Fluids / Water

Specific heat of water vs temperature

Specific heat in kJ/(kg·K), from 0 to 100 °C. The chart and the table below are the same numbers; the table is the one you can copy.

Specific heat kJ/(kg·K)
Specific heat of water in kJ/(kg·K), from 0 to 100 °C0 °C — 4.22 kJ/(kg·K)10 °C — 4.196 kJ/(kg·K)20 °C — 4.184 kJ/(kg·K)30 °C — 4.18 kJ/(kg·K)40 °C — 4.18 kJ/(kg·K)50 °C — 4.182 kJ/(kg·K)60 °C — 4.185 kJ/(kg·K)70 °C — 4.19 kJ/(kg·K)80 °C — 4.197 kJ/(kg·K)90 °C — 4.205 kJ/(kg·K)100 °C — 4.217 kJ/(kg·K)4.184.184.194.194.24.24.214.210102030405060708090100Temperature (°C)Specific heat (kJ/(kg·K))
Water — everything else at 20 °C (default)
Density998.2 kg/m³
Dynamic viscosity1.0016 mPa·s
Thermal conductivity0.5984 W/(m·K)
Vapour pressure2.3296 kPa
Latent heat of vaporisation2,453.5 kJ/kg
Specific heat by temperature
Temperature (°C)Specific heat (kJ/(kg·K))Row
04.2199published
104.1955published
204.1844published
304.1801published
404.1796published
504.1816published
604.1851published
704.1902published
804.1969published
904.2055published
1004.2166published

Rows marked published land exactly on a source anchor and are the tabulated figure. The rest are this library’s interpolation between the two anchors either side — good enough to design with, and said out loud so you can decide that for yourself.

Kell (1975) density on ITS-90; IAPWS 2008 viscosity; IAPWS-95 for cp, k and hfg; Antoine for vapour pressure · validated 0 to 100 °C · interpolated between 11 published anchors (values held, not extrapolated, past the ends)