RampCalc Ramp Length & Slope Calculator
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Ramp Length & Slope Calculator

Calculate a ramp’s horizontal run, slope (grade), or rise from two known values.

Calculate Your Ramp

Choose what to calculate and enter the values.

Vertical height from the lower to the upper level (e.g., 0.60 m = 60 cm).

%

Ramp steepness (e.g., 8% = 8 cm rise per 1 m of length).

Wheelchair Access to a Building Slope (Grade)8% Ramp Length7.50 m Rise (Height)0.60 m
About the visualizationThe photo is an example. The triangle shows the calculated horizontal run, rise, and grade.

How to Use

Calculate your ramp in three simple steps.

1

Enter or Select

Choose what to calculate (length, slope, or rise) and enter the required values.

2

Calculate

Click the Calculate button to instantly get the ramp result and updated diagram.

3

Review & Share

Check the results and diagram, then use Share or Copy Link to save or send your calculation.

Reference Guide

Formulas and practical notes for understanding ramp geometry.

Calculation Formulas

  • Ramp Length (L) = H ÷ (S ÷ 100)
  • Slope (S) = H ÷ L × 100%
  • Rise (H) = L × (S ÷ 100)
ExampleRise: 0.60 m, Slope: 8%Length = 0.60 ÷ 0.08= 7.50 m

Example Slope (Grade)

Use CaseSlopeRatio (Rise:Run)
Wheelchair access (example)≤ 8%1:12.5
General public access≤ 10%1:10
Short distance / limited space≤ 12%1:8.3

Notes & Tips

  • A gentler slope may be more comfortable, especially for wheelchair users.
  • Examples only; not universal design limits. Check local rules.
  • Consider a slip-resistant surface, suitable width, and handrails.

Real-world Examples

See how to apply the calculator in real situations.

Wheelchair Access to a Building
Example 1

Wheelchair Access to a Building

Rise (Height)
0.60 m (60 cm)
Target Slope
8%
Ramp Length (Result)
7.50 m

Use Case
A common ramp for wheelchair access at an entrance.

Loading Ramp for a Small Cart
Example 2

Loading Ramp for a Small Cart

Rise (Height)
0.40 m (40 cm)
Target Slope
10%
Ramp Length (Result)
4.00 m

Use Case
A practical ramp for moving carts or light equipment.

Gentle Ramp for an Outdoor Path
Example 3

Gentle Ramp for an Outdoor Path

Rise (Height)
0.20 m (20 cm)
Target Slope
5%
Ramp Length (Result)
4.00 m

Use Case
A gentle, comfortable ramp for general pedestrian use.

FAQ

Frequently asked questions about ramp length and slope calculation.

Horizontal run equals rise divided by grade as a decimal. For 0.60 m at 8%, the run is 7.50 m.