Prefix is used to increase or decrease the value of a fundamental or derived unit as per practical requirements
| Multiples |
Submultiples |
| Exa(a) = 1018 |
atto(a) = 10-18 |
| Peta(P) = 1015 |
femto(f) = 10-15 |
| Tera(t) = 1012 |
pico(P) = 10-12 |
| Giga(G) = 109 |
nano(n) = 10-9 |
| Mega(M) = 106 |
micro(μ) = 10-6 |
| Kilo(k) = 103 |
milli(m) = 10-3 |
| Hecto(h) = 102 |
centi(c) = 10-2 |
| Deca(da) = 101 |
deci(d) = 10-1 |
