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Data & Calculators
1822 appsData & Calculators: Math Calculators
Calculator · CalculateCylinder Curved Side Surface AreaCalculate a cylinder’s lateral area from height and radius or diameter, excluding the two circular ends.Calculator · CalculateCylinder End Areas, Curved Side and Closed SurfaceCylinder End Areas, Curved Side and Closed Surface. Convert compatible units, recover unknown dimensions and distinguish curved surfaces, bases and total measures.Calculator · CalculateCylinder Height from Volume, Curved Area or Axial DiagonalCylinder Height from Volume, Curved Area or Axial Diagonal. Convert compatible units, recover unknown dimensions and distinguish curved surfaces, bases and total measures.Calculator · CalculateCylinder Radius from Capacity, Area and HeightCylinder Radius from Capacity, Area and Height. Convert compatible units, recover unknown dimensions and distinguish curved surfaces, bases and total measures.Calculator · CalculateCylinder Rim Circumference, Radius & DiameterConvert between the radius, diameter and circumference of a circular cylinder rim using consistent length units.Calculator · CalculateCylinder Volume, Radius, Diameter & HeightRelate a circular cylinder’s volume, height, radius and diameter using independent measurement units.Calculator · CalculateDecagon Area from Side, Perimeter or RadiusFind the area of a regular ten-sided shape from a known linear measurement, retaining its perimeter and circle radii.Calculator · CalculateDecimal ↔ Percentage ConverterConvert a decimal proportion into percent, or turn a percentage number back into its decimal form.Calculator · CalculateDecimal Angle ↔ Degrees, Minutes & SecondsConvert signed decimal degrees and compound degrees-minutes-seconds, with optional radians and other angle units.Calculator · CalculateDecimal Rounding to the Nearest HundredthRound a decimal number to the nearest 0.01, including negative values, with the rounding rule and precision behavior explained.Calculator · CalculateDistance Between Two Cartesian PointsCalculate straight-line distance between two points on a plane, with a documented single-branch inverse for missing coordinates.Calculator · CalculateDistance CalculatorCalculate straight-line distance, displacement, midpoint, and coordinate differences between two points.Calculator · CalculateDMS, Decimal Degrees & Angle Unit TableCompare degrees-minutes-seconds, decimal degrees and a third angle unit in the same table.Calculator · CalculateDodecagon Area, Side Length & Circle RadiiCalculate area and related dimensions for a regular twelve-sided outline with an illustrated radius and apothem guide.Calculator · CalculateDuration as a Percentage of Total TimeCompare a duration with a positive reference duration using separate time units.Calculator · Calculatee to a Power & Natural ExponentCalculate e raised to a real exponent and recover the exponent from a positive result, with a separate rounded display.Calculator · CalculateEllipse Area from Two Semi-AxesCalculate ellipse area from two semi-axes with converted units, positive geometric inverses and explicit model limits.Calculator · CalculateEllipsoid Volume from Three Semi-AxesCalculate ellipsoid volume from three semi-axes with converted units, positive geometric inverses and explicit model limits.Calculator · CalculateEqual-Leg Right Triangle Hypotenuse and AltitudeCalculate equal-leg right triangle hypotenuse and altitude with retained unit controls, positive geometric roots and explicit inverse-branch assumptions.Calculator · CalculateEqual-Leg Triangle Base and Apex AnglesNo. Enter the full base b. Its half b/2 appears only inside the formulas because the altitude bisects the base.Calculator · CalculateEquilateral Triangle Area and Perpendicular HeightCalculate equilateral triangle area and perpendicular height with retained unit controls, positive geometric roots and explicit inverse-branch assumptions.Calculator · CalculateEquilateral Triangle Side, Altitude and Circle RadiiCalculate equilateral triangle side, altitude and circle radii with retained unit controls, positive geometric roots and explicit inverse-branch assumptions.Calculator · CalculateEuclidean Residues and Signed Remainder ConventionsCalculate the nonnegative residue and the retained alternative signed-remainder conventions for a nonzero divisor.Calculator · CalculateEuclidean Vector Magnitude: 2D to 5DFind the Euclidean length of a vector with two, three, four or five real components.Calculator · CalculateExponent CalculatorRaise any real base to an integer or fractional exponent and show reciprocal forms for negative powers.Calculator · CalculateFactor CalculatorList every positive factor and factor pair for a whole number.Calculator · CalculateFibonacci Recurrence with Generalized SeedsEvaluate a Fibonacci-type recurrence at an integer index, with editable first two terms and negative-index support.Calculator · CalculateFloor: Round Down to an IntegerFind the greatest integer less than or equal to a number, including negative decimals.Calculator · CalculateFraction CalculatorAdd, subtract, multiply, or divide two fractions and reduce the answer to lowest terms.Calculator · CalculateFractional Power from Numerator and DenominatorFractional Power from Numerator and Denominator. Evaluate a real power or principal root, with reverse inputs where a unique solution exists.Calculator · CalculateGolden Rectangle Width, Extension and Full AreaThe full rectangle has width a and length a+b. Segment b is the extension beyond an a-by-a square. The area is a(a+b), equal to a²φ, rather than the area ab of the smaller remainder.Calculator · CalculateGolden Section Lengths and Whole SegmentYes. The longer-to-shorter ratio equals the whole-to-longer ratio, both φ. The whole is also the sum of the two positive sections. Any one length determines the others.Calculator · CalculateGreatest Common Factor CalculatorFind the greatest common factor of two or more whole numbers.Calculator · CalculateHalf-Disk Area, Diameter and Complete PerimeterYes. The full half-disk boundary is πr+2r. The curved semicircle by itself is only πr.Calculator · CalculateHalf-Life CalculatorCalculate the remaining amount, elapsed half-lives, and decay constant for exponential decay.Calculator · CalculateHemisphere Curved Area, Flat Base and Total SurfaceHemisphere Curved Area, Flat Base and Total Surface. Convert compatible units, recover unknown dimensions and distinguish curved surfaces, bases and total measures.Calculator · CalculateHemisphere Volume from Radius, Diameter or SurfaceHemisphere Volume from Radius, Diameter or Surface. Convert compatible units, recover unknown dimensions and distinguish curved surfaces, bases and total measures.Calculator · CalculateHeptagon Area from Linear MeasurementsWork between a regular heptagon’s area, side, perimeter, outer radius and apothem using its fixed seven-sided geometry.Calculator · CalculateHeron Triangle Area, Perimeter and Side RelationshipsCalculate heron triangle area, perimeter and side relationships with converted units, positive geometric inverses and explicit model limits.Calculator · CalculateHex CalculatorPerform exact arithmetic on hexadecimal integers and convert the result to decimal and binary.Calculator · CalculateHexagonal Pyramid Base, Lateral and Total SurfaceHexagonal Pyramid Base, Lateral and Total Surface. Use unit controls and documented positive geometric roots to compare base, lateral and total measures.Calculator · CalculateHexagonal Pyramid Capacity from Base Edge or ApothemHexagonal Pyramid Capacity from Base Edge or Apothem. Use unit controls and documented positive geometric roots to compare base, lateral and total measures.Calculator · CalculateHollow Cylinder Material Volume and Wall ThicknessHollow Cylinder Material Volume and Wall Thickness. Convert compatible units, recover unknown dimensions and distinguish curved surfaces, bases and total measures.Calculator · CalculateHypotenuse from an Equal Right-Triangle LegCalculate hypotenuse from an equal right-triangle leg with retained unit controls, positive geometric roots and explicit inverse-branch assumptions.Calculator · CalculateImaginary Unit Integer Power CycleImaginary Unit Integer Power Cycle. Find the symbolic value of i raised to a positive, zero or negative integer exponent.Calculator · CalculateInscribed Angle, Intercepted Arc and Central AngleYes. The intercepted arc lies opposite the inscribed vertex. The central sweep is twice the inscribed angle, and its radian value times radius gives arc length. Major arcs are allowed within the stated open bounds.Calculator · CalculateInteger Square Check and Root FactorsInteger Square Check and Root Factors. Check whether a number is the square of an integer and show its root-factor identity.Calculator · CalculateInverse Cosine — Principal AngleFind the principal inverse cosine angle from a value between −1 and 1, with degree and radian units.Calculator · CalculateInverse Cosine with Principal-Angle ReferencesInverse Cosine with Principal-Angle References. Find the principal inverse angle or convert a entered angle to its sine/cosine ratio.Calculator · CalculateInverse Sine — Principal AngleFind the principal inverse sine angle from a value between −1 and 1, with degree and radian units.Calculator · CalculateIsosceles Triangle Altitudes to Base and Equal LegCalculate isosceles triangle altitudes to base and equal leg with retained unit controls, positive geometric roots and explicit inverse-branch assumptions.Calculator · CalculateIsosceles Triangle Area from Equal Leg and BaseCalculate isosceles triangle area from equal leg and base with retained unit controls, positive geometric roots and explicit inverse-branch assumptions.Calculator · CalculateLeast Common Multiple CalculatorFind the least common multiple of two or more whole numbers.Calculator · CalculateLog CalculatorCalculate logarithms with any positive base, including common and natural logarithms.Calculator · CalculateLong Division CalculatorDivide whole numbers and show quotient, remainder, decimal result, and the division identity.Calculator · CalculateMatrix CalculatorAdd, subtract, multiply, transpose, or find the determinant of matrices up to 8 by 8.Calculator · CalculateMatrix Entrywise Product up to 3 × 3Multiply corresponding entries of two equally sized matrices, from 1 × 1 through 3 × 3, with signed and zero entries and retained inverse relations.Calculator · CalculateMatrix Scalar Multiplication, 1–3 Rows & ColumnsMultiply every entry of a matrix by one real scalar, with selectable dimensions through 3 × 3 and reversible nonzero-factor calculations.Calculator · CalculateMean, Median, Mode, Range CalculatorFind the mean, median, mode, range, sum, and count of a list of numbers.Calculator · CalculateModulo Remainders and Operation OrderingCalculate the nonnegative residue and the retained alternative signed-remainder conventions for a nonzero divisor.Calculator · CalculateNatural Logarithm & Exponential InverseCalculate the real natural logarithm of a positive number or recover the number from its logarithm.Calculator · CalculateNegative Logarithm with a Chosen BaseCalculate minus the logarithm of a positive number using a positive base other than one.Calculator · CalculateNegative Powers and Reciprocal EvaluationNegative Powers and Reciprocal Evaluation. Evaluate a real power or principal root, with reverse inputs where a unique solution exists.Calculator · CalculateNonnegative Cube and Variable-Degree RootsNonnegative Cube and Variable-Degree Roots. Evaluate a real power or principal root, with reverse inputs where a unique solution exists.Calculator · CalculateNonnegative Integer Factorial ProductMultiply the positive integers through n, including the empty-product value 0! = 1.Calculator · CalculateNonnegative Radical with Variable DegreeNonnegative Radical with Variable Degree. Evaluate a real power or principal root, with reverse inputs where a unique solution exists.Calculator · CalculateNumber Sequence CalculatorAnalyze a sequence for arithmetic or geometric patterns and project its next five terms.Calculator · CalculateP-value CalculatorConvert a z statistic to left-tailed, right-tailed, and two-tailed normal-distribution p-values.Calculator · CalculateParallel Triangle Segment Ratios and Missing LengthNo. DB is the remaining part from D to B, and EC is the remaining part from E to C. The full sides are AD+DB and AE+EC.Calculator · CalculatePercent Error CalculatorCompare an observed value with an accepted value and calculate absolute and signed percent error.Calculator · CalculatePercentage CalculatorSolve percent-of, percent-ratio, and percentage-change questions with the formula shown.Calculator · CalculatePercentage of a Percentage & AmountCombine two successive percentage proportions and calculate the amount remaining after each proportion.Calculator · CalculatePercentage Points, Relative Change & Common-Base ValuesCompare an absolute percentage-point change with relative percent change and corresponding values on a common base.Calculator · CalculatePermutation and Combination CalculatorCalculate ordered permutations and unordered combinations for n objects chosen r at a time.Calculator · CalculatePerpendicular Distance from a Point to a PlaneFind shortest distance to a plane given its equation or a normal vector and a point on the plane.Calculator · CalculatePerpendicular Line Through a Point & IntersectionFind the finite-slope perpendicular through a supplied point and its intersection with the original line.Calculator · CalculatePlanar Segment Midpoint and Missing Endpoint CoordinateYes. Each coordinate is the arithmetic mean of the two endpoint coordinates on that axis. A negative position is valid; all axes must use a common coordinate scale.Calculator · CalculatePolar & Cartesian Coordinates: Choose a DirectionSwitch between radius-and-angle inputs and signed x/y inputs while keeping angle units and quadrant conventions explicit.Calculator · CalculatePolar Radius & Angle to Cartesian CoordinatesResolve a nonnegative radius and selected angle into Cartesian x and y coordinates.Calculator · CalculatePolyhedron Vertices, Edges & Faces RelationSolve the Euler V − E + F = 2 relation for a missing count in an applicable closed polyhedron.Calculator · CalculatePositive Integer Decimal Digital RootFind the single-digit result of repeatedly summing decimal digits for a positive integer with up to 60 digits.Calculator · CalculatePowers of 10 & Reverse LogarithmsFind 10 raised to a real exponent, or recover the exponent from a positive result using a base-10 logarithm.Calculator · CalculatePowers of 2 & Reverse LogarithmsFind 2 raised to a real exponent, or recover the exponent from a positive result using a base-2 logarithm.Calculator · CalculatePressure Angle to Involute Function ValueEvaluate tan(α) − α with the angle converted to radians, for angles from zero up to but excluding a right angle.Calculator · CalculatePrime Factorization CalculatorBreak a whole number into prime factors and show exponential notation.Calculator · CalculatePrincipal Arccosine Angle in Nine UnitsPrincipal Arccosine Angle in Nine Units. Find the principal inverse angle or convert a entered angle to its sine/cosine ratio.Calculator · CalculatePrincipal Arcsine Angle and Sine RatioPrincipal Arcsine Angle and Sine Ratio. Find the principal inverse angle or convert a entered angle to its sine/cosine ratio.Calculator · CalculatePrincipal Inverse Tangent in Degrees and RadiansThey are tangent poles and cannot correspond to a finite real input. Principal arctangent returns an angle strictly between these limits; degree, radian and other selectors represent that same branch.Calculator · CalculateProbability CalculatorCalculate event probability, odds, complements, and independent two-event combinations.Calculator · CalculateProgress as a Percentage of GoalCompare a nonnegative amount of progress with a positive target, including results above 100%.Calculator · CalculatePythagorean Right-Triangle Sides, Area and BoundaryCalculate pythagorean right-triangle sides, area and boundary with retained unit controls, positive geometric roots and explicit inverse-branch assumptions.Calculator · CalculatePythagorean Theorem CalculatorFind the hypotenuse and other properties of a right triangle from its two legs.Calculator · CalculateQuadratic Formula CalculatorSolve ax² + bx + c = 0 and report real or complex roots, the discriminant, and vertex.Calculator · CalculateQuarter-Disk Arc Length and Full BoundaryNo. The curved arc is πr/2. The full boundary adds two radii, so P = πr/2 + 2r.Calculator · CalculateQuarter-Disk Area and Remaining Square CornerIts endpoints are one radius apart horizontally and vertically. The Pythagorean theorem gives √(r²+r²)=r√2 for an exact 90-degree quarter disk.Calculator · CalculateQuarter-Disk Chord, Arc, Boundary and Square RemainderIt is the area of the radius-by-radius square outside the quarter disk, r²−πr²/4. It is not the area bounded by the chord and arc.