| Y (yotta) | x1000000000000000000000000 (trillion of trillions times = trillion trillion times, with 24 zeros, 1024) |
| Z (zetta) | x1000000000000000000000 (billion of trillions times = billion trillion times, with 21 zeros, 1021) |
| E (exa) | x1000000000000000000 (billion of billions times = billion billions times, with 18 zeros, 1018) |
| P (peta) | x1000000000000000 (million of billions times = million billion times, with 15 zeros, 1015) |
| T (tera) | x1000000000000 (trillion times= million of millions times = million million times, with 12 zeros, 1012) |
| G (giga) | x1000000000 (billion times, with 9 zeros, 109) |
| M (mega) | x1000000 (million times, with 6 zeros, 106) |
| k (kilo) | x1000 (thousand times, with 3 zeros, 103) |
| h (hecto) | x100 (hundred times, with 2 zeros, 102) |
| da (deca) | x10 (ten times, with one zero, 101) |
| d (deci) | x0.1 (one tenth times, 10-1) |
| c (centi) | x0.01 (one hundredth times, 10-2) |
| m (milli) | x0.001 (one thousandth times, 10-3) |
| μ (micro) | x0.000001 (one millionth times, 10-6) |
| n (nano) | x0.000000001 (one billionth times, 10-9) |
| p (pico) | x0.000000000001 (one trillionth times, 10-12) |
| f (femto) | x0.000000000000001 (one million billionth times, 10-15) |
| a (atto) | x0.000000000000000001 (one billion billionth times, 10-18) |
| z (zepto) | x0.000000000000000000001 (one billion trillionth times, 10-21) |
| y (yocto) | x0.000000000000000000000001 (one trillion trillionth times, 10-24) |
