These are a collection of web-based javascript calculators that are mobile friendly. An abbreviated list of the calculators are as follows:
- Unit Conversions
 - Hydrulic Piston Force and Speed
 - Winch Force and Speed
 - Winch Drums
 - Motion & Dynamics
 - ANSI Chain Values, Ratings, Sprocket Distance
 - Bearing PV
 - Shock Load Forces
 - Etc…
 
How to Use
You can find the web-based calculators here: Calculators
The source is on github in the following repo: Calculators Repo
Documentation for the calculators formulae and assumptions are here: Calculators Formulae