Viscosity
Sttom²/s
Convert stokes (St) to square metres per second (m²/s).
Factor1 St = 0.0001 m²/s
Converter
St
Accepts numbers or expressions, e.g. 150 + 14.7
Result
m²/s
Rendered to 6 significant figures.
Formula
Formula
m²/s = St × 0.0001
Multiply any value in stokes by 0.0001 to obtain the value in square metres per second.
Worked example
Convert 10000 St to m²/s.
- 01Start with 10000 St.
- 02Multiply by the conversion factor: 10000 × 0.0001 = 1 m²/s.
Result10000 St = 1 m²/s
Conversion table
| St | m²/s |
|---|---|
| 1 | 0.0001 |
| 2 | 0.0002 |
| 5 | 0.0005 |
| 10 | 0.001 |
| 20 | 0.002 |
| 50 | 0.005 |
| 100 | 0.01 |
| 200 | 0.02 |
| 500 | 0.05 |
| 1000 | 0.1 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from St to m²/s?
1 St equals 0.0001 m²/s. To convert, multiply the value in stokes by 0.0001.
How do I convert 1 St to m²/s?
1 St = 0.0001 m²/s. For any value, multiply by 0.0001.
How do I convert m²/s back to St?
Divide by the same factor — or equivalently, multiply by 10000. So 1 m²/s = 10000 St.
When would I need to convert stoke to square metre per second?
Kinematic viscosity conversions between St 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).