The International System of Units (SI) uses prefixes to denote decimal or power of ten multiples and submultiples of its base units. Here’s a list of common SI prefixes:
- Yotta (Y) = (10^{24}) or 1,000,000,000,000,000,000,000,000
- Zetta (Z) = (10^{21}) or 1,000,000,000,000,000,000,000
- Exa (E) = (10^{18}) or 1,000,000,000,000,000,000
- Peta (P) = (10^{15}) or 1,000,000,000,000,000
- Tera (T) = (10^{12}) or 1,000,000,000,000
- Giga (G) = (10^{9}) or 1,000,000,000
- Mega (M) = (10^{6}) or 1,000,000
- Kilo (k) = (10^{3}) or 1,000
- Hecto (h) = (10^{2}) or 100
- Deca (da) = (10^{1}) or 10
For values less than one:
- Deci (d) = (10^{-1}) or 0.1
- Centi (c) = (10^{-2}) or 0.01
- Milli (m) = (10^{-3}) or 0.001
- Micro (μ) = (10^{-6}) or 0.000001
- Nano (n) = (10^{-9}) or 0.000000001
- Pico (p) = (10^{-12}) or 0.000000000001
- Femto (f) = (10^{-15}) or 0.000000000000001
- Atto (a) = (10^{-18}) or 0.000000000000000001
- Zepto (z) = (10^{-21}) or 0.000000000000000000001
- Yocto (y) = (10^{-24}) or 0.000000000000000000000001
These prefixes help to simplify and standardize measurements, making it easier to compare and convert between different scales.