You can do exactly this with Monitor Distance - Horizontal. The value for MDH will vary depending on your monitor size, FOV etc, but if you switch the mode in the calculator to advanced you can see the exact crosshair distance for the entered value. Take a look a this example, I've just manually adjusted the MDH value until the "X centimeters crosshair movement" in the output is 5 cm, ending up at 16.73%. Do this for your configuration and it should be perfect!
https://www.mouse-sensitivity.com/?share=b82a14007da7346f015839f36012dd20
Make sure you enter the same Sensitivity 1 value for both hipfire and ADS.