Slope Calculator: Rise & Run

Content rating
Everyone
5+
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Content rating
Everyone
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About this app

Convert slope measurements without juggling formulas in the field.

Slope Calculator: Rise & Run gives builders, roofers, landscapers, survey helpers and DIY users every common slope format from one measurement. Enter the values you know and instantly see grade percentage, angle, rise, run, slope length, ratio and roof pitch.

FOUR WAYS TO CALCULATE

• Rise and run
• Grade percentage and run
• Angle and run
• Roof pitch and run

EVERY RESULT IN ONE PLACE

See grade, degrees, 1:x ratio and x:12 roof pitch together. The app also calculates vertical rise and diagonal slope length, so you can translate between plans, tools and job-site conventions.

BUILT FOR FIELD USE

• Millimeters, centimeters, meters, inches and feet
• Upward, downward and level slopes
• Save named measurements for repeat jobs
• Copy or share a complete result
• Choose 0–4 decimal places
• Clear visual slope diagram
• Built-in guide to grade, angle, ratio and pitch

PRIVATE AND OFFLINE

No account is required. The app contains no ads, analytics or tracking and does not request Internet access. Saved measurements remain on your device.

Results are field estimates. Verify critical construction, drainage, ramp and structural work against qualified plans, local codes and site measurements.
Calculate slope, grade, pitch, rise, run and angle in metric or imperial units.
Updated on
Aug 14, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

What’s new

Initial release.

• Convert rise, run, grade, angle, ratio and roof pitch
• Use metric or imperial units
• Save named measurements for repeat jobs
• Copy and share complete slope results
• Learn common slope formats in the built-in guide