CONVERSION FACTORS 



ENGLISH 



METRIC 



LENGTH 



1 inch (in) 

 1 inch (in) 

 1 foot (ft) 

 1 yard (yd) 

 1 mile (mi) 

 1 mile (mi) 

 1 mile (mi) 

 1 nautical mile 

 (naut. mi) 

 1 nautical mile 

 (naut. mi) 



1 square foot (ft^) 

 1 square yard (yd^) 

 1 square mile (mi^) 

 1 acre (a) 



2.540 centimeters 

 25.400 millimeters 

 0.305 meter 

 0.914 meter 

 1.609 kilometers 

 1,609.344 meters 

 5,280 feet 



1,852 meters 



6,076 feet 



AREA 



0.093 square meter 

 0.836 square meter 

 2.590 square kUometers 

 0.404 hectare 



VOLUME AND CAPACITY 



1 cubic foot (ft^) 

 1 cubic foot (ft^) 

 1 gallon (gal) 



= 0.0283 cubic meter 

 = 0.0000230 acre-feet 

 = 3.785 liters 



VELOCITY 



1 foot/second (ft/sec) 



1 foot/second (ft/sec) 



1 cubic foot/second 



(ft^/sec) 



1 mile/hour (mi/hr) 



1 mile/hour (mi/hr) 



1 knot (kn) 



0.682 mile/hour 

 1.097 kUometers/hour 



0.0283 cubic meter/second 

 1.467 feet/second 

 0.447 meter/second 

 1 nautical mile/hour 



TEMPERATURE 



degrees Fahrenheit (°F) = 9/5 (°C) + 32 

 MASS AND ENERGY 



1 ounce (oz) 

 1 ounce (oz) 

 1 pound (lb) 

 1 short ton (ton) 

 1 Btu 



= 28,350 milligrams 



= 28.350 grams 



= 0.454 kilograms 



= 0.907 tonne 



= 0.252 kilocalories 



1 centimeter (cm) 

 1 milhmeter (mm) 

 1 meter (m) 

 1 meter (m) 

 1 meter (m) 

 1 meter (m) 

 I kilometer (km) 

 1 kilometer (km) 

 1 kilometer (km) 



1 square meter (m^) 



1 square meter (m^) 



1 square kilometer 



(km^) 



1 hectare (ha) 



= 0.394 inch 



= 0.0394 inch 



= 3.281 feet 



= 1.094 yards 



= 39.370 inches 



= 100 centimeters 



= 0.621 mile 



= 1000 meters 



= 3,280.840 feet 



AREA 



= 10.764 square feet 

 = 1.196 square yards 



= 0.386 square mile 

 = 2.471 acres 



VOLUME AND CAPACITY 



1 cubic meter (m^) 

 1 cubic meter (m') 

 1 liter (1) 



= 35.315 cubic feet 



= 264.172 gallons (U.S.) 



= 0.264 gaUon (U.S.) 



VELOCITY 



1 meter/second 



(m/sec) 



1 meter/second 



(m/sec) 



1 cubic meter/second 



(mJ'/sec) 



1 kilometer/hour 



(km/hr) 



1 kilometer/hour 



(km/hr) 



= 3.600 kilometers/hour 



= 2.237 miles/hour 



= 35.315 cubic feet/second 



= 0.91 1 foot/second 



= 0.278 meter/second 



TEMPERATURE 



degrees Celsius (°C) = 5/9 (°F - 32) 

 MASS AND ENERGY 



1 milligram (mg) 



1 gram (g) 



1 kilogram (kg) 



1 tonne (t) 



1 tonne (t) 



1 kilocalorie (kcal) 



= 0.0000353 ounces 



= 0.0353 ounces 



= 2.205 pounds 



= 2,205 pounds 



= 1.102 short tons 



= 3.968 Btu 



XVI 



