Kilo (k)
The SI prefix kilo (k): a factor of 10³, which is one thousand (10³).
What is a kilo unit?
- Symbol
- k
- Quantity
- SI Prefixes
- Unit system
- SI
- Definition
- The SI prefix kilo (k): a factor of 10³, which is one thousand (10³).
- Exact
- Yes, the value is exact by definition
- Source
- SI Brochure, 9th edition (BIPM, 2019)
Common applications
The most familiar prefix: kilometers, kilograms, kilowatts, kilohertz and kilobytes (1000 bytes) all use it.
Kilo in other si prefixes units
- 1 k = 1e-27 QQuetta
- 1 k = 1e-24 RRonna
- 1 k = 1e-21 YYotta
- 1 k = 1e-18 ZZetta
- 1 k = 1e-15 EExa
- 1 k = 1e-12 PPeta
- 1 k = 1e-9 TTera
- 1 k = 0.000001 GGiga
- 1 k = 0.001 MKilo to Mega converter
- 1 k = 10 hHecto
- 1 k = 100 daDeca
- 1 k = 10000 dDeci
- 1 k = 100000 cCenti
- 1 k = 1000000 mKilo to Milli converter
- 1 k = 1000000000 µMicro
- 1 k = 1000000000000 nNano
- 1 k = 1e+15 pPico
- 1 k = 1e+18 fFemto
- 1 k = 1e+21 aAtto
- 1 k = 1e+24 zZepto
- 1 k = 1e+27 yYocto
- 1 k = 1e+30 rRonto
- 1 k = 1e+33 qQuecto
- 1 k = 1000 ×1Kilo to Base unit (no prefix) converter
Kilo quick reference
| Kilo | Mega | Milli | Base unit (no prefix) |
|---|---|---|---|
| 1 k | = 0.001 M | = 1000000 m | = 1000 ×1 |
| 10 k | = 0.01 M | = 10000000 m | = 10000 ×1 |
| 100 k | = 0.1 M | = 100000000 m | = 100000 ×1 |
| 1000 k | = 1 M | = 1000000000 m | = 1000000 ×1 |
Where the kilo unit fits
The next smaller si prefixes unit is the hecto unit (h). 1 k = 10 h, and 1 h = 0.1 k.
The next larger si prefixes unit is the mega unit (M). 1 k = 0.001 M, and 1 M = 1000 k.
Frequently asked questions
- How many mega units are in one kilo unit?
- One kilo unit = 0.001 M (mega units).
- How many milli units are in one kilo unit?
- One kilo unit = 1000000 m (milli units).
- How many base units are in one kilo unit?
- One kilo unit = 1000 ×1 (base units).