Calculator
Basic calculator first, with Scientific mode and memory controls close by.
Memory
Memory empty
Close tools
Move into Money, Convert, Dates, or Currency from the left rail without leaving the workspace.
Money tools
Tips, bill splitting, discounts, tax, unit price, fuel cost, and loan payment estimates.
Convert
Unit Converter and Percentage Helper for the checks that show up during the day.
Dates
Count days, add offsets, and compare age differences.
Currency Converter
Fresh daily Frankfurter rates through a same-origin Callie endpoint. Your typed amount stays in the browser.