Code | Prefix | Power of 10 Linear |
Power of 10 Square |
Power of 10 Cubic |
Equlivalent Part/Fold |
---|---|---|---|---|---|
Googol | 100 | 200 | 300 | 10^{100}, Googolfold | |
Y | Yotta | 24 | 48 | 72 | 10^{24}, Septillionfold |
Z | Zetta | 21 | 42 | 63 | 10^{21}, Sextillionfold |
E | Exa | 18 | 36 | 54 | 10^{18}, Quintillionfold |
P | Petra | 15 | 30 | 45 | 10^{15}, Quadrillionfold |
T | Tera | 12 | 24 | 36 | 10^{12}, Trillionfold |
G | Giga | 9 | 18 | 27 | 1,000,000,000; Billionfold |
M | Mega | 6 | 12 | 18 | 1,000,000; Millionfold |
Myria | 4 | 8 | 12 | 10,000, Ten Thousandfold | |
k | Kilo | 3 | 6 | 9 | 1000, Thousandfold |
h | Hecto | 2 | 4 | 6 | 100, Hundredfold |
da | Deca | 1 | 2 | 3 | 10, Tenfold |
Nona | 9, Ninefold | ||||
Octa | 8, Eightfold | ||||
Septa | 7, Sevenfold | ||||
Hexa | 6, Sixfold | ||||
Quinte | 5, Fivefold | ||||
Quadri | 4, Fourfold | ||||
Tri | 3, Threefold | ||||
Bi | 2, Twofold | ||||
Uni | 1, whole | ||||
Semi | 1/2, half part | ||||
Tetarto | 1/4, fourth part | ||||
d | Deci | -1 | -2 | -3 | 1/10, tenth part |
c | Centi | -2 | -4 | -6 | 1/100, hundredth part |
m | Milli | -3 | -6 | -9 | 1/1000, thousandth part |
u | Micro | -6 | -12 | -18 | 10^{-6}, millionth part |
n | Nano | -9 | -18 | -27 | 10^{-9}, billionth part |
p | Pico | -12 | -24 | -36 | 10^{-12}, trillionth part |
f | Femto | -15 | -30 | -45 | 10^{-15}, quadrillionth part |
a | Atto | -18 | -36 | -54 | 10^{-18}, quintillionth part |
z | Zepto | -21 | -42 | -63 | 10^{-21}, sextillionth part |
y | Yocto | -24 | -48 | -72 | 10^{-24}, septillionth part |
To convert from prefixed-unit to basic unit, multiply by 10 to its power (reverse of above, multiply by 10 to the 3rd power or 10^{3}to return to meters.
To go from one prefix to another (Mega to kilo), multiply by the difference of powers of 10 (former minus latter power of 10).
Mega = 10^{6}, kilo = 10^{3}, difference is 10^{3} (use that figure to multiply with)
Centi = 10^{-2}, kilo = 10^{3}, difference is 10^{5} (multiply using this figure)
All units are converted to basic or common units before conversion takes place.