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
deka da 10 +1 10 +2 10 +3
basic unit - 1 meter, 1 meter2 1 meter3
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

========================================================================

EQUIVALENTS

The exponents 2 and 3 are used for square and cubic, respectively.

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 0.001 562 5 miles2,
kilometers2 statute
are 100 meters2 119.599 yards2
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 meters3 128 feet3
cup 0.236 588 2 liters 8 ounces, liquid (US)
degrees, celsius (water boils at 100 multiply by 1.8 and add
degrees C, freezes at 32 to obtain degrees F
0 degrees C)
degrees, fahrenheit subtract 32 and divide (water boils at 212
b