Cooking weights and measures
In recipes, quantities of ingredients may be specified by mass, by volume, or by count.
Measuring spoons (metric) – 1 mL, 5 mL, 15 mL, 50 mL, 100 mL, 125 mL
Measuring spoons (customary units)
The imperial system of units, imperial system or imperial units is the system of units first defined in the British Weights and Measures Act 1824 and continued to be developed through a series of Weights and Measures Acts and amendments.
The former Weights and Measures office in Seven Sisters, London (590 Seven Sisters Road)
Imperial standards of length 1876 in Trafalgar Square, London
A baby bottle that measures in three measurement systems—metric, imperial (UK), and US customary
A one US gallon gas can purchased near the US-Canada border showing equivalences in imperial gallons and litres