Enter the ramp height (ft) and the ramp angle (degrees) into the Ramp Length Calculator. The calculator will evaluate the Ramp Length. 

Ramp Length Formula

The following two example problems outline the steps and information needed to calculate the Ramp Length.

RL = H / SIN(a)
  • Where RL is the Ramp Length (ft)
  • H is the ramp height (ft) 
  • a is the ramp angle (degrees) 

To calculate the ramp length, divide the ramp height by the sine of the ramp angle.

How to Calculate Ramp Length?

The following example problems outline how to calculate Ramp Length.

Example Problem #1:

  1. First, determine the ramp height (ft).
    • The ramp height (ft) is given as: 4.
  2. Next, determine the ramp angle (degrees).
    • The ramp angle (degrees) is provided as: 30.
  3. Finally, calculate the Ramp Length using the equation above: 

RL = H / SIN(a)

The values provided above are inserted into the equation below and computed.

RL = 4 / SIN(30deg) = 8.00 (ft)

Example Problem #2: 

For this problem, the variables required are provided below:

ramp height (ft) = 6

ramp angle (degrees) = 45

Test your knowledge using the equation and check your answer with the calculator..

RL = H / SIN(a) = ?