Slope Meter: Inclinometer

Measure slopes, check angles and find level with Slope—your practical toolkit for DIY, caravanning, landscaping and cycling.
Use your phone’s sensors as a slope meter, inclinometer, bubble level and magnetic compass. The built-in gradient calculator helps you convert between angles, percentage gradients and rise-to-run ratios.
SLOPE METER & INCLINOMETER
Place your phone’s long edge along a surface to measure its inclination. Switch between degrees and percentage gradient, with slope ratio and cross-slope readings displayed alongside.
SURFACE & BUBBLE LEVEL
Check two axes at once using the responsive bubble level. Adjust the level tolerance, enable gentle haptic feedback and open the full-screen view for easier reading.
GRADIENT CALCULATOR
Enter rise and horizontal run, an angle or a percentage gradient to see the equivalent values. Work with metric or imperial dimensions and understand the result with a visual slope diagram.
MAGNETIC COMPASS
Check your bearing and direction using your phone’s sensors. The compass references magnetic north and requires no location permission.
HOLD, SAVE & CALIBRATE
• Hold a reading before moving your phone.
• Save up to 100 readings with their date and time.
• Review and delete measurements in your history.
• Set a custom reference zero and reset calibration when needed.
• Keep your preferred units and settings between sessions.
MADE FOR EVERYDAY PROJECTS
Hang a shelf, check a workbench, level a caravan or measure a garden slope. Clear instruments, large readings and a dark interface keep the information easy to see.
Works offline, with no advertising or account required.
Live measurements require compatible device sensors. For best results, keep your phone still and remove cases that prevent it sitting flat. Readings depend on your device, calibration and magnetic interference.