Heat Conduction Calculator

• Heat conduction calculator
• Calculate steady-state heat flow rate, heat flux, thermal resistance and temperature difference through a plane wall using Fourier's law, with conductivity presets for copper, aluminium, steel, stainless steel, glass, concrete, wood and more, plus unit switching for area and thickness

1. Open the tool page — no installation needed
2. In the parameters panel, pick a material preset (or enter the thermal conductivity manually), then set the heat transfer area, wall thickness, and the hot-side and cold-side temperatures — both area and thickness support unit switching
3. Results are calculated in real time — there is no Calculate button. Review the heat flow rate, heat flux, thermal resistance and temperature difference; use the copy icon on a row for a single value or "Copy all" for everything, and "Reset" to restore the defaults

• This tool is completely free and requires no sign-up
• Everything runs locally in your browser — your data never leaves your device

Free online heat conduction calculator. Calculate steady-state heat flow rate, heat flux and thermal resistance through a plane wall using Fourier's law, with material conductivity presets and unit switching.

Open the tool page — no installation needed In the parameters panel, pick a material preset (or enter the thermal conductivity manually), then set the heat transfer area, wall thickness, and the hot-side and cold-side temperatures — both area and thickness support unit switching Results are calculated in real time — there is no Calculate button. Review the heat flow rate, heat flux, thermal resistance and temperature difference; use the copy icon on a row for a single value or "Copy all" for everything, and "Reset" to restore the defaults

This tool is completely free and requires no sign-up Everything runs locally in your browser — your data never leaves your device

Yes, Heat Conduction Calculator is completely free. No download or installation required — it runs right in your browser.