About the Heat Capacity Calculator
Total heat capacity of an object (C = Q/ΔT = mc) and the energy to change its temperature.
Also known as: thermal capacity, heat capacity formula, thermal mass.
How to use this calculator
- Enter mass, specific heat, temperature change.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
C = m × c · Q = C × ΔT
Worked example
Using the values pre-filled in the calculator above:
- Mass = 50 kg
- Specific heat = 900 J/(kg·K)
- Temperature change = 10 K
the calculator returns:
- Heat capacity: 45,000 J/K
- Energy for this ΔT: 450,000 J
- In kJ/K: 45
- In Wh/K: 12.5