Old Dog Compass

Free measurement tool

Dog ramp angle calculator

Compare a ramp’s length with the height of your car, SUV, bed or step. Use the result to shortlist products before checking the manufacturer’s instructions.

Calculated setup angle

23.6°Approximate horizontal space: 64.2 inches

This calculation compares geometry only. It does not determine whether an angle is safe for your dog. Follow the ramp maker’s height guidance and consider grip, stability, width and your dog’s current movement.

Measure before calculating

  1. Park on level ground. Vehicle angle changes the real setup.
  2. Measure vertically. Go from the ground to the exact point where the ramp rests.
  3. Use walking-surface length. Do not use the folded storage dimension.