Viscosity
cSttomm²/s
Convert centistokes (cSt) to square millimetres per second (mm²/s).
Factor1 cSt = 1 mm²/s
Converter
cSt
Accepts numbers or expressions, e.g. 150 + 14.7
Result
mm²/s
Rendered to 6 significant figures.
Formula
Formula
mm²/s = cSt × 1
Multiply any value in centistokes by 1 to obtain the value in square millimetres per second.
Worked example
Convert 1 cSt to mm²/s.
- 01Start with 1 cSt.
- 02Multiply by the conversion factor: 1 × 1 = 1 mm²/s.
Result1 cSt = 1 mm²/s
Conversion table
| cSt | mm²/s |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 5 | 5 |
| 10 | 10 |
| 20 | 20 |
| 50 | 50 |
| 100 | 100 |
| 200 | 200 |
| 500 | 500 |
| 1000 | 1000 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from cSt to mm²/s?
1 cSt equals 1 mm²/s. To convert, multiply the value in centistokes by 1.
How do I convert 1 cSt to mm²/s?
1 cSt = 1 mm²/s. For any value, multiply by 1.
How do I convert mm²/s back to cSt?
Divide by the same factor — or equivalently, multiply by 1. So 1 mm²/s = 1 cSt.
When would I need to convert centistoke to square millimetre per second?
Kinematic viscosity conversions between cSt and mm²/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).