Length |
Metric System |
| 1 millimeter1/1,000 meter |
| 1 centimeter1/100 meter |
| 1 decimeter1/10 meter |
| 1 meter (basic unit of length) |
| 1 dekameter10 meters |
| 1 kilometer1,000 meters |
American and British Units |
| 1 inch1/36 yard1/12 foot |
| 1 foot1/3 yard |
| 1 yard (basic unit of length) |
| 1 rod5 1/2 yards |
| 1 furlong220 yards40 rods |
| 1 mile1,760 yards5,280 feet |
| 1 fathom6 feet |
| 1 nautical mile6,076.1 feet |
Conversion Factors |
| 1 centimeter0.39 inch |
| 1 inch2.54 centimeters |
| 1 meter39.37 inches |
| 1 foot0.305 meter |
| 1 meter3.28 feet |
| 1 yard0.914 meter |
| 1 meter1.094 yards |
| 1 kilometer0.62 mile |
| 1 mile1.609 kilometers |
Area |
Metric System |
| 1 square centimeter1/10,000 square meter |
| 1 square decimeter1/100 square meter |
| 1 square meter (basic unit of area) |
| 1 are100 square meters |
| 1 hectare10,000 square meters100 ares |
| 1 square kilometer1,000,000 square meters |
American and British Units |
| 1 square inch1/1,296 square yard1/144 square foot |
| 1 square foot1/9 square yard |
| 1 square yard (basic unit of area) |
| 1 square rod30 1/4 square yards |
| 1 acre4,840 square yards160 square rods |
| 1 square mile3,097,600 square yards640 acres |
Conversion Factors |
| 1 square centimeter0.155 square inch |
| 1 square inch6.45 square centimeters |
| 1 acre0.405 hectare |
| 1 hectare2.47 acres |
| 1 square kilometer0.386 square mile |
| 1 square mile2.59 square kilometers |
Volume and Capacity (Liquid and Dry) |
Metric System |
| 1 cubic centimeter1/1,000,000 cubic meter |
| 1 cubic decimeter1/1,000 cubic meter |
| 1 cubic meter1 stere (basic unit of volume) |
| 1 milliliter1/1,000 liter1 cubic centimeter |
| 1 centiliter1/100 liter |
| 1 deciliter1/10 liter |
| 1 liter1 cubic decimeter (basic unit of capacity) |
| 1 dekaliter10 liters |
| 1 hectoliter100 liters1/10 cubic meter |
American and British Units |
| 1 cubic inch1/46,656 cubic yard1/1,728 cubic foot |
| 1 cubic foot1/27 cubic yard |
| 1 cubic yard (basic unit of volume) |
| 1 U.S. fluid ounce1/128 U.S. gallon1/16 U.S. pint |
| 1 British imperial fluid ounce1/160 imperial gallon1/20 imperial pint |
| 1 pint1/8 gallon1/2 quart |
| 1 quart1/4 gallon |
| 1 U.S. gallon (basic unit of liquid capacity in the United States)231 cubic inches |
| 1 imperial gallon (basic unit of liquid capacity in some Commonwealth nations)277.4 cubic inches |
| 1 dry pint1/64 bushel1/2 dry quart |
| 1 dry quart1/32 bushel1/8 peck |
| 1 peck1/4 bushel |
| 1 U.S. bushel (basic unit of dry capacity in the United States)2,150.4 cubic inches |
| 1 imperial bushel (basic unit of dry capacity in some Commonwealth nations)2,219.4 cubic inches |
Conversion Factors |
| 1 cubic centimeter0.06 cubic inch |
| 1 cubic inch16.4 cubic centimeters |
| 1 cubic yard0.765 cubic meter |
| 1 cubic meter1.3 cubic yards |
| 1 milliliter0.034 fluid ounce |
| 1 fluid ounce29.6 milliliters |
| 1 U.S. quart0.946 liter |
| 1 liter1.06 U.S. quarts |
| 1 U.S. gallon3.8 liters |
| 1 imperial gallon1.2 U.S. gallons4.5 liters |
| 1 liter0.9 dry quart |
| 1 dry quart1.1 liters |
| 1 dekaliter0.28 U.S. bushel |
| 1 U.S. bushel0.97 imperial bushel3.5 dekaliters |
Weight (Mass) |
Metric System |
| 1 milligram1/1,000,000 kilogram1/1,000 gram |
| 1 centigram1/100,000 kilogram1/100 gram |
| 1 decigram1/10,000 kilogram1/10 gram |
| 1 gram1/1,000 kilogram |
| 1 dekagram1/100 kilogram10 grams |
| 1 hectogram1/10 kilogram100 grams |
| 1 kilogram (basic unit of weight or mass) |
| 1 metric ton1,000 kilograms |
American and British Units: Avoirdupois |
| 1 grain1/7,000 pound1/437.5 ounce |
| 1 dram1/256 pound1/16 ounce |
| 1 ounce1/16 pound |
| 1 pound (basic unit of weight or mass) |
| 1 short hundredweight100 pounds |
| 1 long hundredweight112 pounds |
| 1 short ton2,000 pounds |
| 1 long ton2,240 pounds |
American and British Units: Troy and Apothecaries' |
| 1 grain1/7,000 avoirdupois pound1/5,760 troy or apothecaries' pound |
| 1 apothecaries' scruple20 grains1/3 dram |
| 1 pennyweight24 grains1/20 troy ounce |
| 1 apothecaries' dram60 grains1/8 apothecaries' ounce |
| 1 troy or apothecaries' ounce480 grains1/12 troy or apothecaries' pound |
| 1 troy or apothecaries' pound5,760 grains5,760/7,000 avoirdupois pound |
Conversion Factors |
| 1 milligram0.015 grain |
| 1 grain64.8 milligrams |
| 1 gram0.035 avoirdupois ounce |
| 1 avoirdupois ounce28.35 grams |
| 1 troy or apothecaries' pound0.82 avoirdupois pound0.37 kilogram |
| 1 avoirdupois pound1.2 troy or apothecaries' pounds0.45 kilogram |
| 1 kilogram2.205 avoirdupois pounds |
| 1 short ton0.9 metric ton |
| 1 metric ton1.1 short tons |
