Conversion Calculators - Online

[srdavo]

Here's what I use: http://www.onlineconversion.com/

Length/Distance is my favorite, but there's a calculator for nearly everything.

Watts to HP (& vice versa) can be figured in the Power section.

 

[Stan4d]

On behalf of at mathmatically challenged, and those of us who got lazy and forgot what we learned I thank you!