Use horizontal run, not inclined length

Rise over run calculator

Keep rise and horizontal run distinct, normalize their units, and inspect every equivalent slope representation.

Private browser calculation

Choose the known representation

Stays on this page

Calculation mode

Known values and units

Rise may be signed; horizontal run must be positive.

SlopeCalc handles ideal geometric slope only. It does not determine permissible grades, building-code compliance, accessibility, drainage, traction, structural design, or measurement uncertainty.