Calorimetry Calculator
q = mcΔT heat transfer for any sample.
Enter your values
Enter the mass in g.
water = 4.184
Enter the start temperature in °C.
Enter the final temperature in °C.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- Heat q
- 20920 J
- In kilojoules
- 20.92 kJ
- In calories
- 5000 cal
- Direction
- Absorbed (endothermic)
- ΔT
- 50 °C
Quick answer
Calorimetry uses q = mcΔT, where q is heat in joules, m is mass in grams, c is specific heat and ΔT is the temperature change.
q = m × c × ΔT
At a glance
| What it does | q = mcΔT heat transfer for any sample. |
|---|---|
| Category | Chemistry |
| Inputs needed | Mass, Specific heat, Start temperature, Final temperature |
| Main output | Heat q |
| Formula | q = m × c × ΔT |
| Cost | Free — no sign-up, no download |
How to use the Calorimetry Calculator
- 1Enter the sample mass in grams.
- 2Enter the specific heat of the substance.
- 3Enter the start and final temperatures.
Inputs explained
- Mass(g)
- Enter the mass in g.
- Specific heat(J/g·°C)
- water = 4.184
- Start temperature(°C)
- Enter the start temperature in °C.
- Final temperature(°C)
- Enter the final temperature in °C.
Worked example
Using the values the calculator loads with:
Inputs
- Mass100 g
- Specific heat4.184 J/g·°C
- Start temperature25 °C
- Final temperature75 °C
Results
- Heat q20920 J
- In kilojoules20.92 kJ
- In calories5000 cal
- DirectionAbsorbed (endothermic)
- ΔT50 °C
Frequently asked questions
What is the specific heat of water?
4.184 J/g·°C for liquid water, which is why water is the standard calorimeter fluid.
Why is my answer negative?
A negative q means the sample cooled and released heat to its surroundings.
What do I need to enter into the Calorimetry Calculator?
Just 4 values: mass, specific heat, start temperature, final temperature. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Calorimetry Calculator work out the answer?
Calorimetry uses q = mcΔT, where q is heat in joules, m is mass in grams, c is specific heat and ΔT is the temperature change. It applies the formula q = m × c × ΔT and shows the working so you can check each step by hand.
Is the Calorimetry Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.