Metric Units
Length
Units of measurement:
Millimetre (mm)
Centimetre (cm)
Metre (m)
Kilometre (km)
Conversions:
10 mm = 1 cm
100 cm = 1 m
1000 m = 1km
Weight
Units of measurement:
Milligram (mg)
Gram (g)
Kilogram (kg)
Tonne (t)
Conversions:
1000 mg = 1 g
1000 g = 1 kg
1000 kg = 1 t
Capacity
Units of measurement:
Millilitre (ml)
Centilitre (cl)
Litre (l)
Conversions:
10 ml = 1 cl
1000 ml = 1l
100 cl = 1 l
Converting units
If converting from small units to large units (e.g. g to kg) divide
If converting from large units to small units (e.g. km to m) multiply
Examples:
400 cm = 4 m (÷ 100)
4500 g = 4.5 kg (÷ 1000)
6 l = 600 cl (x 100)
50 cm = 500 mm (x 10)
Imperial Units
Length
Units of measurement:
inch (in)
foot/feet (ft)
yard (yd)
Conversions:
12 in = 1 ft
3 ft = 1 yd
Weight
Units of measurement:
ounce (oz)
pound (lb)
stone (st)
Conversions:
16 oz = 1 lb
14 lb = 1 st
Capacity
Units of measurement:
fluid ounce (fl)
pint (pt)
gallon (gl)
Conversions:
20 fl = 1 pt
8 pt = 1 gl
Metric to Imperial
Length
2.5 cm ≈ 1 in
30 cm ≈ 1 ft
1 m ≈ 39 in
8 km ≈ 5 miles
Weight
25 g ≈ 1 oz
1 kg ≈ 2.2 lb
Capacity
1 l ≈ 1.75 pt
4.5 l ≈ 1 gl
