9. METRIC & STANDARD SYSTEM
INTERMEDIATE
INTERMEDIATE
9. METRIC AND STANDADRD SYSTEM
Units of measurement and equivalences.
In most countries, when we measure length, weight, temperature, etc, we use the
Metric system. The units of measurement in the Metric system are, among others:
metre, kilogram, Celsius, etc.
However, in countries such as the United States or the United Kingdom, they use
the Standard or Imperial system, with different units of measurement.
These are the most common units of measurement and the equivalences in both
systems:
• Units of length:
Standard systemMetric system
1 inch
2.54 cm
1 foot (12 inches)
30.48 cm
1 yard (3 feet)
91.44 cm
1 mile (1760 yards)
1609.3 m
• Units of Weight
Standard systemMetric system
1 stone (UK)
6.35 kg
1 pound
0.453 kg
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9. METRIC & STANDARD SYSTEM
INTERMEDIATE
INTERMEDIATE
9. METRIC AND STANDADRD SYSTEM
• Units of capacity.
Many of these units have the same name in UK and US, but refer to different
amounts:
Standard systemMetric system
1 pint (UK)
568.1 ml
1 pint (US)
473.2 ml
1 gallon (=8 pints) - UK
1 gallon - US
4.54 l
3. 78 l
• Temperature.
In the Metric system, the unit for measuring temperature is the degree Celsius,
whereas in the Standard system, the common unit of temperature is the degree
Farenheit.
-The world’s coldest desert is Antarctica, and its mean annual temperature is
-20ºCelsius.
-That’s -4º Farenheit.
How do we calculate the equivalent?
ºF= ºC x 1.8 + 32
->
ºC= (ºF - 32) / 1.8
->
-20ºC x 1.8 + 32 = -4ºF
-4ºF - 32 / 1.8 = -20ºc
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