SI Prefix Converter
Convert between SI metric prefixes — from yotta (10²⁴) to yocto (10⁻²⁴). Enter a value in any prefix and instantly see its equivalent in all others.
Common SI Prefixes Conversions
| From | To |
|---|---|
| Yotta (Y) | 10²⁴ |
| Zetta (Z) | 10²¹ |
| Exa (E) | 10¹⁸ |
| Peta (P) | 10¹⁵ |
| Tera (T) | 10¹² |
| Giga (G) | 10⁹ |
| Mega (M) | 10⁶ |
| Kilo (k) | 10³ |
| Hecto (h) | 10² |
| Deca (da) | 10¹ |
| Base | 10⁰ |
| Deci (d) | 10⁻¹ |
| Centi (c) | 10⁻² |
| Milli (m) | 10⁻³ |
| Micro (µ) | 10⁻⁶ |
| Nano (n) | 10⁻⁹ |
| Pico (p) | 10⁻¹² |
| Femto (f) | 10⁻¹⁵ |
SI Prefixes Unit Definitions
- Kilo (k)
- 10³ = 1,000
- Mega (M)
- 10⁶ = 1,000,000
- Giga (G)
- 10⁹
- Milli (m)
- 10⁻³
- Micro (µ)
- 10⁻⁶
- Nano (n)
- 10⁻⁹
Frequently Asked Questions
How many nano in one micro?
There are 1,000 nanounits in one microunit (10⁻⁶ ÷ 10⁻⁹ = 10³).
What prefix means one billion?
Giga (G) = 10⁹. One gigabyte = 1,000,000,000 bytes (or 2³⁰ = 1,073,741,824 bytes in binary).