This calculator will calculate the difference in elevation from a slope in a percentage and a length in metres.

Example calculation

a 6 metres long garage floor requires a 2% slope

6 * 2% =
6 * ( 2 ÷ 100)  =
6 * 0.02 = 0.12 m

the difference in elevation for this garage floor equals 0.12 metres = 120 millimetres

Calculation

1. length in metres
2. slope in a percentage

Result

1. height difference in millimetres