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Metric
to Standard Conversions
Length
1 millimeter (mm) = 0.0394 in
1centimeter (cm) = 10 mm = 0.3937 in
1meter (m) = 1000 mm = 3.2808 ft
1meter (m) = 1000 mm = 1.0936 yd
1 kilometer (km) = 1000 m = 0.6214 mi
Area
1 square centimeter = 100 sq mm = 0.155 sq in
1 square meter = 10,000 sq cm = 10.764 sq ft
1 square meter = 10,000 sq cm = 1.196 sq yards
1 hectare (ha) = 10,000 sq meter = 2.4711 acres
1 sq kilometer = 100 ha = 0.3861 sq miles
Weight
1 milligram (mg) = 0.0154 grain
1 gram (g) = 1000 mg = 0.0353 oz
1 kilogram (kg) = 1000 g = 2.2046 lb
1 tonne = 1000 kg = 1.1023 short tons
1 tonne = 0.9842 long ton
Volume
1 cu centimeter = 0.061 cu in
1 cu decimeter = 1000 cu cm= 0.353 cu ft
1 cu meter = 1000 cu dm = 1.3079 cu yard
1 liter (L) = 1 cu dm = 0.2642 gal
1 cubic meter = 1000 L = 264.2 gal
1 cubic meter = = 35.71 cu ft
1 L/sec = 22,825 gal/day
Temperature
Celcius = 5/9 (degrees Fahrenheit -32)
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Standard
to Metric Conversions
Length
1 inch (in) = 2.54 cm
1 foot (ft) = 12 in = 0.3048 m
1 yard (yd) = 3 ft = 0.9144 m
1 mile (mi) = 1760 yd = 1.6093 km
1 nautical mile = 1.152 mi = 1.853 km
Area
1 square inch = 6.4516 sq cm
1 square foot = 144 sq in = 0.093 sq meters
1 square yard = 9 sq ft= 0.8361 sq meters
1 acre = 4840 sq yards = 4046.86 sq meters
1 square mile = 640 acre = 259 sq km
Weight
1 ounce (oz) = 437.5 grains = 28.35 g
1 pound (lb) = 16 oz = 0.4536 kg
1 short ton = 2000 lb = 0.9072
1 long ton = 2240 lb = 1.0161
Volume
1 cubic inch = 16.387 cu cm
1 cubic foot = 1728 cu in = 0.0283 cu meters
1 cubic yard = 27 cu ft = 0.7646 cu meters
1 liquid pint = 16 fl oz = 0.4732 L
1 liquid quart (qt) = 2 pt = 0.946 L
1 gallon (gal) = 4 qt = 3.7853 L
1 million gal (MG) = 3785.3 cu meters
1 cu ft/sec = 28.31 L/sec
1 million gal/day (MGD) = 43.81 L/sec
1 MGD = 41,667 gal/hr = 157.7 cu meters/hr
Temperature
Fahrenheit = (9/5)(degrees Celcius) + 32
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