How many centipoise are in one pascal-second?

One pascal-second equals exactly 1,000 centipoise. This is because 1 Pa·s = 1 poise × 10, and 1 poise = 100 centipoise, giving 1 Pa·s = 1,000 cP.

What is the viscosity of water in these units?

Water at 20°C has a dynamic viscosity of approximately 1.002 cP, which equals about 0.001 Pa·s (1 mPa·s). This is why water is often used as a reference: 1 cP ≈ the viscosity of water at room temperature.

What is the difference between Pa·s and cP?

Both measure dynamic (absolute) viscosity. Pascal-second (Pa·s) is the SI unit; centipoise (cP) is from the older CGS system. They represent the same physical quantity with a fixed ratio: 1 Pa·s = 1,000 cP. Many industries such as food, pharma, and coatings still report viscosity in cP.

How do I convert centipoise back to pascal-seconds?

Divide the cP value by 1,000. For example, 500 cP ÷ 1,000 = 0.5 Pa·s. Use the swap button in this tool to perform the reverse conversion automatically.

What are typical viscosity values in Pa·s and cP?

Water: ~0.001 Pa·s (1 cP). Motor oil (SAE 30): ~0.1 Pa·s (100 cP). Honey: ~2–10 Pa·s (2,000–10,000 cP). Ketchup: ~50–100 Pa·s (50,000–100,000 cP). Glycerin at 20°C: ~1.5 Pa·s (1,500 cP).

Pascal Seconds to Centipoise Converter

Name: Pascal Seconds to Centipoise Converter
Availability: InStock
Author: Nham Vu

Enter a dynamic viscosity value in pascal-seconds (Pa·s) and instantly get the equivalent in centipoise (cP); 1 Pa·s = 1,000 cP.

Dynamic Viscosity Conversion

Value in Pascal-seconds (Pa·s)

Result in Centipoise (cP)

Formula

cP = Pa·s × 1,000

1 Pa·s = 1,000 cP (exact)

Common Fluid Viscosities

Fluid	Pa·s	cP
Water (20°C)	0.001	1
Glycerin (20°C)	1.5	1,500
Motor oil SAE 30	~0.1	~100
Honey	2–10	2,000–10,000
Air (20°C)	0.000018	0.018
Ketchup	50–100	50,000–100,000

Summary

Enter a dynamic viscosity value in pascal-seconds (Pa·s) and instantly get the equivalent in centipoise (cP); 1 Pa·s = 1,000 cP.

How it works

Enter the viscosity value in pascal-seconds (Pa·s) in the input field.
The converter multiplies your value by 1,000 to get centipoise (cP).
The result appears instantly below the input.
Use the swap button to reverse the conversion from centipoise to pascal-seconds.
Copy the result to clipboard with one click.

Use cases

Convert viscosity data between SI and CGS unit systems.
Compare fluid viscosities across datasheets using different unit conventions.
Verify viscosity values in chemical engineering and fluid mechanics calculations.
Convert manufacturer lubricant or polymer melt viscosity specs.
Translate rheology lab measurements from Pa·s to cP for reporting.
Check viscosity values when setting up computational fluid dynamics (CFD) simulations.

Frequently Asked Questions

Last updated: 2026-07-22 · Reviewed by Nham Vu