Calculator library
Free Math Calculators
Choose a tool below. Each calculator includes the formula and a short explanation.
Choose a tool below. Each calculator includes the formula and a short explanation.
Percent of a number, what percent, and percent change.
Open calculator →Add, subtract, multiply, divide and simplify fractions.
Open calculator →Simplify a ratio and view its decimal relationship.
Open calculator →Find slope from two coordinate points and derive the line equation.
Open calculator →Find the midpoint between two coordinate points.
Open calculator →Find the straight-line distance between two coordinate points.
Open calculator →Solve quadratic equations and classify roots.
Open calculator →Find a missing side of a right triangle.
Open calculator →Summarize a data set with central tendency and range.
Open calculator →Convert between standard form and scientific notation.
Open calculator →Calculate GPA from grade points and course credits.
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