Article
Both metric (SI units) and imperial units of measurement are used in English-speaking countries. The metric system is to be preferred in scientific contexts. However, the imperial system is still commonly used in everyday life.
Dans les pays anglophones on utilise aussi bien le système métrique (SI units) que le système impérial. Le système métrique est utilisé de préférence dans le contexte scientifique. Toutefois, le système impérial est encore utilisé couramment dans la vie quotidienne.
Taille / Height
|
non-metric |
metric equivalent |
|
|
inch (" / in) |
≈2.54 cm |
12 inches=1 foot |
|
foot (' / ft) |
≈30.48 cm |
3 feet=1 yard |
Surface / Area
|
non-metric |
metric equivalent |
|
|
square inch |
≈6.5 cm2 |
144 sq inches=1 sq foot |
|
square foot |
≈930 cm2 ≈0.09 m2 |
9 sq feet=1 sq yard |
|
square yard |
≈0.84 m2 |
|
|
square mile |
≈2.59 km2 |
|
|
acre |
≈4,050 m2≈0.405 hectares |
1 acre=4,840 sq yards |
Liquides / Liquid Volume
GB
|
non-metric |
metric equivalent |
|
|
fluid ounce (fl oz) |
≈2.85 cc |
20 fl oz=1 pint |
|
pint (pt) |
≈0.57 litres |
8 pints=1 gallon |
|
gallon (gal) |
≈4.55 litres |
|
US
|
non-metric |
metric equivalent |
|
|
fluid ounce (fl oz) |
≈2.96 cc |
16 fl oz=1 pint |
|
Pint |
≈0.47 litres |
8 pints=1 gallon |
|
gallon |
≈3.79 litres |
|
Poids / Weight
|
non-metric |
metric equivalent |
|
|
ounce (oz) |
≈28.35 g |
16 oz=1 lb |
|
pound (lb) |
≈0.45 kg |
14 lbs=1 st |
|
stone (st) |
≈6.35 kg |
160 st or 2240 lbs=1 ton |
Pression / Pressure
|
1 Pound per square inch (PSI) |
≈0.07 kg/cm2 (0.07 bar) |
|
1 Kg/cm2 (1 bar) |
=100 kPa≈750 mmHg |
Température / Temperature
|
|
freezing point |
normal body temperature |
high fever |
boiling point |
|
°Fahrenheit (°F) |
32°F |
98.6°F |
104°F |
212°F |
|
°Celsius (°C) |
0°C |
37°C |
40°C |
100°C |
Conversion: (°Cx9/5)+32=°F (°F–32)x5/9=°C