SI Prefixes unit converter
Quetta down to quecto — the multiplier ladder itself.
Precision & format
1 T equals
1,000G
All 25 units
- QuettaQ1 × 10⁻¹⁸
- RonnaR1 × 10⁻¹⁵
- YottaY1 × 10⁻¹²
- ZettaZ1 × 10⁻⁹
- ExaE0.000001
- PetaP0.001
- TeraT1
- GigaG1,000
- MegaM1,000,000
- Kilok1,000,000,000
- Hectoh10,000,000,000
- Dekada100,000,000,000
- None—unprefixed1,000,000,000,000
- Decid10,000,000,000,000
- Centic100,000,000,000,000
- Millim1 × 10¹⁵
- Microµ1 × 10¹⁸
- Nanon1 × 10²¹
- Picop1 × 10²⁴
- Femtof1 × 10²⁷
- Attoa1 × 10³⁰
- Zeptoz1 × 10³³
- Yoctoy1 × 10³⁶
- Rontor1 × 10³⁹
- Quectoq1 × 10⁴²
SI Prefixes conversion table
Every unit expressed in nones (—), the SI base for this category.
| Unit | Symbol | 1 unit in — |
|---|---|---|
| Quetta | Q | 1 × 10³⁰ |
| Ronna | R | 1 × 10²⁷ |
| Yotta | Y | 1 × 10²⁴ |
| Zetta | Z | 1 × 10²¹ |
| Exa | E | 1 × 10¹⁸ |
| Peta | P | 1 × 10¹⁵ |
| Tera | T | 1,000,000,000,000 |
| Giga | G | 1,000,000,000 |
| Mega | M | 1,000,000 |
| Kilo | k | 1,000 |
| Hecto | h | 100 |
| Deka | da | 10 |
| Noneunprefixed | — | 1 |
| Deci | d | 0.1 |
| Centi | c | 0.01 |
| Milli | m | 0.001 |
| Micro | µ | 0.000001 |
| Nano | n | 1 × 10⁻⁹ |
| Pico | p | 1 × 10⁻¹² |
| Femto | f | 1 × 10⁻¹⁵ |
| Atto | a | 1 × 10⁻¹⁸ |
| Zepto | z | 1 × 10⁻²¹ |
| Yocto | y | 1 × 10⁻²⁴ |
| Ronto | r | 1 × 10⁻²⁷ |
| Quecto | q | 1 × 10⁻³⁰ |
