Ramp Length Calculator


In engineering and construction, calculating the ramp length is crucial for accessibility and safety. A ramp allows individuals with mobility impairments to navigate elevation changes smoothly. This article presents a simple yet effective ramp length calculator.

How to Use

To utilize the ramp length calculator, follow these steps:

  1. Input the desired slope in percentage.
  2. Enter the vertical rise, typically measured in inches or centimeters.
  3. Click the “Calculate” button to obtain the required ramp length.


The formula for calculating ramp length is based on the Pythagorean theorem, where the ramp’s length (L) can be determined using the slope (S) and the vertical rise (R):

Example Solve

Let’s consider an example where the slope is 8% and the vertical rise is 24 inches.


Q: What is the acceptable slope for a wheelchair ramp?
A: The recommended slope for wheelchair ramps is between 1:12 and 1:20.

Q: How do I measure the vertical rise?
A: Measure the vertical distance between the upper and lower surfaces where the ramp will be installed.

Q: Is this calculator suitable for all types of ramps?
A: Yes, this calculator can be used for various ramp applications, including wheelchair ramps and access ramps for vehicles.


Incorporating a ramp length calculator simplifies the process of designing accessible infrastructure. By inputting slope and vertical rise, engineers and architects can quickly determine the appropriate ramp length for their projects, ensuring compliance with accessibility standards.

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