Water property lookup

Specific Heat of Water

Look up the specific heat capacity of water by temperature for heating, cooling, heat exchanger, and energy storage calculations.

Instant lookup

Enter water temperature

Results interpolate specific heat from the water heat capacity table at standard atmospheric pressure.

Water
  • Recommended interpolation range: 0 to 100 °C.

Lookup result

Reference table

Water specific heat by temperature

Temperature (°C) Specific Heat (J/kg·K)
0 4210
5 4205
10 4199
15 4193
20 4187
25 4182
30 4178
35 4175
40 4174
50 4181
60 4193
70 4207
80 4219
90 4228
100 4217

Formulas

Useful water property relationships

Kinematic viscosity

nu = mu / rho

Dynamic viscosity divided by density

Sensible heat

Q = m cp Delta T

Heating or cooling energy for liquid water

Specific heat is used for sensible heat calculations, heat exchanger sizing, calorimetry, thermal storage, and HVAC or process heating estimates.

Reference

What the water property values mean

Density

Mass per unit volume, used for buoyancy, mass flow, hydrostatic pressure, and hydraulic calculations.

Viscosity

Resistance to flow, used for Reynolds number, pressure drop, pump sizing, and pipe flow estimates.

Specific heat

Heat required to raise water temperature, used for heating, cooling, and energy storage calculations.

Vapor pressure

Equilibrium pressure of water vapor, used for boiling, evaporation, cavitation, and phase-change checks.

FAQ

Water property questions

What is the specific heat of water at 25 C?

At 25 C, the specific heat capacity of water is approximately 4182 J/kg.K.

What formula uses specific heat?

For sensible heating or cooling, use Q = m cp Delta T.

Does water specific heat change with temperature?

Yes. It changes slightly across the liquid range, so using a temperature-specific value improves calculations.

Related

Water property tables