Math Calculators
Math calculators for percentages, averages, statistics, and everyday number problems.
Algebra Calculators
2 tools
Absolute Value Equation Calculator
Solve absolute value equations of the form |ax + b| = c. Finds all real solutions with step-by-step working, handles one solution, two solutions, and no-solution cases.
Absolute Value Inequalities Calculator
Solve absolute value inequalities of the form |ax + b| < c, ≤ c, > c, or ≥ c. Returns the solution in interval notation and inequality form with full step-by-step working.
Percentages Calculators
14 tools
Average Percentage Calculator
Find the average of multiple percentages. Supports weighted averages with different sample sizes for accurate results across unequal groups.
Fraction to Percent Calculator
Convert a fraction to a percentage instantly, or turn a percentage into a simplified fraction. Enter the numerator and denominator or type a percentage value.
Decimal to Percent Converter
Convert a decimal to a percentage or a percentage to a decimal instantly. Enter a decimal to get the percentage, or enter a percentage to get the decimal.
Doubling Time Calculator
Find how many periods it takes a quantity to double at a constant growth rate. Works for investments, populations, bacteria, and any exponentially growing quantity.
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Math calculators help you work through percentages, averages, and everyday number problems quickly and accurately.
Last updated: July 03, 2026