Water Viscosity Calculator
Estimate μ in Pa·s and cP from temperature.
How to Use This Calculator
1
Enter temperature
Range 0–100°C; assumes pure water and ~1 atm.
2
Calculate μ
Results in Pa·s and cP.
Formula
μ(T) = 2.414×10⁻⁵ · 10^{ 247.8 / (T + 133.15) }
T in °C; μ in Pa·s. 1 cP = 0.001 Pa·s.
Example: T=20°C ⇒ μ≈ 0.001002 Pa·s (1.002 cP).
Frequently Asked Questions
Does pressure affect μ?
For water in this range, pressure effect is small; this model assumes ~1 atm.
What about mixtures?
This is for pure water. Solutions require different correlations.