# How to Calculate MPH From Engine RPM?

RPM is an acronym that stands for revolutions per minute. Specifically, it expresses the number of times a motor makes a complete revolution in a one-minute period. RPM has a direct influence on th... Read More »
http://www.ehow.com/how_6225251_calculate-mph-engine-rpm.html

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## How to Calculate the CCs on a Motorcycle Engine?

For more than a century, the cubic centimeter has been the unit of choice for measuring a motorcycle's engine displacement--the amount of air that is moved by the engine's pistons within a single r... Read More »
http://www.ehow.com/how_6607376_calculate-ccs-motorcycle-engine.html

## How to Calculate Engine Hours?

"Engine hours" refers to the number of hours that your engine has been running since it was new. Many construction vehicles, trucks or other vehicles that spend a lot of time idling have a meter ... Read More »
http://www.ehow.com/how_5852285_calculate-engine-hours.html

## How to Calculate Engine Compression?

The compression of an engine is expressed in a ratio that says how many units of volume from the cylinder with the piston at the bottom dead center are squeezed into a unit of space in the compress... Read More »
http://www.ehow.com/how_5017368_calculate-engine-compression.html

## How to Calculate an Engine's BTUs?

A British thermal unit, or BTU, is a unit of energy defined as the heat required to raise the temperature of 1 pound of water by 1 degree Fahrenheit. To calculate the BTU of an engine, you would co... Read More »
http://www.ehow.com/how_7539442_calculate-engines-btus.html

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