Specific Heat Calculator
Heat needed to warm or cool a material: Q = m × c × ΔT.
g
°C
°C
How it works
Q = mass × specific heat × temperature change. Water has a high specific heat of 4.186 J/g·°C, so it takes a lot of energy to warm. Example: heating 250 g of water from 20 °C to 80 °C needs about 62,790 J. Values are typical figures near room temperature.
FAQ
Is this calculator free?
Yes. No signup is needed and nothing you enter is stored.
Is the result exact?
Results are rounded for display. For financial, medical, or legal decisions, confirm with a professional.
Do my numbers leave my device?
No. The calculation runs in your browser.