Thermal diffusivity calculator

Calculate thermal diffusivity with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use thermal diffusivity to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Thermal conductivity (W/(m K))
0.2
Density (kg/m³)
800
Specific heat (J/(kg K))
1500
Thermal diffusivity (m²/s)
0

Try another scenario

Thermal conductivity (W/(m K))
0.22000000000000003
Density (kg/m³)
800
Specific heat (J/(kg K))
1500
Thermal diffusivity (m²/s)
0
Calculation method

Calculation method

Thermal diffusivity (m²/s)

alpha=k/(rho cp).

Symbols and units
a
Thermal conductivity (W/(m K))
b
Density (kg/m³)
c
Specific heat (J/(kg K))

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Calculation uses the entered values and stated mathematical model; quantities must use the labelled units. Supported limits: All required fields must be finite values of the exact declared type and within displayed bounds. Lists contain1–1000 finite numbers. JSON tables are numeric rectangular rows, at most100 rows and30 columns; individual tools have stricter shape/domain constraints. alpha=k/(rho cp).
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Further reading

Method reference ↗

Background reading; this does not imply endorsement or independent review of SumFizz.

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