Fall to Gradient Calculator
Enter your values below and press calculate.
Enter your values above to see the result.
Formula used
Gradient % = fall ÷ length × 100. Fall is converted from mm to m. Ratio = 1 in (length ÷ fall).
Example
300mm fall over 30m is 1%, equivalent to 1 in 100.
Important note
Check whether your drawings/specification state gradient as %, ratio or level difference.