Math

Percentages, fractions, averages, equations and a scientific calculator.

• Percentage CalculatorThree percentage questions: X% of Y, X is what percent of Y, and X is Y% of what number.
• Fraction CalculatorAdd, subtract, multiply and divide two fractions, with simplification, mixed number and decimal value.
• Ratio and Proportion CalculatorFind the missing term in a : b = c : d, or reduce a ratio to its simplest form.
• Mean, Median and Mode CalculatorEnter a list of numbers to get the mean, median, mode, range and standard deviation.
• GPA and Grade Average CalculatorCalculate GPA on a 4.0 scale, 5.0 scale, percentages or your own scale, weighted by credit hours.
• Scientific CalculatorType any expression with trig functions, logarithms, powers and factorials and see the answer instantly.
• Quadratic Equation SolverSolve ax² + bx + c = 0 with real or complex roots, the discriminant and the vertex of the parabola.