Convert dynamic viscosity units — Pascal-second, Poise, centipoise, lb/(ft·s) and more.
| Unit | Name | Value |
|---|---|---|
| Pa·s | Pascal-second | 0.001 |
| P | Poise | 0.01 |
| lb/(ft·s) | Pound/(Foot·Second) | 0.00067197076 |
| kg/(m·s) | Kilogram/(Meter·Second) | 0.001 |
| mPa·s | Millipascal-second | 1 |
Formula: kg/(m·s) = Millipascal-second × 0.001
Multiply any Millipascal-second value by 0.001 to get kg/(m·s).
Reverse: Millipascal-second = kg/(m·s) × 1000
Water reference (20°C): 1.002 mPa·s = 0.001002 kg/(m·s)
Values at ~20°C unless noted. Factor: 1 mPa·s = 0.001 kg/(m·s)
| Millipascal-second (mPa·s) | kg/(m·s) (kg/(m·s)) | Fluid |
|---|---|---|
| 0.018 mPa·s | 1.800e-05 kg/(m·s) | Air (20°C) |
| 1.002 mPa·s | 0.001002 kg/(m·s) | Water (20°C) |
| 1.2 mPa·s | 0.0012 kg/(m·s) | Ethanol |
| 3.5 mPa·s | 0.0035 kg/(m·s) | Blood (37°C) |
| 65 mPa·s | 0.065 kg/(m·s) | SAE 10W motor oil |
| 84 mPa·s | 0.084 kg/(m·s) | Olive oil |
| 200 mPa·s | 0.2 kg/(m·s) | Maple syrup |
| 300 mPa·s | 0.3 kg/(m·s) | SAE 30 motor oil |
| 5000 mPa·s | 5 kg/(m·s) | Honey |
| 5e+04 mPa·s | 50 kg/(m·s) | Ketchup |
| 1e+05 mPa·s | 100 kg/(m·s) | Molten glass (700°C) |
| 2.5e+05 mPa·s | 250 kg/(m·s) | Peanut butter |
| 3e+07 mPa·s | 3e+04 kg/(m·s) | Tar (room temp) |
| 2.300e+11 mPa·s | 2.3e+08 kg/(m·s) | Pitch (20°C) |
1 mPa·s = 0.001 kg/(m·s).
Water at 20°C ≈ 1 cP = 1 mPa·s = 0.001 Pa·s = 0.01 P. Use as reference.
Multiply result by 1000 to recover the original mPa·s value.
Specifies oil viscosity in cP or mPa·s for formulation and quality control of lubricants.
Uses Pa·s and cP for pipeline flow calculations, pump design, and mixing operations.
Measures sauce, syrup, and dough viscosity in cP for texture optimization and process control.
Controls drug formulation viscosity in mPa·s for injectables, topical creams, and oral suspensions.
Specifies paint, ink, and adhesive viscosity in cP for application equipment compatibility.
Characterizes polymer melt viscosity in Pa·s for extrusion and injection molding process design.
Millipascal-second (mPa·s) equals exactly 1 centipoise (cP) = 0.001 Pa·s. It is the preferred SI notation for the centipoise, used in pharmaceutical, food, and chemical industries that require SI-compliant units while retaining the convenient water = 1 value.
mPa·s = cP numerically, making conversion trivial. EU pharmacopoeias and food regulations increasingly specify viscosity in mPa·s. Pharmaceutical injections must be within specific mPa·s ranges for safe administration. Many modern viscometer readouts display in mPa·s.
Interesting fact: The equivalence cP = mPa·s is exact by definition. The International Union of Pure and Applied Chemistry (IUPAC) recommends mPa·s as the preferred SI expression of centipoise — allowing modern data tables to be SI-compliant while remaining numerically compatible with decades of cP data.
Kilogram per meter per second (kg/(m·s)) is numerically identical to the pascal-second (Pa·s), since 1 Pa·s = 1 N·s/m² = 1 kg/(m·s). Both express the same physical quantity. Some older engineering texts prefer kg/(m·s) to make the dimensional analysis explicit.
kg/(m·s) appears in some fluid mechanics textbooks and engineering reference tables, particularly older European texts. The equivalence Pa·s = kg/(m·s) is exact — they are the same unit expressed with different dimensional notation.
Interesting fact: The equivalence Pa·s = kg/(m·s) can be derived dimensionally: Pa = kg/(m·s²), so Pa·s = kg/(m·s). This makes dynamic viscosity dimensionally the same as linear momentum density — an elegant connection in continuum mechanics.
Dynamic viscosity measures a fluid's resistance to flow. The SI unit is Pa·s (= kg/(m·s)); cP and mPa·s are numerically identical and most widely used; P (Poise) is the CGS unit. Key anchor: water at 20°C ≈ 1 cP = 1 mPa·s = 0.001 Pa·s = 0.01 P.
Exact factor: 1 mPa·s = 0.001 kg/(m·s). Reverse: 1 kg/(m·s) = 1000 mPa·s.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.