Prime Number Checker
Check whether a number is prime and list basic divisibility facts.
Math Tools
Solve common number, algebra, geometry, statistics, ratio, and sequence tasks.
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Factor Calculator
Find all positive factors of a whole number.
GCD LCM Calculator
Calculate the greatest common divisor and least common multiple for numbers.
Fraction Simplifier
Reduce fractions to their simplest form.
Decimal to Fraction
Convert decimal numbers into simplified fractions.
Fraction to Decimal
Convert a fraction into decimal form with percentage output.
Scientific Notation Converter
Convert standard numbers to scientific notation and back.
Random Number Generator
Generate random integers within a selected range.
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GCD LCM Calculator
Calculate the greatest common divisor and least common multiple for numbers.
Math ToolsRounding Calculator
Round numbers to decimal places, nearest tens, hundreds, or custom increments.
Math ToolsTriangle Area Calculator
Calculate triangle area using base and height or Heron's formula.
Math ToolsCylinder Volume Calculator
Calculate cylinder volume, curved surface area, and total surface area.
Math ToolsStandard Deviation Calculator
Calculate population and sample standard deviation from a number list.
Math ToolsPercentage Change Calculator
Calculate increase or decrease percentage from old and new values.
Math Tools
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Engineering & Construction Tools
25 tools - Convert technical units and estimate common construction quantities directly in the browser.
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Unit Converters
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About Math Tools
ConvertA2Z keeps math tools simple, fast, and mobile-friendly. Each live tool is built around a focused workflow, clear input fields, visible output actions, and related tools so users can move to the next task without searching again.
More advanced server-side conversion, OCR, AI, and media processing features can be added in later phases after backend processing and file retention policies are finalized.