Enter any u-value into the calculator to convert it into the equivalent RSI value.

- Floor to Area Ratio Calculator
- Gross Floor Area Calculator
- RSI (Relative Strength Index) Calculator
- U Value of Ground Floor Calculator

## U Value to RSI Formula

The following equation is used to calculate the RSI from the U-value.

RSI = 1/U

- Where RSI is the thermal resistance per unit area
- U is the u-value