ClearCalc

Calculate everyday expressions and explore scientific functions with a calculator designed for clear, focused use. Everyday calculations Use addition, subtraction, multiplication, division, decimals, signs, parentheses, percentages, and powers. See a live preview as you type, then review the completed expression and result. Continue from a result or load a saved expression to edit it again. Scientific functions Calculate squares, square roots, powers, reciprocals, absolute values, sine, cosine, tangent, and natural logarithms. Choose degrees or radians and see the active angle unit while calculating. Percentage tools Find a percentage of a value, calculate the percentage change between two values, or work backward from a reduced value to its original amount. Each result includes the input relationship and formula. These are arithmetic tools, not financial or tax advice. History and preferences Review expressions, results, calculation modes, and timestamps in local history. Copy a result, reopen an expression for editing, remove individual entries, or clear history after confirmation. Pin frequently used results to the home screen. Choose a display precision from 2 to 12 decimal places or use automatic significant digits. Optional thousands separators, light key feedback, adjustable text size, and light, dark, or system appearance help tailor the display. Calculations, drafts, history, pinned results, and preferences are handled locally on the device. No account or network connection is needed for calculator features.