Viscosity
cSttom²/s
Convert centistokes (cSt) to square metres per second (m²/s).
Factor1 cSt = 1e-6 m²/s
Converter
cSt
Accepts numbers or expressions, e.g. 150 + 14.7
Result
m²/s
Rendered to 6 significant figures.
Formula
Formula
m²/s = cSt × 1e-6
Multiply any value in centistokes by 1e-6 to obtain the value in square metres per second.
Worked example
Convert 1.00000e+6 cSt to m²/s.
- 01Start with 1.00000e+6 cSt.
- 02Multiply by the conversion factor: 1.00000e+6 × 1e-6 = 1 m²/s.
Result1.00000e+6 cSt = 1 m²/s
Conversion table
| cSt | m²/s |
|---|---|
| 1 | 1e-6 |
| 2 | 2e-6 |
| 5 | 5e-6 |
| 10 | 1e-5 |
| 20 | 2e-5 |
| 50 | 5e-5 |
| 100 | 1e-4 |
| 200 | 0.0002 |
| 500 | 0.0005 |
| 1000 | 0.001 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from cSt to m²/s?
1 cSt equals 1e-6 m²/s. To convert, multiply the value in centistokes by 1e-6.
How do I convert 1 cSt to m²/s?
1 cSt = 1e-6 m²/s. For any value, multiply by 1e-6.
How do I convert m²/s back to cSt?
Divide by the same factor — or equivalently, multiply by 1000000. So 1 m²/s = 1.00000e+6 cSt.
When would I need to convert centistoke to square metre per second?
Kinematic viscosity conversions between cSt and m²/s arise in hydraulic fluid selection, lubricant grading (ISO VG), pipe flow Reynolds number calculations, and fuel-oil specification. Kinematic viscosity equals dynamic viscosity divided by fluid density and cannot be directly compared to dynamic viscosity without that context.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).