What it does
Windows Calculator includes arithmetic modes, calculation history, memory, unit conversion and date calculations.
Windows Calculator's Standard mode evaluates commands as entered, while Scientific mode uses order of operations. History and memory reuse intermediate values; the date mode compares dates or adds/subtracts years, months and days. The Microsoft Store release also converts units and currencies. Its MIT source repository has important build differences: developer builds use mock currency data and lack the proprietary graphing engine, so building the public code does not reproduce every retail feature. Microsoft also documents usage-data collection, disabled by default in development builds. The repository's arbitrary-precision claim is scoped to basic arithmetic, rather than every scientific function.
Strengths
- Calculation history and memory
- Separate programmer and date tools
Watch out for
- Standard and Scientific modes use different evaluation behavior
Best for
- Everyday Windows calculations and date differences