All data can be entered into Speed-Wiz in the English or Metric measurement units.
Default units of measure can be switched by selecting a menu item
...or by clicking on the measurement indicator in the status bar.
In English mode, all inputs come up in English measure.
In Metric mode, all inputs come up in Metric measure.
Inputs can be also changed individually by clicking.
All data values are always automatically converted regardless of which method of switching you use.