Every screen, button, and setting in Scale-o-Tron, explained in detail. Looking for a faster tour instead? Try the Quick Overview.
The result field, its unit and scale, and the expression row above it.
Choosing what a conversion or calculation resolves to.
Choosing what you're measuring in.
AC, C, and delete.
Whole/numerator/denominator entry and the decimal-to-fraction shortcut.
Arithmetic, square, square root, percent, and scientific notation.
Reviewing and copying past conversions and calculations.
Switching calculators and finding the rest of these settings.
Adding, editing, favoriting, and deriving custom scales.
Choosing your measure and result units.
Result format, decimal precision, and fraction rounding.
Turning on operators and other options.
Resizing the keypad and display, and hiding the history tape.
Contacting us and version update history.