Insulation thermal resistance
Insulation thermal resistance: calculate a transparent estimate from the values and assumptions you provide.
Your inputs stay in your browser. Displayed results are rounded to a maximum of 12 significant digits.
Method and assumptions
Method version 1.0.0 · Updated
Calculate
Formula: R = thickness(m) / conductivity λ
Insulation thermal resistance: calculate a transparent estimate from the values and assumptions you provide.
- thicknessMm
- Material thickness (mm)
- conductivity
- Thermal conductivity λ (W/m·K)
Single homogeneous layer only; thermal bridges and installation are not modelled.
Calculate with code
These short examples use the same inputs and core calculation as this tool. Adapt validation and formatting to your application.
JavaScript
const totalR = 2 * 3.5; // R-7