METRIC UNITS OF MEASUREMENT Linear Measure (Length) 1 centimetre (cm) = 10 millimetres (mm) 1 metre (m) = 100 centimetres (cm) 1 metre (m) = 1 000 millimetres 1 kilometre (km) = 1 000 metres 1 millimetre (mm) = 0,1 centimetre (cm) (+ 10) 1 cm = 10 mm (x 10) 1 centimetre (cm) = 0,01 metre (m) (+ 100) 1 m = 100 cm (x 100) 1 metre (m) = 0,001 kilometres (km) (+ 1 000) 1 km = 1 000 m (x 1 000) Liquid Volume Measure 1 litre (l) = 1 000 millilitres 1 kilolitre (kl) = 1 000 litres 1 millilitre (ml) = 0,001 litre (I) (+ 1 000) 1 litre = 0,001 kilolitre (+ 1 000) Weight 1 gram (g) = 1 000 milligrams 1 kilogram (kg) = 1 000 grams 1 metric ton (t) = 1 000 kilograms 1 gram (g) = 0,001 kilogram (kg) (+ 1 000) 1 kilogram (kg) = 0,001 (metric) ton (+ 1 000) Time 1 millisecond = 0,001 second 1 minute = 60 seconds 1 hour = 60 minutes 15 minutes = 0,25 hour (1/4 hour) 30 minutes = 0,5 hour (1/2 hour) 45 minutes = 0,75 hour (3/4 hour) 1 day = 24 hours 1 week = 7 days 1 year = 12 months 1 quarter = 3 months 1 decade = 10 years 1 century = 100 years 1 millennium = 1 000 years 1 l = 1 000 ml (x 1 000) 1 kilolitre = 1 000 l (x 1 000) 1 kg = 1 000 g (x 1 000) 1 ton = 1 000 kg (x 1 000) Refer also to: https://en.wikipedia.org/wiki/Introduction to the metric system When writing numerals, use the space as thousand separator, i.e. after every THREE numbers 123 456 789 Write neatly in columns to avoid adding errors 987 654 321 --