7.7.3. Raster calculator
The raster calculator is a very flexible and useful tool to combine raster images with conditional and trigonometric expressions and any other task that requires raster math operations. It can be found within the menu Raster > Raster calculator. The formula “ASTER30_dem_CH1903@1 * 3.28084” would convert the elevation data in the DEM from meters into feet by creating a new raster image (with an elevation range from 1,332 to 2,982 feet).