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Latent Heat Calculator

🔥 Heat & thermodynamics. Use the Latent heat formula to find energy, mass, specific latent heat l: pick the value you want, type the others, and the answer updates as you go.

Q=mLQ = mL

Melting ice: L = 334 000 J/kg. Boiling water: 2 260 000 J/kg.

Energy334000 J

Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.

What each letter means

QuantityUnit
EnergyJ
Masskg
Specific latent heat LJ/kg

Worked example

Find the energy when Mass = 1 kg, Specific latent heat L = 334000 J/kg.

Using Q = mL: Energy = 334000 J.

Frequently asked questions

What is the formula for Latent heat?

Q = mL. Melting ice: L = 334 000 J/kg. Boiling water: 2 260 000 J/kg.

What do the letters stand for, and what units are used?

Energy in J, Mass in kg, Specific latent heat L in J/kg.

How do you calculate energy?

Put the values into Q = mL. For example, with Mass = 1 kg, Specific latent heat L = 334000 J/kg, energy = 334000 J.

Can I solve for a different value?

Yes. In the calculator above, pick the circle next to any value (energy, mass, specific latent heat l) and fill in the others: it rearranges the formula for you.

All physics formulas in the Physics Formulas