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- Central Intelligence Agency
- The World Factbook 1995
- Appendix F: Weights and Measures
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- Mathematical Notation
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- Mathematical Power Name
- 10^18 or 1,000,000,000,000,000,000 one quintillion
- 10^15 or 1,000,000,000,000,000 one quadrillion
- 10^12 or 1,000,000,000,000 one trillion
- 10^9 or 1,000,000,000 one billion
- 10^6 or 1,000,000 one million
- 10^3 or 1,000 one thousand
- 10^2 or 100 one hundred
- 10^1 or 10 ten
- 10^0 or 1 one
- 10-^1 or 0.1 one-tenth
- 10-^2 or 0.01 one-hundredth
- 10-^3 or 0.001 one-thousandth
- 10-^6 or 0.000 001 one-millionth
- 10-^9 or 0.000 000 001 one-billionth
- 10-^12 or 0.000 000 000 001 one-trillionth
- 10-^15 or 0.000 000 000 000 001 one-quadrillionth
- 10-^18 or 0.000 000 000 000 000 00 one-quintillionth
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- Metric Interrelationships
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- Conversions from a multiple or submultiple to the basic units of meters,
- liters, or grams can be done using the table. For example, to convert from
- kilometers to meters, multiply by 1,000 (9.26 kilometers equals 9,260
- meters) or to convert from meters to kilometers, multiply by 0.001 (9,260
- meters equals 9.26 kilometers).
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- Prefix Symbol Length, weight,
- or capacity Area Volume
- exa E 10^18 10^36 10^54
- peta P 10^15 10^30 10^45
- tera T 10^12 10^24 10^36
- giga G 10^9 10^18 10^27
- mega M 10^6 10^12 10^18
- hectokilo hk 10^5 10^10 10^15
- myria ma 10^4 10^8 10^12
- kilo k 10^3 10^6 10^9
- hecto h 10^2 10^4 10^6
- basic unit - 1 meter, 1 meter^2 1 meter^3
- 1 gram,
- 1 liter
- deci d 10-^1 10-^2 10-^3
- centi c 10-^2 10-^4 10-^6
- milli m 10-^3 10-^6 10-^9
- decimilli dm 10-^4 10-^8 10-^12
- centimilli cm 10-^5 10-^10 10-^15
- micro u 10-^6 10-^12 10-^18
- nano n 10-^9 10-^18 10-^27
- pico p 10-^12 10-^24 10-^36
- femto f 10-^15 10-^30 10-^45
- atto a 10-^18 10-^36 10-^54
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- Equivalents
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- Units Metric Equivalent US Equivalent
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- acre 0.404 685 64 hectares 43,560 feet^2
- acre 4,046,856 4 meters^2 4,840 yards^2
- acre 0.004 046 856 4 0.001 562 5 miles^2,
- kilometers^2 statute
- are 100 meters^2 119.599 yards^2
- barrel
- (petroleum, US) 158.987 29 liters 42 gallons
- (proof spirits, US) 151.416 47 liters 40 gallons
- (beer, US) 117.347 77 liters 31 gallons
- bushel 35.239 07 liters 4 pecks
- cable 219.456 meters 120 fathoms
- chain (surveyor's) 20.116 8 meters 66 feet
- cord (wood) 3.624 556 meters^3 128 feet^3
- cup 0.236 588 2 liters 8 ounces, liquid (US)
- degrees, Celsius (water boils at 100 multiply by 1.8 and add 32
- degrees C, freezes at to obtain degrees F
- 0 degrees C)
- degrees, Fahrenheit subtract 32 and divide water boils at 212 degrees
- by 1.8 to obtain F, freezes at 32 degrees F)
- degrees C
- dram, avdp. 1.771 845 2 grams 0.0625 5 ounces, avdp.
- dram, troy 3.887 934 6 grams 0.125 ounces, troy
- dram, liquid (US) 3.696 69 milliliters 0.125 ounces, liquid
- fathom 1.828 8 meters 6 feet
- foot 30.48 centimeters 12 inches
- foot 0.304 8 meters 0.333 333 3 yards
- foot 0.000 304 8 kilometers 0.000 189 39 miles, statute
- foot^2 929.030 4 centimeters^2 144 inches^2
- foot^2 0.092 903 04 meters^2 0.111 111 1 yards^2
- foot^3 28.316 846 592 liters 7.480 519 gallons
- foot^3 0.028 316 847 meters^3 1,728 inches^3
- furlong 201.168 meters 220 yards
- gallon, liquid (US) 3.785 411 784 liters 4 quarts, liquid
- gill (US) 118.294 118 milliliters 4 ounces, liquid
- grain 64.798 91 milligrams 0.002 285 71 ounces, avdp.
- gram 1,000 milligrams 0.035 273 96 ounces, avdp.
- hand (height of horse) 10.16 centimeters 4 inches
- hectare 10,000 meters^2 2.471 053 8 acres
- hundredweight, long 50.802 345 kilograms 112 pounds, avdp.
- hundredweight, short 45.359 237 kilograms 100 pounds, avdp.
- inch 2.54 centimeters 0.083 333 33 feet
- inch^2 6.451 6 centimeters^2 0.006 944 44 feet^2
- inch^3 16.387 064 centimeters^3 0.000 578 7 feet^3
- inch^3 16.387 064 milliliters 0.029 761 6 pints, dry
- inch^3 16.387 064 milliliters 0.034 632 0 pints, liquid
- kilogram 0.001 tons, metric 2.204 623 pounds, avdp.
- kilometer 1,000 meters 0.621 371 19 miles, statute
- kilometer^2 100 hectares 247.105 38 acres
- kilometer^2 1,000,000 meters^2 0.386 102 16 miles^2,
- statute
- knot (1 nautical
- mi/hr) 1.852 kilometers/hour 1.151 statute miles/hour
- league, nautical 5.556 kilometers 3 miles, nautical
- league, statute 4.828.032 kilometers 3 miles, statute
- link (surveyor's) 20.116 8 centimeters 7.92 inches
- liter 0.001 meters^3 61.023 74 inches^3
- liter 0.1 dekaliter 0.908 083 quarts, dry
- liter 1,000 milliliters 1.056 688 quarts, liquid
- meter 100 centimeters 1.093 613 yards
- meter^2 10,000 centimeters^2 1.195 990 yards^2
- meter^3 1,000 liters 1.307 951 yards^3
- micron 0.000 001 meter 0.000 039 4 inches
- mil 0.025 4 millimeters 0.001 inch
- mile, nautical 1.852 kilometers 1.150 779 4 miles, statute
- mile^2, nautical 3.429 904 kilometers^2 1.325 miles^2, statute
- mile, statute 1.609 344 kilometers 5,280 feet or 8 furlongs
- mile^2, statute 258.998 811 hectares 640 acres or 1 section
- mile^2, statute 2.589 988 11
- kilometers^2 0.755 miles^2, nautical
- minim (US) 0.061 611 52 milliliters 0.002 083 33 ounces, liquid
- or one-sixtieth of a dram
- ounce, avdp. 28.349 523 125 grams 437.5 grains
- ounce, liquid (US) 29.573 53 milliliters 0.062 5 pints, liquid
- ounce, troy 31.103 476 8 grams 480 grains
- pace 76.2 centimeters 30 inches
- peck 8.809 767 5 liters 8 quarts, dry
- pennyweight 1.555 173 84 grams 24 grains
- pint, dry (US) 0.550 610 47 liters 0.5 quarts, dry
- pint, liquid (US) 0.473 176 473 liters 0.5 quarts, liquid
- point (typographical) 0.351 459 8 millimeters 0.013 837 inches
- pound, avdp 453.592 37 grams 16 ounces, avdp
- pound, troy 373.241 721 6 grams 12 ounces, troy
- quart, dry (US) 1.101 221 liters 2 pints, dry
- quart, liquid (US) 0.946 352 946 liters 2 pints, liquid
- quintal 100 kilograms 220.462 26 pounds, avdp.
- rod 5.029 2 meters 5.5 yards
- scruple 1.295 978 2 grams 20 grains
- section (US) 2.589 988 1 kilometers^2 1 mile^2, statute
- or 640 acres
- span 22.86 centimeters 9 inches
- stere 1 meter^3 1.307 95 yards^3
- tablespoon 14.786 76 milliliters 3 teaspoons
- teaspoon 4.928 922 milliliters 0.333 333 tablespoons
- ton, long or
- deadweight 1,016.046 909 kilograms 2,240 pounds, avdp.
- ton, metric 1,000 kilograms 2,204.623 pounds, avdp.
- ton, metric 1,000 kilograms 32,150.75 ounces, troy
- ton, register 2.831 684 7 meters^3 100 feet^3
- ton, short 907.184 74 kilograms 2,000 pounds, avdp.
- township (US) 93.239 572 kilometers^2 36 miles^2, statute
- yard 0.914 4 meters 3 feet
- yard^2 0.836 127 36 meters^2 9 feet^2
- yard^3 0.764 554 86 meters^3 27 feet^3
- yard^3 764.554 857 984 liters 201.974 gallons
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