Maths calculators
Geometry, arithmetic, statistics and scientific calculations made clear.
Maths and geometry, made simpler
Explore focused maths tools, from fractions and statistics to area and volume. Choose a shape for a dedicated calculator with diagrams and labelled inputs.
Explore focused maths tools, from fractions and statistics to area and volume. Choose a shape for a dedicated calculator with diagrams and labelled inputs.
Percentage Calculator
Three clear calculators for common percentage questions.
MathsAspect Ratio Calculator
Resize image and video dimensions proportionally.
MathsFraction Calculator
Simplify and calculate with fractions.
MathsRatio Calculator
Simplify ratios and scale proportions.
MathsAverage, Median & Mode Calculator
Find the mean, median, mode, range and sum.
MathsStandard Deviation Calculator
Calculate population and sample standard deviation.
MathsRoman Numeral Converter
Convert whole numbers and Roman numerals.
MathsNumber Base Converter
Convert binary, octal, decimal and hexadecimal integers.
MathsProbability Calculator
Calculate event probability, odds and complementary chance.
MathsArea Calculator
Calculate the area of common two-dimensional shapes.
MathsVolume Calculator
Calculate volumes of boxes, cylinders, spheres and cones.
MathsScientific Calculator
Calculate powers, roots, trigonometry and logarithms.
MathsRectangle Area Calculator
Calculate rectangle measurements using l × w.
MathsTriangle Area Calculator
Calculate triangle measurements using Heron’s formula.
MathsCircle Area Calculator
Calculate circle measurements using πr².
MathsTrapezoid Area Calculator
Calculate trapezoid measurements using (a + b)h / 2.
MathsParallelogram Area Calculator
Calculate parallelogram measurements using bh.
MathsEllipse Area Calculator
Calculate ellipse measurements using πab.
MathsCircle Sector Area Calculator
Calculate circle sector measurements using πr²θ / 360.
MathsCube Volume Calculator
Calculate cube measurements using s³.
MathsRectangular Prism Volume Calculator
Calculate rectangular prism measurements using lwh.
MathsCylinder Volume Calculator
Calculate cylinder measurements using πr²h.
MathsSphere Volume Calculator
Calculate sphere measurements using 4πr³ / 3.
MathsCone Volume Calculator
Calculate cone measurements using πr²h / 3.
MathsSquare Pyramid Volume Calculator
Calculate square pyramid measurements using b²h / 3.
MathsCapsule Volume Calculator
Calculate capsule measurements using πr²h + 4πr³ / 3.
MathsConical Frustum Volume Calculator
Calculate conical frustum measurements using πh(R² + Rr + r²) / 3.
MathsEllipsoid Volume Calculator
Calculate ellipsoid measurements using 4πabc / 3.
MathsSpherical Cap Volume Calculator
Calculate spherical cap measurements using πh²(3R − h) / 3.
MathsHollow Cylinder Volume Calculator
Calculate hollow cylinder / tube measurements using πh(R² − r²).
Maths