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Calkulon

Mathematics Calculators

Fractions, algebra, geometry, statistics and more. Instant result with formula, examples and step-by-step calculation. Free online calculator.

Calkulon provides rigorous mathematical tools designed for accuracy-critical work in academia and engineering. From linear algebra and matrix operations to differential equations, probability distributions, and numerical methods, every calculator shows full derivation steps and cites the relevant mathematical theorems. Ideal for researchers verifying proofs, engineers validating simulations, or students preparing for advanced examinations.

Fractions

Add, subtract, multiply, divide and convert fractions. Step-by-step solution with formula, LCD method and fully worked examples. Instant result.

Add FractionsMixed Numbers CalculatorSimplify FractionsComplex FractionsDecimal to FractionFraction to Decimal+15 more

21 calculators

General Math

Core arithmetic and number operations. Instant result with formula, examples and step-by-step calculation. Free online calculator.

Basic Calculator•Percentage Calculator•Rounding CalculatorLong Division CalculatorLong MultiplicationPrime Factorization+24 more

30 calculators

Algebra

Equations, exponents, roots and polynomials. Instant result with formula, examples and step-by-step calculation. Free online calculator.

Quadratic Formula•Exponents CalculatorSquare Root CalculatorCube Root CalculatorRadicals & RootsLogarithm Calculator+32 more

38 calculators

Percent

Percentage calculations and conversions. Quick calculation with worked example and formula. Free everyday calculator.

Percentage IncreasePercentage DecreasePercent to DecimalDecimal to PercentTip Calculator•Discount Calculator•+5 more

11 calculators

Statistics

Mean, median, mode, standard deviation and more. Instant result with formula, examples and step-by-step calculation. Free online calculator.

Mean Median Mode•Standard DeviationConfidence Interval CalculatorTest Grade Calculator•Average CalculatorQuartile Calculator+42 more

48 calculators

Hypothesis Testing

P-Value CalculatorEffect Size CalculatorStatistical Power CalculatorConfidence Level CalculatorPaired t-Test CalculatorChi-Square Test Calculator+11 more

17 calculators

Data Analysis

Covariance CalculatorMoving Average CalculatorBox Plot CalculatorHistogram Calculator

4 calculators

Discrete Math

Combinations, permutations, and sequences. Instant result with formula, examples and step-by-step calculation. Free online calculator.

Combinations (nCr)Permutations (nPr)Factorial Calculator n!Pascal's TriangleFibonacci CalculatorCombinations with Replacement+6 more

12 calculators

Geometry

Area, perimeter, volume, and surface area for any 2D or 3D shape. Enter your dimensions — see all measurements with diagrams and formula breakdown. Free.

Plane Geometry (2D) →Solid Geometry (3D) →Trigonometric Functions →

60 calculators

Number Theory

Prime Number GeneratorDivisibility CalculatorNumber Base ConverterPerfect Number CheckerEulers Totient FunctionDigit Sum Calculator+1 more

7 calculators

Calculus

Derivative CalculatorIntegral CalculatorLimit CalculatorRiemann Sum CalculatorTrapezoidal Rule CalculatorNewtons Method Calculator+10 more

16 calculators

Advanced Algebra

Polynomial Root CalculatorSynthetic DivisionPartial Fraction DecompositionComplex Roots CalculatorLogarithm Equation SolverInequality Calculator+2 more

8 calculators

Linear Algebra

Vector Operations CalculatorMatrix MultiplicationMatrix TransposeMatrix Rank CalculatorNull Space CalculatorSystem of Equations Solver+4 more

10 calculators

Sequences and Series

Arithmetic Sequence CalculatorGeometric Sequence CalculatorSeries Sum CalculatorFibonacci Sequence CalculatorRecursive SequenceBinomial Theorem Calculator+1 more

7 calculators

Probability

Bayes Theorem CalculatorBirthday Paradox CalculatorDice Probability CalculatorLottery Probability CalculatorCard Probability CalculatorExpected Value Calculator+2 more

8 calculators

Coordinate Geometry

Distance Between PointsLine Equation CalculatorPerpendicular SlopeCircle EquationEllipse Calculator

5 calculators

Financial Mathematics

NPV CalculatorIRR CalculatorPayback Period CalculatorDepreciation CalculatorLoan Amortization Table

5 calculators

Geometry Tools

Regular Polygon AreaInscribed Circle CalculatorCircumscribed CircleHeron's Formula CalculatorSector Area CalculatorArc Length Calculator+6 more

12 calculators

Advanced Mathematics

Matrix Multiply Calculator•Matrix Inverse Calculator•Linear System Calculator•Integral Calculator•Derivative Calculator•Limits Calculator•+24 more

30 calculators

Advanced Geometry

Ellipse Calculator•Torus Calculator•Ellipsoid Calculator•Frustum Calculator•Regular Polygon Calculator•Irregular Polygon Calculator•+29 more

35 calculators

Statistics & Data Science

Bayes Theorem Calculator•Conditional Prob Calculator•Joint Prob Calculator•Expected Value Calculator•Moment Generating Calculator•Exponential Dist Calculator•+24 more

30 calculators

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