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.
Symbol: Pa·s (ASCII: Pa.s)
Quantity: dynamic (absolute) viscosity
SI relation: Pa·s is the coherent SI unit of dynamic viscosity.
Derivation: 1 Pa·s = 1 N·s/m² = 1 kg·m⁻¹·s⁻¹
Exact: yes, by definition
Typical uses
- Engineering fluid-flow and Reynolds-number calculations
- Polymer melts and very viscous fluids
- Rheology reports
Convert pascal-seconds to other units
| Conversion | 1 Pa·s equals | Reverse |
|---|---|---|
| pascal-second to centipoise | 1000 cP | centipoise to pascal-second |
| pascal-second to millipascal-second | 1000 mPa·s | millipascal-second to pascal-second |
| pascal-second to poise | 10 P | poise to pascal-second |
| pascal-second to pound-force second per square foot | 0.02088543423 lbf·s/ft² | pound-force second per square foot to pascal-second |
| pascal-second to pound per foot-second | 0.6719689751 lb/(ft·s) | pound per foot-second to pascal-second |
Open the Dynamic Viscosity Converter to convert any value between all units.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 5, derived units expressed with special names.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Pascal-second (Pa·s). Retrieved October 17, 2026, from https://scientificconverters.com/units/pascal-second/
IEEE
Scientific Converters, "Pascal-second (Pa·s)," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/units/pascal-second/