# Free online calculators to solve mathematical tasks

Online calculators

- Collection of online calculators which will help you to solve mathematical tasks fast. For a solution of the task it is enough to select the necessary online calculator and to input the task data, the program will fulfil all evaluations and will give the detailed answer.
I constantly improve existing calculators and write new ones. If you do not find the desired mathematical calculator or know how to improve existing calculators, write about it in comments or feedback.

## ONLINE CALCULATORS

Online calculators. Unit conversion.Mass and Weight ConversionLength and Distance ConversionArea ConversionVolume ConversionTime ConversionSpeed ConversionTemperature Conversion

Online calculators. Number theory.Column addition, column subtraction, long multiplication and long division calculatorColumn addition and column subtraction calculatorLong multiplication calculatorLong division calculatorLong division calculator with remainders calculatorModulo CalculatorGCD and LCM calculatorInteger factorization calculatorSquare root calculator

Online Fraction Calculators:Online Fraction CalculatorOnline Fraction and Decimal CalculatorOnline Comparing Fractions CalculatorOnline Simplifying Fractions CalculatorConverting Improper Fractions to Mixed NumbersConverting Mixed Numbers to Improper FractionsLeast common denominator of two fractionsConverting Decimal to FractionRatio Calculator

Online calculators with percentOnline calculator. Find P percent of A?Online calculator. B is P percent of what?Online calculator. Find the number which is greater (less) than a given number by X percent.Online calculator. B is what percentage of A?Online calculator. Find on what percent number

**A**greater (less) than**B**Compound Interest Calculator. Fixed Deposit CalculatorPercent Off CalculatorOnline calculators. Solving of equations.Solving of quadratic equations.Solving of biquadratic equations.Solving systems of linear equations by substitution.Gaussian elimination calculatorLinear equations calculator: Cramer's ruleLinear equations calculator: Inverse matrix method

Online calculators. Progressionn-th term of an arithmetic progressionSum of an arithmetic progression

Online calculators. Combinatorics. Theory of ProbabilityPermutationKpermutationCombinationExpected valueVariance

Online calculators with complex numbersAddition, subtraction, multiplication and division of complex numbersMagnitude of complex number. Complex modulusRectangular form of complex number to polar and exponential form converter

Online calculators with vectorsOnline calculator. Component form of a vector with initial point and terminal pointOnline calculator. Vector magnitude calculatorOnline calculator. Direction cosines of a vectorOnline calculator. Addition and subtraction of two vectorsOnline calculator. Scalar-vector multiplicationOnline calculator. Dot product of two vectorsOnline calculator. Angle between vectorsOnline calculator. Vector projectionOnline calculator. Cross product of two vectors (vector product)Online calculator. Scalar triple productOnline calculator. Collinear vectorsOnline calculator. Orthogonal vectorsOnline calculator. Coplanar vectorsOnline calculator. Area of triangle formed by vectorsOnline calculator. Area of parallelogram formed by vectorsOnline calculator. Volume of pyramid formed by vectorsOnline calculator. Is vectors a basis?Online calculator. Decomposition of the vector in the basis

Online calculators with matrixesMatrix addition and subtraction calculatorMatrix transpose calculatorMatrix scalar multiplication calculatorMatrix multiplication calculatorMatrix power calculatorMatrix determinant calculatorMatrix rank calculatorInverse matrix calculator (Gaussian elimination)Inverse matrix calculator (Matrix of cofactors)

Online calculator. Analytic geometry. Cartesian coordinates.Distance between two points calculatorMidpoint calculatorEquation of a line calculatorEquation of a planeDistance from point to planeDistance between two planesDistance from a point to a line - 2-DimensionalDistance from a point to a line - 3-DimensionalAngle between two linesAngle between two planesAngle between line and plane

Online calculators. The area of geometrical figures.Triangle Area Calculator (9 diferent ways)Online calculator. Triangle area. Heron's formulaQuadrilateral Area CalculatorSquare Area CalculatorRectangle Area CalculatorParallelogram Area CalculatorRhombus Area CalculatorTrapezium Area CalculatorCircle Area CalculatorEllipse Area Calculator

Online calculators. Perimeter of geometric figuresOnline calculator. Perimeter of a triangleOnline calculator. Perimeter of a squareOnline calculator. Perimeter of a rectangleOnline calculator. Perimeter of a parallelogramOnline calculator. Perimeter of a rhombusOnline calculator. Perimeter of a trapeziumOnline calculator. Circumference of a circle

Online calculators. The volume of geometrical figures.Online calculator. Volume of cube.Online calculator. Volume of prism.Online calculator. Volume of rectangular prism (cuboid).Online calculator. Volume of parallelepiped.Online calculator. Volume of pyramid.Online calculator. Volume of tetrahedron.Online calculator. Volume of sphere.Online calculator. Volume of cylinder.Online calculator. Volume of cone.

Online calculators. Surface Area Formulas for Geometric FiguresOnline calculator. Area of cube.Online calculator. Area of rectangular prism (cuboid).Online calculator. Area of cylinder.Online calculator. Area of cone.Online calculator. Area of sphere.

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