Specific Heat Calculator
Calculate thermal energy (Q), mass, specific heat capacity, or temperature change instantly using the Q = mcΔT formula.
Calculate Thermal Energy
Select what you want to solve for, enter the known values, and instantly get accurate results with step-by-step breakdowns.
Thermal Energy Estimator
Solve for any variable in the specific heat equation.
How it Works
Understanding the Q = mcΔT formula
Choose Your Variable
Select whether you need to find Thermal Energy (Q), Mass (m), Specific Heat (c), or Temperature Change (ΔT).
Enter Known Values
Input the known quantities. The calculator automatically harmonizes units (e.g., converting kg to g) to ensure accuracy.
Calculate ΔT
The temperature change (ΔT) is always calculated as Final Temperature minus Initial Temperature (T_f – Tᵢ).
Instant Results
Get your answer instantly, complete with the exact formula applied and a step-by-step breakdown of the math.
Common Specific Heat Values
Reference values for the specific heat capacity of common substances at room temperature (approx. 25°C).
| Substance | Specific Heat (J/g°C) | Specific Heat (J/kg°C) | State |
|---|---|---|---|
| Water (Liquid) | 4.184 | 4184 | Liquid |
| Ice | 2.09 | 2090 | Solid |
| Steam | 2.01 | 2010 | Gas |
| Aluminum | 0.897 | 897 | Solid |
| Iron | 0.449 | 449 | Solid |
| Copper | 0.385 | 385 | Solid |
| Gold | 0.129 | 129 | Solid |
| Air | 1.01 | 1010 | Gas |
Specific Heat FAQ
Answers to the most frequently asked questions about thermal energy, heat capacity, and thermodynamics.
The formula for specific heat is Q = mcΔT, where Q is the thermal energy (heat) added or removed in Joules, m is the mass of the substance, c is the specific heat capacity, and ΔT is the change in temperature (Final Temperature – Initial Temperature).
The specific heat capacity of liquid water is approximately 4.184 Joules per gram per degree Celsius (J/g°C), or 4184 J/kg°C. This unusually high value is why water is highly effective at regulating temperature in both natural environments and engineering applications.
Heat capacity is the amount of heat required to raise the temperature of an entire object by 1°C (measured in J/°C). Specific heat capacity is the amount of heat required to raise the temperature of exactly 1 gram (or 1 kg) of a substance by 1°C (measured in J/g°C or J/kg°C), making it an intensive property that does not depend on the amount of material.
For ordinary, stable macroscopic substances, specific heat capacity is always positive. A negative specific heat would imply that adding heat causes the temperature to drop, which violates thermodynamic stability in normal systems, though the concept can appear in certain exotic astrophysical contexts like black holes.