About This Tool

The SiteFacts Slope Calculator is built for builders, estimators, and site evaluators who need fast, reliable field measurements. Calculate percent grade, angle in degrees, and run-to-rise ratio from any two elevation readings or a single change in elevation.

Two input modes: enter start and end elevations, or enter change in elevation directly. Feet and meters supported. Results are instant.

Need the full picture on a parcel before you bid? SiteFacts pulls permits, zoning, slope data, utilities, and site constraints for any property.