Equivalents
|
Unit
|
Metric Equivalent
|
US Equivalent
|
|
acre
|
0.404 685 64 hectares
|
43,560 feet2
|
acre
|
4,046.856 4 meters2
|
4,840 yards2
|
acre
|
0.004 046 856 4 kilometers2
|
0.001 562 5 miles2, statute
|
are
|
100 meters2
|
119.599 yards2
|
barrel (petroleum, US)
|
158.987 29 liters
|
42 gallons
|
barrel (proof spirits, US)
|
151.416 47 liters
|
40 gallons
|
barrel (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 meters3
|
128 feet3
|
cup
|
0.236 588 2 liters
|
8 ounces, liquid
|
degrees, celsius
|
(water boils at 100°C, freezes at 0°C)
|
multiply by 1.8 and add 32 to obtain °F
|
degrees, fahrenheit
|
subtract 32 and divide by 1.8 to obtain °C
|
(water boils at 212°F, freezes at 32°F)
|
dram, avoirdupois
|
1.771 845 2 grams
|
0.062 5 ounces, avoirdupois
|
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
|
foot2
|
929.030 4 centimeters2
|
144 inches2
|
foot2
|
0.092 903 04 meters2
|
0.111 111 1 yards2
|
foot3
|
28.316 846 592 liters
|
7.480 519 gallons
|
foot3
|
0.028 316 847 meters3
|
1,728 inches3
|
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 meters2
|
2.471 053 8 acres
|
hundredweight, long
|
50.802 345 kilograms
|
112 pounds, avoirdupois
|
hundredweight, short
|
45.359 237 kilograms
|
100 pounds, avoirdupois
|
inch
|
2.54 centimeters
|
0.083 333 33 feet
|
inch2
|
6.451 6 centimeters2
|
0.006 944 44 feet2
|
inch3
|
16.387 064 centimeters3
|
0.000 578 7 feet3
|
inch3
|
16.387 064 milliliters
|
0.029 761 6 pints, dry
|
inch3
|
16.387 064 milliliters
|
0.034 632 pints, liquid
|
kilogram
|
0.001 tons, metric
|
2.204 623 pounds, avdp.
|
kilometer
|
1,000 meters
|
0.621 371 19 miles, statute
|
kilometer2
|
100 hectares
|
247.105 38 acres
|
kilometer2
|
1,000,000 meters2
|
0.386 102 16 miles2, statute
|
knot (1 nautical mi/hr)
|
1.852 kilometers/hour
|
1.151 statute miles/hour
|
league, nautical
|
5.559 552 kilometers
|
3 miles, nautical
|
league, statute
|
4.828 032 kilometers
|
3 miles, statute
|
|