Maths & Stats Calculators
Percentage, fraction, ratio, statistics and geometry calculators.
55 calculators in this category
Area Calculator Circle/square/triangle/rectangle. Average (Mean) Calculator Arithmetic mean. Circle Calculator Area, circumference, diameter. Combination Calculator nCr. Cube Root Calculator Real cube root. Decimal to Fraction Calculator Convert decimal. Distance Between Points Calculator Coordinate distance. Exponent Calculator Power of a number. Factorial Calculator n! Fraction Calculator Add/sub/mul/div fractions. Fraction to Decimal Calculator Convert fraction. Fraction to Percentage Calculator Convert fraction. GCF / HCF Calculator Highest common factor. LCM Calculator Lowest common multiple. Logarithm Calculator log base n. Long Division Calculator Stepwise division. Mean Median Mode Calculator All three + range. Midpoint Calculator Midpoint of a line. Mixed Number Calculator Mixed number arithmetic. Modulo Calculator Remainder operation. Percentage Calculator What is X% of Y, X is what % of Y. Percentage Change Calculator Signed % difference. Percentage Decrease Calculator % change down. Percentage Difference Calculator Symmetric % difference. Percentage Increase Calculator % change up. Percentage of a Number Simple X% of Y. Percentage Off Calculator Discount/sale price. Percentile Calculator Nth percentile of a dataset. Perimeter Calculator Various shapes. Permutation Calculator nPr. Prime Number Calculator Prime check + factors. Probability Calculator Single + combined events. Proportion Calculator Solve a/b = c/d. Pythagorean Theorem Calculator Hypotenuse / side. Quadratic Equation Calculator Roots via formula. Ratio Calculator Simplify + solve ratios. Ratio to Fraction Calculator Convert ratio. Ratio to Percentage Calculator Convert ratio. Reverse Percentage Calculator Original before % applied. Roman Numeral Converter Numbers <-> Roman. Rounding Calculator Round to dp / sig figs. Scale Calculator Model scale conversion. Scientific Calculator Full function calculator. Scientific Notation Calculator Standard form. Significant Figures Calculator Count + round to sig figs. Simplify Fractions Calculator Reduce to lowest terms. Slope Calculator Gradient between two points. Square Root Calculator Principal + simplified surd. Standard Deviation Calculator Population + sample SD. Surface Area Calculator 3D shapes. Triangle Calculator Sides/angles/area. Variance Calculator Population + sample variance. Volume Calculator 3D shapes. Weighted Average Calculator Sum(w*x)/sum(w). Z-Score Calculator Standard score.