Dynamic Viscosity Converter
Dynamic Viscosity Converter: convert between 6 dynamic viscosity units, for example 1 cP = 0.001 Pa·s.
| Unit | Value |
|---|---|
| centipoise to pascal-second | 0.001 Pa·s |
| centipoise to millipascal-second | 1 mPa·s |
| centipoise (cP) | 1 cP |
| centipoise to poise | 0.01 P |
| centipoise to pound-force second per square foot | 0.00002088543423 lbf·s/ft² |
| centipoise to pound per foot-second | 0.0006719689751 lb/(ft·s) |
Convert dynamic (absolute) viscosity between Pa·s, mPa·s, centipoise, poise, lbf·s/ft² and lb/(ft·s). 1 cP = 1 mPa·s exactly.
Dynamic vs kinematic viscosity
Dynamic viscosity μ (Pa·s, cP) measures internal friction. Kinematic viscosity ν (m²/s, cSt) is μ divided by density: ν = μ / ρ. For water at 20 °C, μ ≈ 1.0 mPa·s and ν ≈ 1.0 cSt because its density is about 1 g/cm³; for oils the two numbers differ.
Dynamic Viscosity unit definitions
- pascal-second (Pa·s)
- The pascal-second (Pa·s) is the SI unit of dynamic (absolute) viscosity. Water at 20 °C is about 0.001 Pa·s and honey about 2–10 Pa·s.
- millipascal-second (mPa·s)
- The millipascal-second (mPa·s) is one thousandth of a pascal-second and exactly equal to one centipoise.
- centipoise (cP)
- The centipoise (cP) is one hundredth of a poise, exactly 1 mPa·s. Water at 20 °C is almost exactly 1 cP, which made it a convenient reference.
- poise (P)
- The poise (P) is the CGS unit of dynamic viscosity, exactly 0.1 Pa·s. It is named after Jean Léonard Marie Poiseuille.
- pound-force second per square foot (lbf·s/ft²)
- The pound-force second per square foot (lbf·s/ft², equal to slug/(ft·s)) is the US engineering unit of dynamic viscosity, about 47.88 Pa·s.
- pound per foot-second (lb/(ft·s))
- The pound (mass) per foot-second is a dynamic viscosity unit used with lbm-based US calculations, about 1.488 Pa·s. Water at 68 °F is about 0.000672 lb/(ft·s).
All dynamic viscosity conversions
From pascal-seconds
From millipascal-seconds
From centipoise
From poise
From pound-force seconds per square foot
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Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures.
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology.
Last reviewed: .