Mathematics Calculators

Calculate percentages, percent change, discounts, increases, and reverse percentages.

Add, subtract, multiply, divide, simplify, and compare two fractions.

Calculate circle area and circumference from radius.

Calculate triangle area from base and height.

Calculate the average of four values.

Calculate discriminant and real roots for a quadratic equation.

Convert decimal values to percentages, fractions, and rounded numbers.

Compare, simplify, scale, and distribute values for ratio.

Compare, simplify, scale, and distribute values for ratio simplifier.

Compare, simplify, scale, and distribute values for equivalent ratio.

Compare, simplify, scale, and distribute values for ratio to percentage.

Compare, simplify, scale, and distribute values for percentage to ratio.

Compare, simplify, scale, and distribute values for proportion.

Calculate the median of three values with comparison outputs.

Find the repeated value in a three-value dataset.

Round numbers to whole numbers, tens, hundreds, or decimal precision.

Compare two values by difference, ratio, and percentage difference.

Solve a linear equation of the form ax + b = c.

Calculate slope, intercept, and value for a linear equation y = mx + b.

Evaluate a polynomial ax^3 + bx^2 + cx + d.

Find greatest common factor and reduced factor pair values for two integers.

Solve a 2x2 linear system a1x + b1y = c1 and a2x + b2y = c2.

Calculate rectangle, triangle, and circle area from common dimensions.

Calculate perimeter or circumference for rectangles, triangles, and circles.

Calculate rectangular prism, cylinder, cone, and sphere volume.

Calculate surface area for boxes, cylinders, and spheres.

Calculate triangle area, perimeter, and semi-perimeter from side lengths.

Calculate circle area, circumference, and diameter from radius.

Calculate rectangle area, perimeter, and diagonal.

Calculate square area, perimeter, and diagonal.

Calculate cylinder volume, lateral area, and surface area.

Calculate cone volume, slant height, and surface area.

Calculate sphere volume, surface area, and diameter.

Calculate sine from degrees and radians.

Calculate cosine from degrees and radians.

Calculate tangent from degrees and radians.

Calculate inverse sine, inverse cosine, and inverse tangent in degrees.

Calculate missing angle and angle conversions for triangles.

Convert degrees to radians and radians to degrees.

Calculate arithmetic mean for three values.

Calculate population variance and standard deviation for three values.

Calculate population variance for three values.

Calculate probability, odds in favor, odds against, and expected successes.

Calculate permutations where order matters.

Calculate combinations where order does not matter.

Calculate z-score from value, mean, and standard deviation.

Estimate confidence interval from mean, standard deviation, sample size, and z value.

Calculate percentages, percent change, discounts, increases, and reverse percentages.

Add, subtract, multiply, divide, simplify, and compare two fractions.

Use a keyboard-friendly scientific calculator with trig, logs, powers, constants, and memory.

Calculate the hypotenuse and area of a right triangle.

Calculate logarithms for any positive base and value.

Calculate powers and exponential values quickly.

Calculate sphere volume and surface area from radius.

Calculate gross profit margin from revenue and cost.