# How to calculate the rise & slope of a ramp

Written by mark kennan
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A ramp is a slanted surface that smoothly connects a lower elevation to a higher elevation. The slope of the ramp is how much your elevation increases per foot you travel forward. The rise is the overall increase in the elevation at the end of the ramp versus the start of the ramp. To calculate the rise in the ramp, you need to know the angle of incline and the length of the ramp. To calculate the slope, you need to know the length of the ramp and the rise.

Skill level:
Easy

### Things you need

• Calculator
• Measuring tape
• Protractor

## Instructions

1. 1

Measure the length of the ramp.

2. 2

Measure the ramp's incline by placing the protractor at the bottom of the ramp and checking the angle.

3. 3

Calculate the sine of the slope from Step 2. For example, if the slope was 30 degrees, you would calculate sine(30) by typing in "30" on the calculator and then pressing the "SIN" button. The result would be 0.5.

4. 4

Multiply the result from Step 3 by the length of the ramp to calculate the rise. Finishing this example, if the length of the ramp were 10 feet, the rise would be 5 feet.

1. 1

Measure the length of the ramp.

2. 2

Measure the rise of the ramp.

3. 3

Divide the rise of the ramp by the length of the ramp. For example, if the rise was 5 feet and the distance was 10 feet, you would get 0.5. A slope of 0.5 means that for every foot you travel forward, your elevation is increasing by 0.5 feet.

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