Quecto (q)
The SI prefix quecto (q): a factor of 10⁻³⁰, which is one nonillionth (10⁻³⁰).
What is a quecto unit?
- Symbol
- q
- Quantity
- SI Prefixes
- Unit system
- SI
- Definition
- The SI prefix quecto (q): a factor of 10⁻³⁰, which is one nonillionth (10⁻³⁰).
- Exact
- Yes, the value is exact by definition
- Source
- SI Brochure, 9th edition (BIPM, 2019)
Common applications
The smallest SI prefix, added in 2022. An electron has a mass of about 910 quectograms (9.1 × 10⁻²⁸ g).
Quecto in other si prefixes units
- 1 q = 1e-60 QQuetta
- 1 q = 1e-57 RRonna
- 1 q = 1e-54 YYotta
- 1 q = 1e-51 ZZetta
- 1 q = 1e-48 EExa
- 1 q = 1e-45 PPeta
- 1 q = 1e-42 TTera
- 1 q = 1e-39 GGiga
- 1 q = 1e-36 MMega
- 1 q = 1e-33 kKilo
- 1 q = 1e-32 hHecto
- 1 q = 1e-31 daDeca
- 1 q = 1e-29 dDeci
- 1 q = 1e-28 cCenti
- 1 q = 1e-27 mMilli
- 1 q = 1e-24 µMicro
- 1 q = 1e-21 nNano
- 1 q = 1e-18 pPico
- 1 q = 1e-15 fFemto
- 1 q = 1e-12 aAtto
- 1 q = 1e-9 zZepto
- 1 q = 0.000001 yYocto
- 1 q = 0.001 rRonto
- 1 q = 1e-30 ×1Base unit (no prefix)
Quecto quick reference
| Quecto | Kilo | Milli | Quetta |
|---|---|---|---|
| 1 q | = 1e-33 k | = 1e-27 m | = 1e-60 Q |
| 10 q | = 1e-32 k | = 1e-26 m | = 1e-59 Q |
| 100 q | = 1e-31 k | = 1e-25 m | = 1e-58 Q |
| 1000 q | = 1e-30 k | = 1e-24 m | = 1e-57 Q |
Where the quecto unit fits
The next larger si prefixes unit is the ronto unit (r). 1 q = 0.001 r, and 1 r = 1000 q.
Frequently asked questions
- How many kilo units are in one quecto unit?
- One quecto unit = 1e-33 k (kilo units).
- How many milli units are in one quecto unit?
- One quecto unit = 1e-27 m (milli units).
- How many quetta units are in one quecto unit?
- One quecto unit = 1e-60 Q (quetta units).