# Units Of Measurement

For our purposes, and generally in our industry, the following definitions apply:

• A pound refers to avoirdupois pound, which is the common 16 oz pound, used in the United States.
• A ton refers to a metric ton, or tonne (t), which is 1000 kg.We do not use the American Ton or Short Ton (tn), which is 2000 lb.
Volume/Capacity (wet):
• Cubic Centimeter (cm3 or cc) = 1000 mm3
• Cubic Millimeter (mm3) = 0.001 cm3 (cc)
• Cup (c) = 8 fl oz = 236.6 mL
• U.S.Fluid Ounce (fl oz) = 29.574 mL
• Gallon (gal) = 4 qt = 124 fl oz = 3.785 L
• Kiloliter (kL) = 1000 L
• Liter (L) = 1000 mL = 1.057 qt = 33.814 fl oz
• Milliliter (mL) = 0.001 L = .0338 fl oz
• Pint (pt) = 2 c = 16 fl oz
• Quart (qt) = 2 pt = 32 fl oz
• Tablespoon (tbsp) = 3 tsp = 0.5 fl oz = 1/16 c = 14.8 mL
• Teaspoon (tsp) = 0.167 fl oz = 4.9 mL

Weight:

• Gram (g) = 1000 mg = 0.002 lb = 0.035 oz
• Kilogram (kg) = 1000 g = 2.205 lb = 35.28 oz
• Metric Ton or Tonne (t) = 1000 kg = 2204.623 lb (also sometimes referred to as ton)
• Milligram (mg) = 35.274 x 10-6 oz
• Ounce (oz) = 28.350 g
• Pound (lb) = 16 oz = 453.592 g
• Ton, American Ton, or Short Ton (tn) = 2000 lb (we do not use this definition for ton-see metric ton)

Temperature:

• Degrees Celsius (°C)
• Degrees Fahrenheit (°F)
• Kelvin (K) (Formerly Degrees Kelvin, °K)
• Boiling Temperature of Water = 100 °C = 212 °F = 373.15 K
• Freezing Temperature of Water = 0 °C = 32 °F = 273.15 K
• Triple point of Water = 0.01 °C = 32.018 °F = 273.16 K

Temperature Conversions:
°C = (°F – 32) x 5/9 = K + 273.15

• To convert from °C to °F:
— Multiply times 9/5 and add 32
• To convert from °C to K:

°F = (°C x 9/5) + 32 = [(K – 273.15) x 9/5] + 32

• To convert from °F to °C:
— Subtract 32 and multiply times 5/9
• To convert from °F to K:
— Subtract 32, multiply times 5/9, and add 273.15

K = °C + 273.15 = [(°F – 32) x 5/9] = 273.15

• To convert from K to °C:
— Subtract 273.15
• To convert from K to °F:
— Subtract 273.15, multiply times 9/5, and add 32

Length:

• Centimeter (cm) = 1000 mm = .01 m = 0.394 in
• Foot or International Foot (¢ or ft) = 12 in = 30.48 cm
• Inch (” or in) = 2.54 cm
• Kilometer (km) = 1000 m = 0.621 mi
• Meter (m) = 1000 cm = 39.370 in = 3.280 ft =1.094 yd
• Mile (mi) = 5280 ft = 1760 yd = 1.609 km
• Millimeter (mm) = 0.1 cm = 0.001 m = 0.039 in
• Yard (yd) = 36 in = 3 ft = 91.44 cm = 0.914 m