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Weights & Measures in the USA
While the United States is slowly moving towards the metric system, many weights
and measurements still follow the Imperial System.
Distance and Height
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Unit
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Imperial Equivalent
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Metric Equivalent
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inches (in)
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1 in = 2.54 cm
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feet (ft)
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1 ft = 12 in
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1 ft = 30.48 cm
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yards (yd)
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1 yd = 3 ft
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1 yd = 91.44 cm
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miles (mi)
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1 mi = 1760 yd
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1 mi = 1.61 km
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Weight
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Unit
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Imperial Equivalent
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Metric Equivalent
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ounces (oz)
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1 oz = 28.35 g
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pounds (lb)
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1 lb = 16 oz
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1 lb = 453.6 g
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tons
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1 ton = 2000 lbs
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1 ton = 907 kg
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Liquid Volume
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Unit
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Imperial Equivalent
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Metric Equivalent
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US fluid ounces (US fluid oz)
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1 US fluid oz = 29.57 mL
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US pints
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1 US pint = 16 US fluid oz
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1 US pint = 0.47 L
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US quarts
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1 US quart = 2 pints
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1 US quart = 0.95 L
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US gallons
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1 US gallon = 2 quarts = 4 pints
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1 US gallon = 3.79 L
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TEMPERATURES
The United States measures and reports temperature in degrees Fahrenheit (°F).
To convert from Fahrenheit to Celsius (°C), subtract 32 and divide by 1.8.
In order to convert from Celsius to Fahrenheit, multiply by 1.8 and add 32.
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Fahrenheit (°F)
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Celsius (°C)
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Description
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212
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100
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Water Boils
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98.6
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37
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Body Temperature
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72
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22
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Room Temperature
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32
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0
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Water Freezes
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-40
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-40
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Fahrenheit=Celsius
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SPEED
Land speeds in the United States are measured in miles per hour (mph). In order
to be safe, check with visitor information, hotel reception, rental agents (if
renting a car) and the like for speed limit information and always obey posted
limits.
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mph
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km/h
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1
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1.61
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15
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24
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25
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40
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35
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56
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45
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72
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55
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88
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65
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105
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75
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120
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