📏 Unit Converter
Convert between common and scientific units in real time.
Length
Millimeters (mm)
Centimeters (cm)
Meters (m)
Kilometers (km)
Inches (in)
Feet (ft)
Yards (yd)
Miles (mi)
Micrometers (µm)
Nanometers (nm)
Nautical Miles (nmi)
Astronomical Units (AU)
Mass
Milligrams (mg)
Grams (g)
Kilograms (kg)
Tonnes (t)
Pounds (lb)
Ounces (oz)
Stone (st)
Slug
Temperature
Celsius (°C)
Fahrenheit (°F)
Kelvin (K)
Rankine (°R)
Volume
Milliliters (mL)
Liters (L)
Cubic meters (m³)
Cubic centimeters (cm³)
Cubic millimeters (mm³)
Cubic inches (in³)
Cubic feet (ft³)
Gallons (US)
Gallons (UK)
Oil Barrel (bbl)
Cubic kilometers (km³)
Area
Square millimeters (mm²)
Square centimeters (cm²)
Square meters (m²)
Hectares (ha)
Square kilometers (km²)
Square inches (in²)
Square feet (ft²)
Square yards (yd²)
Square miles (mi²)
Acre
Speed
Meters per second (m/s)
Kilometers per hour (km/h)
Miles per hour (mph)
Knot (kn)
Feet per second (ft/s)
Speed of light (c)
Time
Nanoseconds (ns)
Microseconds (µs)
Milliseconds (ms)
Seconds (s)
Minutes (min)
Hours (h)
Days (d)
Weeks (wk)
Months (mo)
Years (yr)
Centuries (cent)
Energy
Joules (J)
Kilojoules (kJ)
Megajoules (MJ)
Gigajoules (GJ)
Calories (cal)
Kilocalories (kcal)
Watt-hours (Wh)
Kilowatt-hours (kWh)
Electronvolt (eV)
BTU
Pressure
Pascals (Pa)
Kilopascals (kPa)
Megapascals (MPa)
Bar
Atmospheres (atm)
Pounds per square inch (psi)
Torr