These are all rough approximations; for more accurate information, see Conversion of units.
Volume:
1 liter 2 pints half liter 1 pint 4 liters 1 gallon
Length:
1 inch 2.5 cm 4 inch 10 cm 3 cm just over 1 inch (just over, round down conversion) 10 cm 4 inch (just under, round up conversion) 1 meter 1 yard (just over) 1 meter 3 feet 30 cm 1 foot 1 km half a mile (just over, round down conversions) 3 miles 5 km (just under, round up conversions)
Mass:
1 kg 2 pounds 1 lb half a kilogram
Temperatures:
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