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Viscosity

mm²/stoft²/s

Convert square millimetres per second (mm²/s) to square feet per second (ft²/s).

Factor1 mm²/s = 1.076391e-5 ft²/s

Converter

mm²/s

Accepts numbers or expressions, e.g. 150 + 14.7

Result
1.07639ft²/s

Rendered to 6 significant figures.

Formula

Formula
ft²/s = mm²/s × 1.076391e-5

Multiply any value in square millimetres per second by 1.076391e-5 to obtain the value in square feet per second.

Worked example

Convert 100000 mm²/s to ft²/s.

  1. 01Start with 100000 mm²/s.
  2. 02Multiply by the conversion factor: 100000 × 1.076391e-5 = 1.07639 ft²/s.
Result100000 mm²/s = 1.07639 ft²/s

Conversion table

mm²/sft²/s
11.0764e-5
22.1528e-5
55.382e-5
100.00010764
200.00021528
500.0005382
1000.0010764
2000.0021528
5000.005382
10000.010764

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from mm²/s to ft²/s?
1 mm²/s equals 1.076391e-5 ft²/s. To convert, multiply the value in square millimetres per second by 1.076391e-5.
How do I convert 1 mm²/s to ft²/s?
1 mm²/s = 1.07639e-5 ft²/s. For any value, multiply by 1.076391e-5.
How do I convert ft²/s back to mm²/s?
Divide by the same factor — or equivalently, multiply by 92903.04. So 1 ft²/s = 92903 mm²/s.
When would I need to convert square millimetre per second to square foot per second?
Kinematic viscosity conversions between mm²/s and ft²/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).

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