Convert thermal diffusivity between m²/s, cm²/s, mm²/s, ft²/s and in²/s.
Thermal diffusivity measures how quickly heat spreads through a material by conduction. It relates thermal conductivity, density and specific heat, and its SI unit is m²/s — the same units as kinematic viscosity, although the quantities are different. Select the units and enter a value. For example, 1 m²/s equals 10,000 cm²/s or 1,000,000 mm²/s.