Length and width can be entered in two different units such as foot and inch or even meter and inch if you will. The resulting area may also be in any unit system.

Length and width can be in following units
- Kilometer
- Meter
- Centimeter
- Millimeter
- Micrometer
- Nanometer
- Mile
- Yard
- Foot
- Inch

Area can be in following units
Square kilometer
Square meter
Square mile
Square yard
Square foot
Square inch
100 Square foot (Kyinn)
Hectare
Acre

The term Kyinn in Myanmar language is used specifically in Myanmar to represent 100 square foot, and it's also included as one of the options for the area.