Scientific calculator
Evaluate arithmetic, powers, parentheses and common scientific functions.
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Practical tools for everyday work. Convert, create, calculate, and keep things moving.
57 Results
Percentage calculator
Calculate a percentage of a number and the corresponding remainder.
Open toolPercentage change
Calculate absolute and percentage change between two values.
Open toolPart as percentage
Find what percentage one value represents of a total.
Open toolDiscount calculator
Find the sale price, savings and final price after tax.
Open toolTax / VAT calculator
Add tax to a net amount or extract tax from a gross amount.
Open toolTip & bill splitter
Calculate the tip and divide a bill equally.
Open toolUnit price comparison
Compare two packages using their price and quantity in the same unit.
Open toolCompound interest calculator
Project compound growth with optional end-of-month contributions.
Open toolFixed-rate loan calculator
Calculate a level monthly payment and total interest.
Open toolSimple interest calculator
Calculate interest without compounding.
Open toolAnnualized growth calculator
Calculate compound annual growth between positive start and end values.
Open toolReturn on cost calculator
Calculate profit and return relative to an initial cost.
Open toolInflation adjustment
Model future prices or purchasing power at an entered constant inflation rate.
Open toolBreak-even calculator
Find the unit sales needed to cover fixed costs.
Open toolMargin & markup calculator
Compare gross margin and markup from cost and sale price.
Open toolSalary ↔ hourly pay
Convert annual pay and hourly pay with your work schedule.
Open toolTrip fuel cost
Estimate fuel and cost from distance, consumption and unit price.
Open toolElectricity cost calculator
Estimate energy use and cost from appliance power and usage hours.
Open toolExact fraction calculator
Add, subtract, multiply or divide fractions with integer arithmetic.
Open toolDecimal to exact fraction
Turn a finite decimal string into a reduced exact fraction.
Open toolGCD & LCM calculator
Calculate the greatest common divisor and least common multiple of integers.
Open toolPrime number checker
Check whether an unsigned 64-bit integer is prime.
Open toolPrime factorization
Factor a positive integer up to one trillion.
Open toolPrime range generator
List prime numbers inside a bounded interval.
Open toolModular exponentiation
Compute a raised to b modulo m using exact integer arithmetic.
Open toolFactorial calculator
Calculate exact factorials with arbitrary-precision integers.
Open toolCombinations & permutations
Calculate n choose r and ordered selections without repetition.
Open toolFibonacci sequence
Generate the Fibonacci sequence starting with 0 and 1.
Open toolArithmetic sequence calculator
Calculate terms and the sum of an arithmetic sequence.
Open toolGeometric sequence calculator
Calculate terms and the sum of a geometric sequence.
Open toolDescriptive statistics
Calculate count, sum, mean, median, range and population/sample deviation.
Open toolWeighted average
Calculate an average with nonnegative weights.
Open toolPercentile calculator
Compute a percentile using linear interpolation between sorted observations.
Open toolZ-score calculator
Express a value as standard deviations from a mean.
Open toolLinear regression
Fit y = ax + b and calculate the Pearson correlation for paired data.
Open toolQuadratic equation solver
Solve ax² + bx + c = 0, including complex roots.
Open toolTwo-variable equation solver
Solve a two-equation linear system using determinants.
Open toolMatrix calculator
Add, subtract or multiply two numeric matrices.
Open toolMatrix transpose
Swap matrix rows and columns.
Open toolMatrix determinant
Calculate the determinant of a square matrix with pivoting.
Open toolMatrix inverse
Invert a nonsingular square matrix using Gauss–Jordan elimination.
Open toolPolynomial evaluator
Evaluate polynomial coefficients in descending order using Horner’s method.
Open toolNumber rounding
Round to decimal places or significant figures.
Open toolRatio simplifier
Reduce an integer ratio to its simplest form.
Open toolProportion calculator
Solve a : b = c : x for the missing fourth value.
Open toolCircle calculator
Calculate circle area and circumference from its radius.
Open toolTriangle from three sides
Calculate area, perimeter and angles from three valid side lengths.
Open toolRight triangle calculator
Find a hypotenuse or missing leg using the Pythagorean theorem.
Open toolRectangle calculator
Calculate rectangle area, perimeter, diagonal and aspect ratio.
Open toolSphere calculator
Calculate sphere volume and surface area from its radius.
Open toolCylinder calculator
Calculate cylinder volume, curved area and total surface area.
Open toolCone calculator
Calculate a right circular cone’s volume and surface area.
Open toolRectangular prism calculator
Calculate volume, surface area and diagonal of a rectangular prism.
Open toolDistance, midpoint & slope
Calculate the distance, midpoint and slope between two points.
Open toolScreen pixel density
Calculate pixels per inch from resolution and diagonal size.
Open toolAspect ratio & resize calculator
Preserve an aspect ratio when resizing to a new width.
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