Viscosity Kinematic / St → mm²/s
Convert Stokes to Square millimeters per second
Convert kinematic viscosity using square meters per second. Convert Stokes (St) to Square millimeters per second (mm²/s). Find the formula, worked examples, unit definitions, and practical guidance below.
Reverse: Square millimeters per second to Stokes →
How to convert stokes to square millimeters per second
Kinematic viscosity is dynamic viscosity divided by density. The stokes equals one square centimeter per second. Temperature must match when comparing material data.
Use x for the value in St, b for the intermediate value in m²/s, and y for the result in mm²/s.
mm²/s = St × 0.0001 ÷ 0.000001
Worked examples
10 St ≈ 1000 mm²/s
Step 1: (10 × 0.0001) ≈ 0.001 m²/s.
Step 2: 0.001 ÷ 0.000001 ≈ 1000 mm²/s.20 St ≈ 2000 mm²/s
Step 1: (20 × 0.0001) ≈ 0.002 m²/s.
Step 2: 0.002 ÷ 0.000001 ≈ 2000 mm²/s.
Results are rounded to 12 significant digits. Converting units does not increase the precision of the original measurement. Very large or small values outside JavaScript’s finite numeric range are rejected.
About Stokes
Stokes (St) measures viscosity kinematic under the conventions above. The base value in m²/s is (x × 0.0001), where x is the numerical value in St. Factors shown here are rounded for display; calculations use the stored factor.
About Square millimeters per second
Square millimeters per second (mm²/s) measures viscosity kinematic under the conventions above. The base value in m²/s is (x × 0.000001), where x is the numerical value in mm²/s. Factors shown here are rounded for display; calculations use the stored factor.
Definitions and sources
Carry the same physical assumptions into subsequent physics calculations.
Stokes to square millimeters per second reference table
| Stokes (St) | Square millimeters per second (mm²/s) |
|---|---|
| 1 | 100 |
| 5 | 500 |
| 10 | 1000 |
| 25 | 2500 |
| 50 | 5000 |
| 100 | 10000 |
| 1000 | 100000 |
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