Centistokes (cSt)
One hundredth of a stokes: exactly 1 mm²/s. Oil viscosity grades are defined in cSt.
What is a centistokes?
- Symbol
- cSt
- Quantity
- Kinematic Viscosity
- Unit system
- CGS
- Definition
- One hundredth of a stokes: exactly 1 mm²/s. Oil viscosity grades are defined in cSt.
- Exact
- Yes, the value is exact by definition
- Source
- NIST Special Publication 811 (2008), Appendix B.8
Common applications
The usual unit for motor oil, hydraulic oil, diesel and fuel oil viscosity, measured at stated temperatures such as 40 °C and 100 °C.
Centistokes in other kinematic viscosity units
- 1 cSt = 0.000001 m²/sCentistokes to Square meter per second converter
- 1 cSt = 1 mm²/sSquare millimeter per second
- 1 cSt = 0.01 StCentistokes to Stokes converter
- 1 cSt ≈ 0.00001076391042 ft²/sCentistokes to Square foot per second converter
- 1 cSt ≈ 0.0015500031 in²/sSquare inch per second
Centistokes quick reference
| Centistokes | Square meter per second | Stokes | Square foot per second |
|---|---|---|---|
| 1 cSt | = 0.000001 m²/s | = 0.01 St | ≈ 0.00001076391042 ft²/s |
| 10 cSt | = 0.00001 m²/s | = 0.1 St | ≈ 0.0001076391042 ft²/s |
| 100 cSt | = 0.0001 m²/s | = 1 St | ≈ 0.001076391042 ft²/s |
| 1000 cSt | = 0.001 m²/s | = 10 St | ≈ 0.01076391042 ft²/s |
Where the centistokes fits
The next larger kinematic viscosity unit is the stokes (St). 1 cSt = 0.01 St, and 1 St = 100 cSt.
Frequently asked questions
- How many square meters per second are in one centistokes?
- One centistokes = 0.000001 m²/s (square meters per second).
- How many stokes are in one centistokes?
- One centistokes = 0.01 St (stokes).
- How many square feet per second are in one centistokes?
- One centistokes ≈ 0.00001076391042 ft²/s (square feet per second).