How to use the latent heat calculator
Find energy to melt or vaporise a substance. Enter mass, latent heat in the fields above; the energy are computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “energy to boil water”, “melt ice”, “phase change”, “calculate latent heat”, “find energy”.
Formula
Variables
- m — Mass (kg)
- L — Latent heat (kJ/kg)
Worked example
With mass = 1 kg, latent heat = Melting ice, the calculator gives energy ≈ 334 kJ; energy ≈ 0.09277778 kWh.
Frequently asked questions
What is the latent heat calculator used for?
Find energy to melt or vaporise a substance. It helps with questions such as “energy to boil water”, “melt ice”, “phase change”.
What is the formula for the latent heat calculation?
Energy (kJ) = m × L. Energy (kWh) = [Energy] / 3600. Here m is mass (kg), L is latent heat (kJ/kg).
What inputs do I need for the latent heat calculator?
You need mass in kg, latent heat in kJ/kg. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the latent heat calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the latent heat result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.