Water - Specific Heat vs. Temperature

Online calculator, figures and tables showing specific heat of liquid water at constant volume or constant pressure at temperatures from 0 to 360 °C (32-700 °F) - SI and Imperial units.

Online Water Specific Heat Calculator

The calculator below can be used to calculate the liquid water specific heat at constant volume or constant pressure and given temperatures.
The output specific heat is given as kJ/(kmol*K), kJ/(kg*K), kWh/(kg*K), kcal/(kg K), Btu(IT)/(mol*°R) and Btu(IT)/(lb_m*°R)

Note! Temperature must be within the ranges 0-370 °C, 32-700 °F, 273-645 K and 492-1160 °R to get valid values.

Temperature
Choose the actual unit of temperature:
°C °F K °R

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See Water and Heavy Water - thermodynamic properties.
See also other properties of Water at varying temperature and pressure: Boiling points at high pressure, Boiling points at vacuum pressure, Density and specific weight, Dynamic and kinematic viscosity, Enthalpy and entropy, Heat of vaporization, Ionization Constant, pK_w, of normal and heavy water, Melting points at high pressure, Prandtl number, Properties at Gas-Liquid Equilibrium Conditions, Saturation pressure, Specific gravity, Specific volume, Thermal conductivity, Thermal diffusivity and Vapour pressure at gas-liquid equilibrium,
as well as Specific heat of Air - at Constant Pressure and Varying Temperature, Air - at Constant Temperature and Varying Pressure, Ammonia, Butane, Carbon dioxide, Carbon monoxide, Ethane, Ethanol, Ethylene, Hydrogen, Methane, Methanol, Nitrogen, Oxygen and Propane.

Specific heat for liquid water at temperatures from 0 to 360 °C:

For full table with Isobaric Specific Heat - rotate the screen!

Temperature	Isochoric Specific Heat (C_v)				Isobaric Specific Heat (C_p)
[°C]	[J/(mol K)]	[kJ/(kg K)]	[kWh/(kg K)]	[kcal/(kg K)] [Btu(IT)/lb_m °F]	[J/(mol K)]	[kJ/(kg K)]	[kWh/(kg K)]	[kcal/(kg K)] [Btu(IT)/lb_m°F]
0.01	75.981	4.2174	0.001172	1.0073	76.026	4.2199	0.001172	1.0079
10	75.505	4.1910	0.001164	1.0010	75.586	4.1955	0.001165	1.0021
20	74.893	4.1570	0.001155	0.9929	75.386	4.1844	0.001162	0.9994
25	74.548	4.1379	0.001149	0.9883	75.336	4.1816	0.001162	0.9988
30	74.181	4.1175	0.001144	0.9834	75.309	4.1801	0.001161	0.9984
40	73.392	4.0737	0.001132	0.9730	75.300	4.1796	0.001161	0.9983
50	72.540	4.0264	0.001118	0.9617	75.334	4.1815	0.001162	0.9987
60	71.644	3.9767	0.001105	0.9498	75.399	4.1851	0.001163	0.9996
70	70.716	3.9252	0.001090	0.9375	75.491	4.1902	0.001164	1.0008
80	69.774	3.8729	0.001076	0.9250	75.611	4.1969	0.001166	1.0024
90	68.828	3.8204	0.001061	0.9125	75.763	4.2053	0.001168	1.0044
100	67.888	3.7682	0.001047	0.9000	75.950	4.2157	0.001171	1.0069
110	66.960	3.7167	0.001032	0.8877	76.177	4.2283	0.001175	1.0099
120	66.050	3.6662	0.001018	0.8757	76.451	4.2435	0.001179	1.0135
140	64.306	3.5694	0.000992	0.8525	77.155	4.2826	0.001190	1.0229
160	62.674	3.4788	0.000966	0.8309	78.107	4.3354	0.001204	1.0355
180	61.163	3.3949	0.000943	0.8109	79.360	4.4050	0.001224	1.0521
200	59.775	3.3179	0.000922	0.7925	80.996	4.4958	0.001249	1.0738
220	58.514	3.2479	0.000902	0.7757	83.137	4.6146	0.001282	1.1022
240	57.381	3.1850	0.000885	0.7607	85.971	4.7719	0.001326	1.1397
260	56.392	3.1301	0.000869	0.7476	89.821	4.9856	0.001385	1.1908
280	55.578	3.0849	0.000857	0.7368	95.285	5.2889	0.001469	1.2632
300	55.003	3.0530	0.000848	0.7292	103.60	5.7504	0.001597	1.3735
320	54.819	3.0428	0.000845	0.7268	117.78	6.5373	0.001816	1.5614
340	55.455	3.0781	0.000855	0.7352	147.88	8.2080	0.002280	1.9604
360	59.402	3.2972	0.000916	0.7875	270.31	15.004	0.004168	3.5836

Specific heat for liquid water at temperatures from 32 to 675 °F:

For full table with Isobaric Specific Heat - rotate the screen!

Temperature	Isochoric Specific Heat (C_v)			Isobaric Specific Heat (C_p)
[°F]	[Btu(IT)/(mol °R)]	[Btu(IT)/(lb_m °F)] [kcal/(kg K)]	[kJ/(kg K)]	[Btu(IT)/kmol °R]	[Btu(IT)/lb_m °F] [kcal/kg K]	[kJ/kg K]
32.2	40.0	1.007	4.217	40.032	1.008	4.220
40	39.9	1.005	4.208	39.916	1.005	4.208
50	39.8	1.001	4.191	39.801	1.002	4.196
60	39.6	0.996	4.169	39.739	1.001	4.189
80	39.2	0.986	4.128	39.660	0.999	4.181
100	38.7	0.975	4.082	39.643	0.998	4.179
120	38.3	0.963	4.033	39.662	0.999	4.181
140	37.7	0.950	3.977	39.702	1.000	4.185
160	37.2	0.937	3.923	39.761	1.001	4.191
180	36.7	0.923	3.865	39.835	1.003	4.199
200	36.1	0.909	3.805	39.927	1.005	4.209
212	35.7	0.900	3.768	39.993	1.007	4.216
220	35.5	0.895	3.745	40.042	1.008	4.221
240	35.0	0.880	3.686	40.186	1.012	4.236
260	34.4	0.867	3.629	40.364	1.016	4.255
280	33.9	0.854	3.574	40.580	1.022	4.278
300	33.4	0.841	3.522	40.838	1.028	4.305
350	32.3	0.813	3.404	41.685	1.050	4.394
400	31.3	0.789	3.302	42.902	1.080	4.522
450	30.4	0.767	3.209	44.009	1.108	4.639
500	29.7	0.748	3.130	47.296	1.191	4.986
550	28.8	0.725	3.035	51.318	1.292	5.410
600	28.3	0.713	2.987	59.690	1.503	6.292
625	28.4	0.716	2.997	66.611	1.677	7.022
650	28.9	0.728	3.047	82.851	2.086	8.734
675	29.9	0.754	3.156	126.670	3.189	13.353

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Water - Specific Heat vs. Temperature

Online calculator, figures and tables showing specific heat of liquid water at constant volume or constant pressure at temperatures from 0 to 360 °C (32-700 °F) - SI and Imperial units.

Online Water Specific Heat Calculator

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