Mass, Capacity, Length

Current M.K.S. system (metre, kilogram, second):

• Mass: kilogram (kg) [notice not gram]

• Volume & Capacity: Litre (L) [not a true SI unit but specially authorised]

• Length: metre (m)

Conversion factors from Imperial to S.I.

Mass:

S.I.	Imperial
1 gram	0.0026 pounds
373 grams	1 pound

Volume & Capacity: Litre (L)

S.I.	Imperial
1 litre	0.21 gallons
4.54 litres	1 gallon

Length:

S.I.	Imperial
1 metre	39.37 inches
0.0254 metres	1 inch