XCalc.io Calculator + History

XCalc.io is a readability-first calculator and converter built around a simple promise: numbers should never be hard to see or use. Calculation, conversion, camera-scanned and pasted numbers, editable work, History, and Memory come together in one clear workflow. Calculate and convert Handle everyday calculations, convert currencies and units, and use Quick Calculators for common tasks. Enter numbers faster Paste numbers from copied text, or use Camera Number Scanner to scan, review, tap, and insert numbers into XCalc. Quick Calculators Use focused calculators for Bill / Tip, VAT / Tax, Price Change, Savings, Loan, Interest, Speed, Fuel, and Date. Editable math expressions Use Math Mode to build editable expressions with fractions, roots, powers, constants, logarithms, trigonometric functions, and supported scientific-style functions. Keep useful work close Use History and Memory to revisit calculations, reuse saved values, copy results, and share useful work. Readable, your way Low Vision Mode, larger text, stronger font weight, button-shape options, operation-key emphasis, and high-contrast appearance choices help make XCalc easier to read. Across your Apple devices Use XCalc on iPhone, iPad, and Apple silicon Mac. On iPad and Apple silicon Mac, supported external-keyboard input and discoverable Command shortcuts make calculation, editing, and switching workflows faster. On Apple Watch, keep everyday calculations close with a focused four-operation calculator. See the expression and live result, edit with the Digital Crown, undo or redo changes, and reuse calculations from Watch History.