Math Calculators
Percentages, algebra, geometry, and number tools
Percentage Calculator
Calculate percentages: find X% of Y, what percent X is of Y, or X is Y% of what.
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Percentage Change Calculator
Calculate the percentage increase or decrease between two values.
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Fraction Calculator
Add, subtract, multiply, and divide fractions with step-by-step results.
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Square Root Calculator
Calculate the square root or nth root of any number.
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Exponent Calculator
Calculate base raised to any power (base^exponent).
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Logarithm Calculator
Calculate natural log (ln), log base 10, or logarithm with any custom base.
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Scientific Notation Calculator
Convert numbers to and from scientific notation.
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Significant Figures Calculator
Count significant figures in a number and round to a specific number of sig figs.
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Quadratic Formula Calculator
Solve quadratic equations (ax² + bx + c = 0) and find the roots.
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Pythagorean Theorem Calculator
Find the missing side of a right triangle using a² + b² = c².
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Greatest Common Factor Calculator
Find the greatest common factor (GCF) of two numbers.
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Least Common Multiple Calculator
Find the least common multiple (LCM) of two numbers.
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Prime Factorization Calculator
Find the prime factors of any positive integer.
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Slope Calculator
Calculate the slope of a line between two points.
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Midpoint Calculator
Find the midpoint between two points on a coordinate plane.
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Distance Formula Calculator
Calculate the distance between two points on a coordinate plane.
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Area Calculator
Calculate the area of common shapes: circle, rectangle, triangle, and trapezoid.
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Circumference Calculator
Calculate the circumference of a circle from its radius or diameter.
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Volume Calculator
Calculate the volume of common 3D shapes: sphere, cylinder, cube, and cone.
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Average Calculator
Calculate the mean, median, and mode from a list of numbers.
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Weighted Average Calculator
Calculate the weighted average of values with different weights.
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Decimal to Fraction Calculator
Convert a decimal number to its simplest fraction form.
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Fraction to Decimal Calculator
Convert a fraction to its decimal and percentage equivalent.
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Mixed Number Calculator
Convert between mixed numbers and improper fractions.
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Proportion Calculator
Solve a/b = c/d for any missing value in a proportion.
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Ratio Calculator
Simplify ratios and scale them to a desired total.
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Golden Ratio Calculator
Calculate golden ratio relationships using phi (1.618...).
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Factorial Calculator
Calculate factorial (n!), double factorial (n!!), and subfactorial (!n).
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Triangle Calculator
Calculate triangle area, perimeter, and angles from three side lengths using Heron's formula and the law of cosines.
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Trapezoid Calculator
Calculate the area and perimeter of a trapezoid from its bases, legs, and height.
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Hexagon Calculator
Calculate the area, perimeter, and apothem of a regular hexagon from its side length.
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Circle Calculator
Calculate circle area, circumference, diameter, and radius. Solve from any known value.
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Ellipse Calculator
Calculate the area and approximate circumference of an ellipse from its semi-major and semi-minor axes.
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Arc Length Calculator
Calculate the arc length of a circle from its radius and central angle in degrees or radians.
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Sector Area Calculator
Calculate the area of a circular sector from its radius and central angle.
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Surface Area Calculator
Calculate the surface area of common 3D shapes: cube, sphere, cylinder, and cone.
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Perimeter Calculator
Calculate the perimeter of common shapes: rectangle, triangle, circle, and regular polygon.
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Cylinder Volume Calculator
Calculate the volume and surface area of a cylinder from its radius and height.
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Cone Volume Calculator
Calculate the volume and surface area of a cone from its radius and height.
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Sphere Volume Calculator
Calculate the volume and surface area of a sphere from its radius.
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Cube Calculator
Calculate the volume, surface area, and space diagonal of a cube from its side length.
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Law of Cosines Calculator
Solve a triangle using the law of cosines for SSS (three sides) or SAS (two sides and included angle) cases.
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Law of Sines Calculator
Solve a triangle using the law of sines for AAS (two angles + non-included side) or ASA (two angles + included side) cases.
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Trigonometry Calculator
Calculate sin, cos, tan, and their inverses (arcsin, arccos, arctan) for any angle.
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2x2 Matrix Calculator
Calculate the determinant, inverse, and product of 2x2 matrices.
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Dot Product Calculator
Calculate the dot product of two vectors in 2D or 3D, plus the angle between them.
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Cross Product Calculator
Calculate the cross product of two 3D vectors, including the resulting vector and its magnitude.
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Vector Calculator
Calculate vector magnitude, unit vector, addition, and subtraction for 2D or 3D vectors.
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Exponential Growth Calculator
Calculate exponential growth or decay using A = A0 * e^(kt).
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Compound Growth Rate Calculator
Calculate compound growth rate for any value over time (CAGR for general use).
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Doubling Time Calculator
Calculate doubling time using the Rule of 72 and the exact formula.
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Percent Error Calculator
Calculate percent error from experimental and theoretical values.
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Absolute Value Calculator
Calculate the absolute value and distance on the number line.
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Long Division Calculator
Perform long division with a step-by-step solution showing all work.
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Rounding Calculator
Round numbers to the nearest decimal place, significant figures, or integer.
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