Enter the original engine power (HP) and the total altitude (ft) into the HP Loss at Altitude Calculator. The calculator will evaluate the HP Loss at Altitude.

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## HP Loss at Altitude Formula

The following two example problems outline the steps and information needed to calculate the HP Loss at Altitude.

HPL = EP * A/1000 *.03

Variables:

- HPL is the HP Loss at Altitude (HP loss)
- EP is the original engine power (HP)
- A is the total altitude (ft)

To calculate HP loss at altitude, multiply the original power (HP) by the total altitude, divide by 1,000, then finally multiply by .03.

## How to Calculate HP Loss at Altitude?

The following steps outline how to calculate the HP Loss at Altitude.

- First, determine the original engine power (HP).
- Next, determine the total altitude (ft).
- Next, gather the formula from above = HPL = EP * A/1000 *.03.
- Finally, calculate the HP Loss at Altitude.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

original engine power (HP) = 300

total altitude (ft) = 5000

HPL = EP * A/1000 *.03** **= ?