Change any value, the other two adapt automatically:
U-value | W/(m²K) |
R-value | ft2·°F·h/BTU |
RSI | m²K/W |
This online tool converts U-value to R-value and RSI.
Try our R-value calculator and calculate the R-Value of a wall, roof, floor, etc. from scratch!
Click here for a free trial of our R-value calculator
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RSI / R-value | ||||
Moisture proofing | ||||
Heat protection | ||||
Heat loss | ||||
LCA | ||||
Commercial use | ||||
Crossed beams | ||||
Customizable PDF document | ||||
Layer color freely selectable | ||||
Materials from DIN 4108-4 & DIN 10456 | ||||
U-Value according to DIN EN ISO 6946 | ||||
Moisture protection according to DIN 4108-3 | ||||
3D view in PDF document | ||||
Save your calculations in folders | ||||
Custom thermal contact resistances | ||||
Storage spaces for constructions | 15 | 100 | 250 | 1000 |
Own building materials | 3 | 100 | 100 | 100 |
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