Select 'Length', enter your value in metres, and choose feet as the target unit. 1 metre = 3.28084 feet. The result appears instantly without clicking any button.
How do I convert Celsius to Fahrenheit?
Select 'Temperature', enter your Celsius value, and choose Fahrenheit. Formula: °F = (°C × 9/5) + 32. For example, 100°C = 212°F, 0°C = 32°F.
What is the difference between metric and imperial units?
The metric (SI) system uses base-10 units like metres, kilograms, and litres — used by most of the world. The imperial system uses feet, pounds, and gallons — primarily used in the US and partially in the UK.
How many kilobytes are in a megabyte?
In decimal (SI): 1 MB = 1,000 KB. In binary (IEC): 1 MiB = 1,024 KiB. Our converter supports both decimal (KB, MB, GB) and binary (KiB, MiB, GiB) prefixes.
What is Kelvin and when is it used?
Kelvin (K) is the SI base unit of temperature, starting at absolute zero (−273.15°C). It is used in science, physics, and engineering. 0 K = −273.15°C = −459.67°F.
How is fuel economy converted between km/L and MPG?
1 km/L = 2.352 MPG (US) = 2.825 MPG (UK). L/100km is an inverse measure — lower is better. Formula: L/100km = 100 ÷ (km/L).