Unit Converters
Every conversion runs instantly in your browser — no lookups, no rounding surprises. Pick a category, then any pair of units.
Length
mm → cm
Millimeters to Centimeters
mm → m
Millimeters to Meters
mm → km
Millimeters to Kilometers
mm → in
Millimeters to Inches
mm → ft
Millimeters to Feet
mm → yd
Millimeters to Yards
mm → mi
Millimeters to Miles
cm → mm
Centimeters to Millimeters
cm → m
Centimeters to Meters
cm → km
Centimeters to Kilometers
cm → in
Centimeters to Inches
cm → ft
Centimeters to Feet
cm → yd
Centimeters to Yards
cm → mi
Centimeters to Miles
m → mm
Meters to Millimeters
m → cm
Meters to Centimeters
m → km
Meters to Kilometers
m → in
Meters to Inches
m → ft
Meters to Feet
m → yd
Meters to Yards
m → mi
Meters to Miles
km → mm
Kilometers to Millimeters
km → cm
Kilometers to Centimeters
km → m
Kilometers to Meters
km → in
Kilometers to Inches
km → ft
Kilometers to Feet
km → yd
Kilometers to Yards
km → mi
Kilometers to Miles
in → mm
Inches to Millimeters
in → cm
Inches to Centimeters
in → m
Inches to Meters
in → km
Inches to Kilometers
in → ft
Inches to Feet
in → yd
Inches to Yards
in → mi
Inches to Miles
ft → mm
Feet to Millimeters
ft → cm
Feet to Centimeters
ft → m
Feet to Meters
ft → km
Feet to Kilometers
ft → in
Feet to Inches
ft → yd
Feet to Yards
ft → mi
Feet to Miles
yd → mm
Yards to Millimeters
yd → cm
Yards to Centimeters
yd → m
Yards to Meters
yd → km
Yards to Kilometers
yd → in
Yards to Inches
yd → ft
Yards to Feet
yd → mi
Yards to Miles
mi → mm
Miles to Millimeters
mi → cm
Miles to Centimeters
mi → m
Miles to Meters
mi → km
Miles to Kilometers
mi → in
Miles to Inches
mi → ft
Miles to Feet
mi → yd
Miles to Yards
Weight
mg → g
Milligrams to Grams
mg → kg
Milligrams to Kilograms
mg → t
Milligrams to Metric Tons
mg → oz
Milligrams to Ounces
mg → lb
Milligrams to Pounds
mg → st
Milligrams to Stone
g → mg
Grams to Milligrams
g → kg
Grams to Kilograms
g → t
Grams to Metric Tons
g → oz
Grams to Ounces
g → lb
Grams to Pounds
g → st
Grams to Stone
kg → mg
Kilograms to Milligrams
kg → g
Kilograms to Grams
kg → t
Kilograms to Metric Tons
kg → oz
Kilograms to Ounces
kg → lb
Kilograms to Pounds
kg → st
Kilograms to Stone
t → mg
Metric Tons to Milligrams
t → g
Metric Tons to Grams
t → kg
Metric Tons to Kilograms
t → oz
Metric Tons to Ounces
t → lb
Metric Tons to Pounds
t → st
Metric Tons to Stone
oz → mg
Ounces to Milligrams
oz → g
Ounces to Grams
oz → kg
Ounces to Kilograms
oz → t
Ounces to Metric Tons
oz → lb
Ounces to Pounds
oz → st
Ounces to Stone
lb → mg
Pounds to Milligrams
lb → g
Pounds to Grams
lb → kg
Pounds to Kilograms
lb → t
Pounds to Metric Tons
lb → oz
Pounds to Ounces
lb → st
Pounds to Stone
st → mg
Stone to Milligrams
st → g
Stone to Grams
st → kg
Stone to Kilograms
st → t
Stone to Metric Tons
st → oz
Stone to Ounces
st → lb
Stone to Pounds
Temperature
Volume
ml → l
Milliliters to Liters
ml → m³
Milliliters to Cubic Meters
ml → fl oz
Milliliters to Fluid Ounces (US)
ml → cup
Milliliters to Cups (US)
ml → pt
Milliliters to Pints (US)
ml → qt
Milliliters to Quarts (US)
ml → gal
Milliliters to Gallons (US)
l → ml
Liters to Milliliters
l → m³
Liters to Cubic Meters
l → fl oz
Liters to Fluid Ounces (US)
l → cup
Liters to Cups (US)
l → pt
Liters to Pints (US)
l → qt
Liters to Quarts (US)
l → gal
Liters to Gallons (US)
m³ → ml
Cubic Meters to Milliliters
m³ → l
Cubic Meters to Liters
m³ → fl oz
Cubic Meters to Fluid Ounces (US)
m³ → cup
Cubic Meters to Cups (US)
m³ → pt
Cubic Meters to Pints (US)
m³ → qt
Cubic Meters to Quarts (US)
m³ → gal
Cubic Meters to Gallons (US)
fl oz → ml
Fluid Ounces (US) to Milliliters
fl oz → l
Fluid Ounces (US) to Liters
fl oz → m³
Fluid Ounces (US) to Cubic Meters
fl oz → cup
Fluid Ounces (US) to Cups (US)
fl oz → pt
Fluid Ounces (US) to Pints (US)
fl oz → qt
Fluid Ounces (US) to Quarts (US)
fl oz → gal
Fluid Ounces (US) to Gallons (US)
cup → ml
Cups (US) to Milliliters
cup → l
Cups (US) to Liters
cup → m³
Cups (US) to Cubic Meters
cup → fl oz
Cups (US) to Fluid Ounces (US)
cup → pt
Cups (US) to Pints (US)
cup → qt
Cups (US) to Quarts (US)
cup → gal
Cups (US) to Gallons (US)
pt → ml
Pints (US) to Milliliters
pt → l
Pints (US) to Liters
pt → m³
Pints (US) to Cubic Meters
pt → fl oz
Pints (US) to Fluid Ounces (US)
pt → cup
Pints (US) to Cups (US)
pt → qt
Pints (US) to Quarts (US)
pt → gal
Pints (US) to Gallons (US)
qt → ml
Quarts (US) to Milliliters
qt → l
Quarts (US) to Liters
qt → m³
Quarts (US) to Cubic Meters
qt → fl oz
Quarts (US) to Fluid Ounces (US)
qt → cup
Quarts (US) to Cups (US)
qt → pt
Quarts (US) to Pints (US)
qt → gal
Quarts (US) to Gallons (US)
gal → ml
Gallons (US) to Milliliters
gal → l
Gallons (US) to Liters
gal → m³
Gallons (US) to Cubic Meters
gal → fl oz
Gallons (US) to Fluid Ounces (US)
gal → cup
Gallons (US) to Cups (US)
gal → pt
Gallons (US) to Pints (US)
gal → qt
Gallons (US) to Quarts (US)
Area
cm² → m²
Square Centimeters to Square Meters
cm² → ha
Square Centimeters to Hectares
cm² → km²
Square Centimeters to Square Kilometers
cm² → in²
Square Centimeters to Square Inches
cm² → ft²
Square Centimeters to Square Feet
cm² → ac
Square Centimeters to Acres
cm² → mi²
Square Centimeters to Square Miles
m² → cm²
Square Meters to Square Centimeters
m² → ha
Square Meters to Hectares
m² → km²
Square Meters to Square Kilometers
m² → in²
Square Meters to Square Inches
m² → ft²
Square Meters to Square Feet
m² → ac
Square Meters to Acres
m² → mi²
Square Meters to Square Miles
ha → cm²
Hectares to Square Centimeters
ha → m²
Hectares to Square Meters
ha → km²
Hectares to Square Kilometers
ha → in²
Hectares to Square Inches
ha → ft²
Hectares to Square Feet
ha → ac
Hectares to Acres
ha → mi²
Hectares to Square Miles
km² → cm²
Square Kilometers to Square Centimeters
km² → m²
Square Kilometers to Square Meters
km² → ha
Square Kilometers to Hectares
km² → in²
Square Kilometers to Square Inches
km² → ft²
Square Kilometers to Square Feet
km² → ac
Square Kilometers to Acres
km² → mi²
Square Kilometers to Square Miles
in² → cm²
Square Inches to Square Centimeters
in² → m²
Square Inches to Square Meters
in² → ha
Square Inches to Hectares
in² → km²
Square Inches to Square Kilometers
in² → ft²
Square Inches to Square Feet
in² → ac
Square Inches to Acres
in² → mi²
Square Inches to Square Miles
ft² → cm²
Square Feet to Square Centimeters
ft² → m²
Square Feet to Square Meters
ft² → ha
Square Feet to Hectares
ft² → km²
Square Feet to Square Kilometers
ft² → in²
Square Feet to Square Inches
ft² → ac
Square Feet to Acres
ft² → mi²
Square Feet to Square Miles
ac → cm²
Acres to Square Centimeters
ac → m²
Acres to Square Meters
ac → ha
Acres to Hectares
ac → km²
Acres to Square Kilometers
ac → in²
Acres to Square Inches
ac → ft²
Acres to Square Feet
ac → mi²
Acres to Square Miles
mi² → cm²
Square Miles to Square Centimeters
mi² → m²
Square Miles to Square Meters
mi² → ha
Square Miles to Hectares
mi² → km²
Square Miles to Square Kilometers
mi² → in²
Square Miles to Square Inches
mi² → ft²
Square Miles to Square Feet
mi² → ac
Square Miles to Acres
Speed
m/s → km/h
Meters per Second to Kilometers per Hour
m/s → mph
Meters per Second to Miles per Hour
m/s → kn
Meters per Second to Knots
m/s → ft/s
Meters per Second to Feet per Second
km/h → m/s
Kilometers per Hour to Meters per Second
km/h → mph
Kilometers per Hour to Miles per Hour
km/h → kn
Kilometers per Hour to Knots
km/h → ft/s
Kilometers per Hour to Feet per Second
mph → m/s
Miles per Hour to Meters per Second
mph → km/h
Miles per Hour to Kilometers per Hour
mph → kn
Miles per Hour to Knots
mph → ft/s
Miles per Hour to Feet per Second
kn → m/s
Knots to Meters per Second
kn → km/h
Knots to Kilometers per Hour
kn → mph
Knots to Miles per Hour
kn → ft/s
Knots to Feet per Second
ft/s → m/s
Feet per Second to Meters per Second
ft/s → km/h
Feet per Second to Kilometers per Hour
ft/s → mph
Feet per Second to Miles per Hour
ft/s → kn
Feet per Second to Knots
Pressure
Pa → kPa
Pascals to Kilopascals
Pa → bar
Pascals to Bar
Pa → psi
Pascals to PSI
Pa → atm
Pascals to Atmospheres
Pa → mmHg
Pascals to Millimeters of Mercury
kPa → Pa
Kilopascals to Pascals
kPa → bar
Kilopascals to Bar
kPa → psi
Kilopascals to PSI
kPa → atm
Kilopascals to Atmospheres
kPa → mmHg
Kilopascals to Millimeters of Mercury
bar → Pa
Bar to Pascals
bar → kPa
Bar to Kilopascals
bar → psi
Bar to PSI
bar → atm
Bar to Atmospheres
bar → mmHg
Bar to Millimeters of Mercury
psi → Pa
PSI to Pascals
psi → kPa
PSI to Kilopascals
psi → bar
PSI to Bar
psi → atm
PSI to Atmospheres
psi → mmHg
PSI to Millimeters of Mercury
atm → Pa
Atmospheres to Pascals
atm → kPa
Atmospheres to Kilopascals
atm → bar
Atmospheres to Bar
atm → psi
Atmospheres to PSI
atm → mmHg
Atmospheres to Millimeters of Mercury
mmHg → Pa
Millimeters of Mercury to Pascals
mmHg → kPa
Millimeters of Mercury to Kilopascals
mmHg → bar
Millimeters of Mercury to Bar
mmHg → psi
Millimeters of Mercury to PSI
mmHg → atm
Millimeters of Mercury to Atmospheres
Energy
J → kJ
Joules to Kilojoules
J → cal
Joules to Calories
J → kcal
Joules to Kilocalories
J → Wh
Joules to Watt-hours
J → kWh
Joules to Kilowatt-hours
J → BTU
Joules to BTU
kJ → J
Kilojoules to Joules
kJ → cal
Kilojoules to Calories
kJ → kcal
Kilojoules to Kilocalories
kJ → Wh
Kilojoules to Watt-hours
kJ → kWh
Kilojoules to Kilowatt-hours
kJ → BTU
Kilojoules to BTU
cal → J
Calories to Joules
cal → kJ
Calories to Kilojoules
cal → kcal
Calories to Kilocalories
cal → Wh
Calories to Watt-hours
cal → kWh
Calories to Kilowatt-hours
cal → BTU
Calories to BTU
kcal → J
Kilocalories to Joules
kcal → kJ
Kilocalories to Kilojoules
kcal → cal
Kilocalories to Calories
kcal → Wh
Kilocalories to Watt-hours
kcal → kWh
Kilocalories to Kilowatt-hours
kcal → BTU
Kilocalories to BTU
Wh → J
Watt-hours to Joules
Wh → kJ
Watt-hours to Kilojoules
Wh → cal
Watt-hours to Calories
Wh → kcal
Watt-hours to Kilocalories
Wh → kWh
Watt-hours to Kilowatt-hours
Wh → BTU
Watt-hours to BTU
kWh → J
Kilowatt-hours to Joules
kWh → kJ
Kilowatt-hours to Kilojoules
kWh → cal
Kilowatt-hours to Calories
kWh → kcal
Kilowatt-hours to Kilocalories
kWh → Wh
Kilowatt-hours to Watt-hours
kWh → BTU
Kilowatt-hours to BTU
BTU → J
BTU to Joules
BTU → kJ
BTU to Kilojoules
BTU → cal
BTU to Calories
BTU → kcal
BTU to Kilocalories
BTU → Wh
BTU to Watt-hours
BTU → kWh
BTU to Kilowatt-hours
Digital Storage
bit → B
Bits to Bytes
bit → KB
Bits to Kilobytes
bit → MB
Bits to Megabytes
bit → GB
Bits to Gigabytes
bit → TB
Bits to Terabytes
bit → KiB
Bits to Kibibytes
bit → MiB
Bits to Mebibytes
bit → GiB
Bits to Gibibytes
B → bit
Bytes to Bits
B → KB
Bytes to Kilobytes
B → MB
Bytes to Megabytes
B → GB
Bytes to Gigabytes
B → TB
Bytes to Terabytes
B → KiB
Bytes to Kibibytes
B → MiB
Bytes to Mebibytes
B → GiB
Bytes to Gibibytes
KB → bit
Kilobytes to Bits
KB → B
Kilobytes to Bytes
KB → MB
Kilobytes to Megabytes
KB → GB
Kilobytes to Gigabytes
KB → TB
Kilobytes to Terabytes
KB → KiB
Kilobytes to Kibibytes
KB → MiB
Kilobytes to Mebibytes
KB → GiB
Kilobytes to Gibibytes
MB → bit
Megabytes to Bits
MB → B
Megabytes to Bytes
MB → KB
Megabytes to Kilobytes
MB → GB
Megabytes to Gigabytes
MB → TB
Megabytes to Terabytes
MB → KiB
Megabytes to Kibibytes
MB → MiB
Megabytes to Mebibytes
MB → GiB
Megabytes to Gibibytes
GB → bit
Gigabytes to Bits
GB → B
Gigabytes to Bytes
GB → KB
Gigabytes to Kilobytes
GB → MB
Gigabytes to Megabytes
GB → TB
Gigabytes to Terabytes
GB → KiB
Gigabytes to Kibibytes
GB → MiB
Gigabytes to Mebibytes
GB → GiB
Gigabytes to Gibibytes
TB → bit
Terabytes to Bits
TB → B
Terabytes to Bytes
TB → KB
Terabytes to Kilobytes
TB → MB
Terabytes to Megabytes
TB → GB
Terabytes to Gigabytes
TB → KiB
Terabytes to Kibibytes
TB → MiB
Terabytes to Mebibytes
TB → GiB
Terabytes to Gibibytes
KiB → bit
Kibibytes to Bits
KiB → B
Kibibytes to Bytes
KiB → KB
Kibibytes to Kilobytes
KiB → MB
Kibibytes to Megabytes
KiB → GB
Kibibytes to Gigabytes
KiB → TB
Kibibytes to Terabytes
KiB → MiB
Kibibytes to Mebibytes
KiB → GiB
Kibibytes to Gibibytes
MiB → bit
Mebibytes to Bits
MiB → B
Mebibytes to Bytes
MiB → KB
Mebibytes to Kilobytes
MiB → MB
Mebibytes to Megabytes
MiB → GB
Mebibytes to Gigabytes
MiB → TB
Mebibytes to Terabytes
MiB → KiB
Mebibytes to Kibibytes
MiB → GiB
Mebibytes to Gibibytes
GiB → bit
Gibibytes to Bits
GiB → B
Gibibytes to Bytes
GiB → KB
Gibibytes to Kilobytes
GiB → MB
Gibibytes to Megabytes
GiB → GB
Gibibytes to Gigabytes
GiB → TB
Gibibytes to Terabytes
GiB → KiB
Gibibytes to Kibibytes
GiB → MiB
Gibibytes to Mebibytes
Time
ms → s
Milliseconds to Seconds
ms → min
Milliseconds to Minutes
ms → h
Milliseconds to Hours
ms → d
Milliseconds to Days
ms → wk
Milliseconds to Weeks
ms → yr
Milliseconds to Years
s → ms
Seconds to Milliseconds
s → min
Seconds to Minutes
s → h
Seconds to Hours
s → d
Seconds to Days
s → wk
Seconds to Weeks
s → yr
Seconds to Years
min → ms
Minutes to Milliseconds
min → s
Minutes to Seconds
min → h
Minutes to Hours
min → d
Minutes to Days
min → wk
Minutes to Weeks
min → yr
Minutes to Years
h → ms
Hours to Milliseconds
h → s
Hours to Seconds
h → min
Hours to Minutes
h → d
Hours to Days
h → wk
Hours to Weeks
h → yr
Hours to Years
d → ms
Days to Milliseconds
d → s
Days to Seconds
d → min
Days to Minutes
d → h
Days to Hours
d → wk
Days to Weeks
d → yr
Days to Years
wk → ms
Weeks to Milliseconds
wk → s
Weeks to Seconds
wk → min
Weeks to Minutes
wk → h
Weeks to Hours
wk → d
Weeks to Days
wk → yr
Weeks to Years
yr → ms
Years to Milliseconds
yr → s
Years to Seconds
yr → min
Years to Minutes
yr → h
Years to Hours
yr → d
Years to Days
yr → wk
Years to Weeks
Power
W → kW
Watts to Kilowatts
W → MW
Watts to Megawatts
W → hp
Watts to Horsepower (mechanical)
W → PS
Watts to Metric Horsepower
kW → W
Kilowatts to Watts
kW → MW
Kilowatts to Megawatts
kW → hp
Kilowatts to Horsepower (mechanical)
kW → PS
Kilowatts to Metric Horsepower
MW → W
Megawatts to Watts
MW → kW
Megawatts to Kilowatts
MW → hp
Megawatts to Horsepower (mechanical)
MW → PS
Megawatts to Metric Horsepower
hp → W
Horsepower (mechanical) to Watts
hp → kW
Horsepower (mechanical) to Kilowatts
hp → MW
Horsepower (mechanical) to Megawatts
hp → PS
Horsepower (mechanical) to Metric Horsepower
PS → W
Metric Horsepower to Watts
PS → kW
Metric Horsepower to Kilowatts
PS → MW
Metric Horsepower to Megawatts
PS → hp
Metric Horsepower to Horsepower (mechanical)
Angle
° → rad
Degrees to Radians
° → gon
Degrees to Gradians
° → turn
Degrees to Turns
rad → °
Radians to Degrees
rad → gon
Radians to Gradians
rad → turn
Radians to Turns
gon → °
Gradians to Degrees
gon → rad
Gradians to Radians
gon → turn
Gradians to Turns
turn → °
Turns to Degrees
turn → rad
Turns to Radians
turn → gon
Turns to Gradians
Frequency
Hz → kHz
Hertz to Kilohertz
Hz → MHz
Hertz to Megahertz
Hz → GHz
Hertz to Gigahertz
Hz → rpm
Hertz to Revolutions per Minute
kHz → Hz
Kilohertz to Hertz
kHz → MHz
Kilohertz to Megahertz
kHz → GHz
Kilohertz to Gigahertz
kHz → rpm
Kilohertz to Revolutions per Minute
MHz → Hz
Megahertz to Hertz
MHz → kHz
Megahertz to Kilohertz
MHz → GHz
Megahertz to Gigahertz
MHz → rpm
Megahertz to Revolutions per Minute
GHz → Hz
Gigahertz to Hertz
GHz → kHz
Gigahertz to Kilohertz
GHz → MHz
Gigahertz to Megahertz
GHz → rpm
Gigahertz to Revolutions per Minute
rpm → Hz
Revolutions per Minute to Hertz
rpm → kHz
Revolutions per Minute to Kilohertz
rpm → MHz
Revolutions per Minute to Megahertz
rpm → GHz
Revolutions per Minute to Gigahertz
Fuel Economy
l/100km → mpg (US)
Liters per 100 km to Miles per Gallon (US)
l/100km → mpg (UK)
Liters per 100 km to Miles per Gallon (UK)
l/100km → km/l
Liters per 100 km to Kilometers per Liter
mpg (US) → l/100km
Miles per Gallon (US) to Liters per 100 km
mpg (US) → mpg (UK)
Miles per Gallon (US) to Miles per Gallon (UK)
mpg (US) → km/l
Miles per Gallon (US) to Kilometers per Liter
mpg (UK) → l/100km
Miles per Gallon (UK) to Liters per 100 km
mpg (UK) → mpg (US)
Miles per Gallon (UK) to Miles per Gallon (US)
mpg (UK) → km/l
Miles per Gallon (UK) to Kilometers per Liter
km/l → l/100km
Kilometers per Liter to Liters per 100 km
km/l → mpg (US)
Kilometers per Liter to Miles per Gallon (US)
km/l → mpg (UK)
Kilometers per Liter to Miles per Gallon (UK)