Unit Converters

125 free unit conversion tools. Instant, accurate, works on any device. No sign-up required.

Weight (16)Length & Distance (26)Temperature (8)Volume (23)Area (10)Speed (7)Data Storage (9)Time (10)Energy (11)Pressure (5)

Weight Conversions

kg → lbs

Kilograms to Pounds

Pounds to Kilograms

Ounces to Grams

Grams to Ounces

Stones to Pounds

Kilograms to Stones

Pounds to Stones

Grams to Kilograms

Milligrams to Grams

Metric Tons to Kilograms

t → lbs

Metric Tons to Pounds

US ton → kg

US Short Tons to Kilograms

Kilograms to Ounces

Pounds to Grams

Ounces to Pounds

Pounds to Ounces

Temperature Conversions

°C → °F

Celsius to Fahrenheit

°F → °C

Fahrenheit to Celsius

Fahrenheit to Kelvin

Celsius to Kelvin

Kelvin to Celsius

Kelvin to Fahrenheit

Celsius to Kelvin

Fahrenheit to Kelvin

Area Conversions

sq ft → sq m

Square Feet to Square Meters

ac → sq ft

Acres to Square Feet

sq m → sq ft

Square Meters to Square Feet

ha → ac

Hectares to Acres

ft² → m²

Square Feet to Square Meters

ac → ha

Acres to Hectares

m² → acres

Square Meters to Acres

ft² → acres

Square Feet to Acres

mi² → km²

Square Miles to Square Kilometers

m² → acres

Square Meters to Acres

Speed Conversions

mph → km/h

Miles per Hour to Kilometers per Hour

km/h → mph

Kilometers per Hour to Miles per Hour

kn → mph

Knots to Miles per Hour

km/h → mph

Kilometers per Hour to Miles per Hour

m/s → km/h

Meters per Second to Kilometers per Hour

ft/s → mph

Feet per Second to Miles per Hour

m/s → mph

Meters per Second to Miles per Hour

Data Storage Conversions

MB → GB

Megabytes to Gigabytes

GB → TB

Gigabytes to Terabytes

KB → MB

Kilobytes to Megabytes

GB → MB

Gigabytes to Megabytes

MB → GB

Megabytes to Gigabytes

GB → TB

Gigabytes to Terabytes

B → KB

Bytes to Kilobytes

TB → GB

Terabytes to Gigabytes

PB → TB

Petabytes to Terabytes

Time Conversions

Hours to Minutes

Days to Hours

Minutes to Hours

Seconds to Minutes

Weeks to Days

Hours to Minutes

Days to Hours

Months to Days

Years to Days

Years to Hours

Energy Conversions

cal → J

Calories to Joules

J → cal

Joules to Calories

kWh → MJ

Kilowatt-Hours to Megajoules

J → kWh

Joules to Kilowatt-Hours

BTU → J

BTU to Joules

Nm → ft-lbs

Newton-Meters to Foot-Pounds

ft-lbs → Nm

Foot-Pounds to Newton-Meters

W → hp

Watts to Horsepower

hp → W

Horsepower to Watts

W → BTU/hr

Watts to BTU per Hour

BTU/hr → W

BTU per Hour to Watts

Pressure Conversions

PSI to Bar

Bar to PSI

Atmospheres to PSI

PSI to Atmospheres

Bar to Atmospheres