Engineering calculator

Thermal Diffusivity Calculator

Calculate the thermal diffusivity (α) of a material using its thermal conductivity, density, and specific heat capacity values.

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Input parameters

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Formula

α = k / (ρ · cp). α: thermal diffusivity (m²/s), k: thermal conductivity [W/(m·K)], ρ: density (kg/m³), cp: specific heat capacity [J/(kg·K)].

Source / method note

National Snow and Ice Data Center — Thermal diffusivity

Legal / official rate note

The tool calculates material property and does not solve the exact transient temperature field for a specific geometry.

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