1. Length

1 centimetre (cm) = 0.4 inch

1 inch (in.) = 2.54 cm

1 metre (m) = 39.37 inches

1 foot (ft.) = 30.48 cm

1 kilometre (km) = 0.62 mile

1 mile (mi.) = 1.61 km

2. Area

1 cm² = 0.155 sq. in.

1 sq. in. = 6.45 cm²

1 m² = 10.76 sq. ft.

1 sq. ft. = 929 cm²

1 hectare (ha) = 2.47 acres

1 acre = 0.4 ha

3. Volume

1 cm² = 0.06 cu. in.

1 cu. in. = 16.39 cm²

1 litre (1) = 0.22 gallon UK 1 gallon (gal.) UK = 4.541

1 litre (1) = 0.26 gallon US

1 gal. US. = 3.78 1

4. Weight

1 gramme (g) = 0.035 ounce

1 ounce (oz.) = 28.35 g

1 kilogramme (kg) = 2.2 pounds

1 pound (lb.) = 453.6 g

5. Temperature

(1° Celsius (C) = 1.8° Fahrenheit (F.))

(1° Fahrenheit (F.) = 0.56° Celsius (C))

0° C = 32° F.

20° C = 68° F.

30° C = 86° F.

100° C = 212° F.