You can use these calculators to convert force, inertia, velocity units, and more..

Interactive Engineering Tools - Unit Conversion ~ Custom Fan Design, Thermal Transfer Products ~ The Bergquist Company

Moment of Force Conversion Table

Moment of Inertia Conversion Table

Spacific Volume Conversion Table

Velocity - Angular Conversion Table

Velocity Conversion Table

iPhone and iPod calculators

Engineering Unit Calculator App for iPad, iPhone - Reference - app by John McLemore - LisiSoft.com
This app converts typical engineering units.

iPad calculators

Engineering Unit Calculator App for iPad, iPhone - Reference - app by John McLemore - LisiSoft.com
This app converts typical engineering units.