ClearArithmetic

Clear arithmetic tools for everyday numbers, all available offline.

Work through basic expressions with addition, subtraction, multiplication, division, decimals, signs, parentheses, and percentages. A live preview helps you check an expression before saving its result.

Explore scientific functions including powers, square roots, reciprocals, absolute values, trigonometry, logarithms, pi, and e. Choose degrees or radians for trigonometric calculations.

Use three focused percentage tools to find a percentage of an amount, calculate percentage change between two values, or work backward from a discounted value. Each tool shows the relationship and formula used.

Your recent calculations, editable draft, preferences, and pinned results stay on your device. Reopen an expression from history, copy a result, or remove saved entries whenever you choose. Adjust decimal precision, number grouping, text size, theme, and key feedback to suit your preferences.

Calculations are provided as general-purpose arithmetic and are not financial, tax, or investment advice. Results are evaluated locally without an account or cloud synchronization.