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Metric to Imperial Conversion Tables


Our handy conversion tables show you the formulas to convert from metric system measurements to the imperial system and visa versa allowing you to do your own calculations for the conversion you need.

Metric System

The metric system is a decimalised system of measurement in the sense that all multiples and submultiples of the base units are factors of powers of ten of the unit. Fractions of a decimal unit are rarely used.

The metric system, and metre was first fully described by Englishman John Wilkins in 1668 in a treatise presented to the Royal Society some 120 years before the French adopted the system. It is believed that the system was transmitted to France from England via the likes of Benjamin Franklin.

In the U.S. Americans frequently spell 'metre' as 'meter', and 'litre' as 'liter'; however 'metre' and 'litre' are the official BIPM names for these units.

Imperial System

Imperial units are the measurement units that were historically used in the British Commonwealth countries. They were very similar, but not identical, to the units that are still predominantly used in the United States. Some of the differences are:

Our handy conversion tables below show you the formulas to convert from metric system measurements to the imperial system and visa versa allowing you to do your own calculations for the conversion you need. Measurement conversions include weight, mass, length, volume, and temperature.

Metric to Imperial Conversion chart
ConvertToMultiply by:
KilometersMiles0.62
KilometersFeet3280.8
MetersFeet3.28
CentimetersInches0.39
MillimetersInches0.039
LitersQuarts1.057
LitersGallons0.264
MillilitersCups0.0042
MillilitersOunces0.0338
CelsiusFahrenheit(Temperature (C) + 32)*9/5
KilogramTons0.0011
KilogramPounds2.2046
GramsOunces0.035
GramsPounds0.002205
MilligramsOunces0.000035

Imperial to Metric Conversion chart
ConvertToMultiply by:
FahrenheitCelsius(Temperature (F) - 32)*5/9
InchesMeters0.0254
InchesCentimeters2.54
InchesMillimeters25.40
FeetMeters0.30
YardsMeters0.91
YardsKilometers0.00091
MilesKilometers1.61
OuncesMilliliters29.57
CupsMilliliters236.6
QuartsLiters0.95
GallonsLiters3.785
OuncesMilligrams28350
OuncesGrams28.35
PoundsKilograms0.454
TonsKilograms907.18

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