# RPM calculator

**URL:** <https://forums.speedlife.net/t/rpm-calculator/186065>\
**Category:** PittSpeed Automotive\
**Created:** [November 6, 2006, 4:04am UTC](https://forums.speedlife.net/t/rpm-calculator/186065 "2006-11-06T04:04:54Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Quik](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/quik/32/5979_2.png) [@Quik](https://forums.speedlife.net/u/Quik)\
**Post date:** [November 6, 2006, 4:04am UTC](https://forums.speedlife.net/t/rpm-calculator/186065/1 "2006-11-06T04:04:54Z")

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[http://www.angelfire.com/fl/procrastination/rear.html](http://www.angelfire.com/fl/procrastination/rear.html)

use this if you need to know your RPMs or mph youll be at with a given tire height and gearing