Viscosity of Water

Are you getting inconsistent results in your lab? The viscosity of water changes dramatically with temperature, and ignoring this can ruin your entire process or experiment.

The viscosity of water is not a single value. It is highly dependent on temperature. For example, at 20°C (room temperature), water's dynamic viscosity is approximately 1.002 millipascal-seconds (mPa·s). As temperature increases, the viscosity decreases significantly.

This simple fact has huge implications for many industries. At Martests, we provide high-precision viscometers, but accurate measurements also require a deep understanding of the fluid you're testing. Let me share some essential data that every lab and factory should have on hand. It will help you control your processes better and improve your product quality.

What are the Viscosity and Density Values for Water from 2°C to 80°C?

Do you need quick and reliable viscosity data for water? Searching through complex scientific papers for a single value is frustrating and wastes time. Here's a simple solution.

This comprehensive table provides the dynamic viscosity, kinematic viscosity, and density of pure water for every degree from 2°C to 80°C. You can use this as a quick reference guide for your calculations, calibrations, and quality control checks.

In my business, I often talk to clients like Jacky from Italy who need to calibrate their instruments. Water is a common standard, but only if you use the correct viscosity value for the specific temperature of the water in your lab. A small temperature difference can lead to a calibration error that affects all future measurements. I created this table to be a go-to resource for my customers to prevent such problems. It provides the essential data you need in one easy-to-read format.

Water Properties Data Table (2°C to 80°C)

This table uses standard units. Dynamic viscosity is in millipascal-seconds (mPa·s), which is the same as centipoise (cP). Kinematic viscosity is in centistokes (cSt), which is the same as square millimeters per second (mm²/s). Density is in kilograms per cubic meter (kg/m³).

Conclusion

Water's viscosity is not constant. It changes with temperature. This table is your reliable guide for accurate measurements, ensuring better process control and quality in your work.