Free Unit Converter
10 CategoriesConvert between all common units — length, weight, temperature, area, volume, speed, time, data, pressure, and energy. All conversions are instant and accurate.
Length Converter
Result
1Metre (m)=3.28084Foot (ft)
All Length Units
from 1 mCommon Length Conversions
1 km
0.621 miles
1 mile
1.609 km
1 m
3.281 ft
1 ft
30.48 cm
1 inch
2.54 cm
1 yard
0.914 m
1 cm
0.394 in
100 m
328.1 ft
All Supported Unit Categories
Length
mm, cm, m, km, inch, foot, yard, mile, nautical mile
Weight
mg, g, kg, tonne, oz, lb, stone, quintal
Temperature
Celsius, Fahrenheit, Kelvin
Area
m², km², hectare, acre, bigha, sq ft, sq inch
Volume
ml, litre, m³, tsp, tbsp, cup, pint, gallon
Speed
m/s, km/h, mph, knot, mach
Time
ms, sec, min, hour, day, week, month, year
Data
bit, byte, KB, MB, GB, TB, PB
Pressure
Pa, kPa, bar, atm, PSI, mmHg
Energy
J, kJ, cal, kcal, Wh, kWh, BTU
Handy Conversion Facts to Remember
Frequently Asked Questions
How does the unit converter work?
All unit conversions are done using precise conversion factors. Each unit is first converted to a base unit (e.g. metres for length, kilograms for weight), then converted to the target unit. Temperature is handled separately using the standard formulas.
How do I convert Celsius to Fahrenheit?
Use the formula: °F = (°C × 9/5) + 32. For example, 100°C = (100 × 9/5) + 32 = 212°F. You can also just use the Temperature tab in our converter above.
What is a bigha in square metres?
A bigha is a traditional Indian land measurement unit. Its size varies by state, but our converter uses 1 bigha = 1,337.8 m², which is the commonly used standard in northern India.
How many kilometres in a mile?
1 mile = 1.60934 kilometres. Conversely, 1 kilometre = 0.62137 miles.
What is the difference between KB and KiB?
1 KB (Kilobyte) = 1,000 bytes in the SI standard. 1 KiB (Kibibyte) = 1,024 bytes in the binary standard. Most operating systems use 1 KB = 1,024 bytes historically, but the SI definition is 1,000 bytes.