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Viscosity

lb/(ft·hr)toN·s/m²

Convert pounds per foot-hour (lb/(ft·hr)) to newton-seconds per square metre (N·s/m²).

Factor1 lb/(ft·hr) = 0.0004133789 N·s/m²

Converter

lb/(ft·hr)

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

Result
0.413379N·s/m²

Rendered to 6 significant figures.

Formula

Formula
N·s/m² = lb/(ft·hr) × 0.0004133789

Multiply any value in pounds per foot-hour by 0.0004133789 to obtain the value in newton-seconds per square metre.

Worked example

Convert 1000 lb/(ft·hr) to N·s/m².

  1. 01Start with 1000 lb/(ft·hr).
  2. 02Multiply by the conversion factor: 1000 × 0.0004133789 = 0.413379 N·s/m².
Result1000 lb/(ft·hr) = 0.413379 N·s/m²

Conversion table

lb/(ft·hr)N·s/m²
10.00041338
20.00082676
50.0020669
100.0041338
200.0082676
500.020669
1000.041338
2000.082676
5000.20669
10000.41338

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from lb/(ft·hr) to N·s/m²?
1 lb/(ft·hr) equals 0.0004133789 N·s/m². To convert, multiply the value in pounds per foot-hour by 0.0004133789.
How do I convert 1 lb/(ft·hr) to N·s/m²?
1 lb/(ft·hr) = 0.000413379 N·s/m². For any value, multiply by 0.0004133789.
How do I convert N·s/m² back to lb/(ft·hr)?
Divide by the same factor — or equivalently, multiply by 2419.088. So 1 N·s/m² = 2419.09 lb/(ft·hr).
When would I need to convert pound per foot-hour to newton-second per square metre?
Dynamic viscosity conversions between lb/(ft·hr) and N·s/m² are common in fluid characterisation, pump and control valve sizing, pipeline pressure-drop calculations, and lubrication engineering. Centipoise (cP) and mPa·s are the most widely used units in process datasheets; Pa·s is required for most simulation tools.
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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