# calculating new displacement

**URL:** https://forums.speedlife.net/t/calculating-new-displacement/24908
**Category:** NYSpeed Automotive
**Created:** [February 21, 2007, 7:17pm UTC](https://forums.speedlife.net/t/calculating-new-displacement/24908 "2007-02-21T19:17:05Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![fairgentleman\_Z](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fairgentleman_z/32/7263_2.png) [@fairgentleman\_Z](https://forums.speedlife.net/u/fairgentleman_Z)
#### Post date: [February 21, 2007, 7:28pm UTC](https://forums.speedlife.net/t/calculating-new-displacement/24908/2 "2007-02-21T19:28:35Z")

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r^2 or (d/2) ^ 2

pi \* r^2 = area

area \* stroke = volume

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