Ramp Calculator

 
 

Power Chair / Scooter Loading Ramp Calculator
   
Verticle Rise Inches
(Vertical height of the loading surface to the ground in inches)
   
   
Recommended Ramp Length Foot Ramps
(Ramp Length needed to load a Power chair / scooter when not occupied)
   
Note: Please use this ramp calculator ONLY AS A GUIDE.

Refer to your equipment’s User Guide for exact recommendations concerning acceptable usage and incline/decline.
 

Choose the right ramp for the right application
 
You can use this handy incline chart to determine the proper ramp length for you.
 
              16.50 34" Rise (in
Inches)
              15.50 32"
              14.50 30"
            170 13.50 28"
            15.70 12.50 26"
          16.60 14.50 11.50 24"
          15.20 13.20 10.60 22"
        16.10 13.80 120 9.60 20"
        14.50 12.40 10.80 8.60 18"
      15.50 12.80 110 9.60 7.70 16"
    170 13.50 11.20 9.60 8.40 6.70 14"
    14.50 11.50 9.60 8.20 7.20 5.70 12"
  16.10 120 9.60 80 6.80 60 4.80 10"
  14.50 10.80 8.60 7.20 6.20 5.40 4.30 9"
  12.80 9.60 7.70 6.40 5.50 4.80 3.80 8"
170 11.20 8.40 6.70 5.60 4.80 4.20 3.30 7"
14.50 9.60 7.20 5.70 4.80 4.10 3.60 2.90 6"
120 80 60 4.80 40 3.70 30 2.40 5"
9.60 6.40 4.80 3.80 3.20 2.70 2.40 1.90 4"
7.20 4.80 3.60 2.90 2.40 20 1.80 1.40 3"
2' 3' 4' 5' 6' 7' 8' 10'    
                   
Ramp Length (in Feet)
 
  • Determine incline your Power chair or scooter is designed to climb.
  • Measure the distance from the top step or landing to the ground (RISE).
  • Refer to the incline chart to find the proper ramp length.
  • At any incline use ramp only with a qualified helper.
 
 

The ADA (Americans with Disabilities Act) recommends:
  • 1:12 slope, that is 1 foot of ramp for every 1" of rise.  This will work for all self powered manual wheelchairs.
  • 2:12 slope, or 1 foot of ramp for every 2" rise is recommend for a strong armed manual wheelchair operator, or with an able assistant pushing.  This will also work with powered chairs and scooters.
  • 3:12 slope, or 1 foot of ramp for every 3" rise works with most power chairs and scooters, however you should check your chair's owners manual for maximum slope guidelines as this slope may cause clearance problems at the top of the ramp for low. 

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