ModelScale is a handy tool for anyone who needs to design a scaled model. It is ideal for Civil Engineers, Architects, or hobbyist train/house model makers who are always on the go. It features:

- Two-way conversions for all common units and scales.
- The ability to add custom scales.
- A detailed history of past conversions, with the option to load any of the calculations.
- Project management (A certain unit/scale conversion can be set across a list of components with different input measurements).
- Fraction mode for inches and feet.
- Feet and inches (x'y") input and output supported.