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1822 apps · Showing 97–192

Data & Calculators: Math Calculators

Cylinder Curved Side Surface Area

Calculate a cylinder’s lateral area from height and radius or diameter, excluding the two circular ends.

Cylinder End Areas, Curved Side and Closed Surface

Cylinder End Areas, Curved Side and Closed Surface. Convert compatible units, recover unknown dimensions and distinguish curved surfaces, bases and total measures.

Cylinder Height from Volume, Curved Area or Axial Diagonal

Cylinder Height from Volume, Curved Area or Axial Diagonal. Convert compatible units, recover unknown dimensions and distinguish curved surfaces, bases and total measures.

Cylinder Radius from Capacity, Area and Height

Cylinder Radius from Capacity, Area and Height. Convert compatible units, recover unknown dimensions and distinguish curved surfaces, bases and total measures.

Cylinder Rim Circumference, Radius & Diameter

Convert between the radius, diameter and circumference of a circular cylinder rim using consistent length units.

Cylinder Volume, Radius, Diameter & Height

Relate a circular cylinder’s volume, height, radius and diameter using independent measurement units.

Decagon Area from Side, Perimeter or Radius

Find the area of a regular ten-sided shape from a known linear measurement, retaining its perimeter and circle radii.

Decimal ↔ Percentage Converter

Convert a decimal proportion into percent, or turn a percentage number back into its decimal form.

Decimal Angle ↔ Degrees, Minutes & Seconds

Convert signed decimal degrees and compound degrees-minutes-seconds, with optional radians and other angle units.

Decimal Rounding to the Nearest Hundredth

Round a decimal number to the nearest 0.01, including negative values, with the rounding rule and precision behavior explained.

Distance Between Two Cartesian Points

Calculate straight-line distance between two points on a plane, with a documented single-branch inverse for missing coordinates.

Distance Calculator

Calculate straight-line distance, displacement, midpoint, and coordinate differences between two points.

DMS, Decimal Degrees & Angle Unit Table

Compare degrees-minutes-seconds, decimal degrees and a third angle unit in the same table.

Dodecagon Area, Side Length & Circle Radii

Calculate area and related dimensions for a regular twelve-sided outline with an illustrated radius and apothem guide.

Duration as a Percentage of Total Time

Compare a duration with a positive reference duration using separate time units.

e to a Power & Natural Exponent

Calculate e raised to a real exponent and recover the exponent from a positive result, with a separate rounded display.

Ellipse Area from Two Semi-Axes

Calculate ellipse area from two semi-axes with converted units, positive geometric inverses and explicit model limits.

Ellipsoid Volume from Three Semi-Axes

Calculate ellipsoid volume from three semi-axes with converted units, positive geometric inverses and explicit model limits.

Equal-Leg Right Triangle Hypotenuse and Altitude

Calculate equal-leg right triangle hypotenuse and altitude with retained unit controls, positive geometric roots and explicit inverse-branch assumptions.

Equal-Leg Triangle Base and Apex Angles

No. Enter the full base b. Its half b/2 appears only inside the formulas because the altitude bisects the base.

Equilateral Triangle Area and Perpendicular Height

Calculate equilateral triangle area and perpendicular height with retained unit controls, positive geometric roots and explicit inverse-branch assumptions.

Equilateral Triangle Side, Altitude and Circle Radii

Calculate equilateral triangle side, altitude and circle radii with retained unit controls, positive geometric roots and explicit inverse-branch assumptions.

Euclidean Residues and Signed Remainder Conventions

Calculate the nonnegative residue and the retained alternative signed-remainder conventions for a nonzero divisor.

Euclidean Vector Magnitude: 2D to 5D

Find the Euclidean length of a vector with two, three, four or five real components.

Exponent Calculator

Raise any real base to an integer or fractional exponent and show reciprocal forms for negative powers.

Factor Calculator

List every positive factor and factor pair for a whole number.

Fibonacci Recurrence with Generalized Seeds

Evaluate a Fibonacci-type recurrence at an integer index, with editable first two terms and negative-index support.

Floor: Round Down to an Integer

Find the greatest integer less than or equal to a number, including negative decimals.

Fraction Calculator

Add, subtract, multiply, or divide two fractions and reduce the answer to lowest terms.

Fractional Power from Numerator and Denominator

Fractional Power from Numerator and Denominator. Evaluate a real power or principal root, with reverse inputs where a unique solution exists.

Golden Rectangle Width, Extension and Full Area

The 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.

Golden Section Lengths and Whole Segment

Yes. 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.

Greatest Common Factor Calculator

Find the greatest common factor of two or more whole numbers.

Half-Disk Area, Diameter and Complete Perimeter

Yes. The full half-disk boundary is πr+2r. The curved semicircle by itself is only πr.

Half-Life Calculator

Calculate the remaining amount, elapsed half-lives, and decay constant for exponential decay.

Hemisphere Curved Area, Flat Base and Total Surface

Hemisphere Curved Area, Flat Base and Total Surface. Convert compatible units, recover unknown dimensions and distinguish curved surfaces, bases and total measures.

Hemisphere Volume from Radius, Diameter or Surface

Hemisphere Volume from Radius, Diameter or Surface. Convert compatible units, recover unknown dimensions and distinguish curved surfaces, bases and total measures.

Heptagon Area from Linear Measurements

Work between a regular heptagon’s area, side, perimeter, outer radius and apothem using its fixed seven-sided geometry.

Heron Triangle Area, Perimeter and Side Relationships

Calculate heron triangle area, perimeter and side relationships with converted units, positive geometric inverses and explicit model limits.

Hex Calculator

Perform exact arithmetic on hexadecimal integers and convert the result to decimal and binary.

Hexagonal Pyramid Base, Lateral and Total Surface

Hexagonal Pyramid Base, Lateral and Total Surface. Use unit controls and documented positive geometric roots to compare base, lateral and total measures.

Hexagonal Pyramid Capacity from Base Edge or Apothem

Hexagonal Pyramid Capacity from Base Edge or Apothem. Use unit controls and documented positive geometric roots to compare base, lateral and total measures.

Hollow Cylinder Material Volume and Wall Thickness

Hollow Cylinder Material Volume and Wall Thickness. Convert compatible units, recover unknown dimensions and distinguish curved surfaces, bases and total measures.

Hypotenuse from an Equal Right-Triangle Leg

Calculate hypotenuse from an equal right-triangle leg with retained unit controls, positive geometric roots and explicit inverse-branch assumptions.

Imaginary Unit Integer Power Cycle

Imaginary Unit Integer Power Cycle. Find the symbolic value of i raised to a positive, zero or negative integer exponent.

Inscribed Angle, Intercepted Arc and Central Angle

Yes. 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.

Integer Square Check and Root Factors

Integer Square Check and Root Factors. Check whether a number is the square of an integer and show its root-factor identity.

Inverse Cosine — Principal Angle

Find the principal inverse cosine angle from a value between −1 and 1, with degree and radian units.

Inverse Cosine with Principal-Angle References

Inverse Cosine with Principal-Angle References. Find the principal inverse angle or convert a entered angle to its sine/cosine ratio.

Inverse Sine — Principal Angle

Find the principal inverse sine angle from a value between −1 and 1, with degree and radian units.

Isosceles Triangle Altitudes to Base and Equal Leg

Calculate isosceles triangle altitudes to base and equal leg with retained unit controls, positive geometric roots and explicit inverse-branch assumptions.

Isosceles Triangle Area from Equal Leg and Base

Calculate isosceles triangle area from equal leg and base with retained unit controls, positive geometric roots and explicit inverse-branch assumptions.

Least Common Multiple Calculator

Find the least common multiple of two or more whole numbers.

Log Calculator

Calculate logarithms with any positive base, including common and natural logarithms.

Long Division Calculator

Divide whole numbers and show quotient, remainder, decimal result, and the division identity.

Matrix Calculator

Add, subtract, multiply, transpose, or find the determinant of matrices up to 8 by 8.

Matrix Entrywise Product up to 3 × 3

Multiply corresponding entries of two equally sized matrices, from 1 × 1 through 3 × 3, with signed and zero entries and retained inverse relations.

Matrix Scalar Multiplication, 1–3 Rows & Columns

Multiply every entry of a matrix by one real scalar, with selectable dimensions through 3 × 3 and reversible nonzero-factor calculations.

Mean, Median, Mode, Range Calculator

Find the mean, median, mode, range, sum, and count of a list of numbers.

Modulo Remainders and Operation Ordering

Calculate the nonnegative residue and the retained alternative signed-remainder conventions for a nonzero divisor.

Natural Logarithm & Exponential Inverse

Calculate the real natural logarithm of a positive number or recover the number from its logarithm.

Negative Logarithm with a Chosen Base

Calculate minus the logarithm of a positive number using a positive base other than one.

Negative Powers and Reciprocal Evaluation

Negative Powers and Reciprocal Evaluation. Evaluate a real power or principal root, with reverse inputs where a unique solution exists.

Nonnegative Cube and Variable-Degree Roots

Nonnegative Cube and Variable-Degree Roots. Evaluate a real power or principal root, with reverse inputs where a unique solution exists.

Nonnegative Integer Factorial Product

Multiply the positive integers through n, including the empty-product value 0! = 1.

Nonnegative Radical with Variable Degree

Nonnegative Radical with Variable Degree. Evaluate a real power or principal root, with reverse inputs where a unique solution exists.

Number Sequence Calculator

Analyze a sequence for arithmetic or geometric patterns and project its next five terms.

P-value Calculator

Convert a z statistic to left-tailed, right-tailed, and two-tailed normal-distribution p-values.

Parallel Triangle Segment Ratios and Missing Length

No. 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.

Percent Error Calculator

Compare an observed value with an accepted value and calculate absolute and signed percent error.

Percentage Calculator

Solve percent-of, percent-ratio, and percentage-change questions with the formula shown.

Percentage of a Percentage & Amount

Combine two successive percentage proportions and calculate the amount remaining after each proportion.

Percentage Points, Relative Change & Common-Base Values

Compare an absolute percentage-point change with relative percent change and corresponding values on a common base.

Permutation and Combination Calculator

Calculate ordered permutations and unordered combinations for n objects chosen r at a time.

Perpendicular Distance from a Point to a Plane

Find shortest distance to a plane given its equation or a normal vector and a point on the plane.

Perpendicular Line Through a Point & Intersection

Find the finite-slope perpendicular through a supplied point and its intersection with the original line.

Planar Segment Midpoint and Missing Endpoint Coordinate

Yes. 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.

Polar & Cartesian Coordinates: Choose a Direction

Switch between radius-and-angle inputs and signed x/y inputs while keeping angle units and quadrant conventions explicit.

Polar Radius & Angle to Cartesian Coordinates

Resolve a nonnegative radius and selected angle into Cartesian x and y coordinates.

Polyhedron Vertices, Edges & Faces Relation

Solve the Euler V − E + F = 2 relation for a missing count in an applicable closed polyhedron.

Positive Integer Decimal Digital Root

Find the single-digit result of repeatedly summing decimal digits for a positive integer with up to 60 digits.

Powers of 10 & Reverse Logarithms

Find 10 raised to a real exponent, or recover the exponent from a positive result using a base-10 logarithm.

Powers of 2 & Reverse Logarithms

Find 2 raised to a real exponent, or recover the exponent from a positive result using a base-2 logarithm.

Pressure Angle to Involute Function Value

Evaluate tan(α) − α with the angle converted to radians, for angles from zero up to but excluding a right angle.

Prime Factorization Calculator

Break a whole number into prime factors and show exponential notation.

Principal Arccosine Angle in Nine Units

Principal Arccosine Angle in Nine Units. Find the principal inverse angle or convert a entered angle to its sine/cosine ratio.

Principal Arcsine Angle and Sine Ratio

Principal Arcsine Angle and Sine Ratio. Find the principal inverse angle or convert a entered angle to its sine/cosine ratio.

Principal Inverse Tangent in Degrees and Radians

They 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.

Probability Calculator

Calculate event probability, odds, complements, and independent two-event combinations.

Progress as a Percentage of Goal

Compare a nonnegative amount of progress with a positive target, including results above 100%.

Pythagorean Right-Triangle Sides, Area and Boundary

Calculate pythagorean right-triangle sides, area and boundary with retained unit controls, positive geometric roots and explicit inverse-branch assumptions.

Pythagorean Theorem Calculator

Find the hypotenuse and other properties of a right triangle from its two legs.

Quadratic Formula Calculator

Solve ax² + bx + c = 0 and report real or complex roots, the discriminant, and vertex.

Quarter-Disk Arc Length and Full Boundary

No. The curved arc is πr/2. The full boundary adds two radii, so P = πr/2 + 2r.

Quarter-Disk Area and Remaining Square Corner

Its endpoints are one radius apart horizontally and vertically. The Pythagorean theorem gives √(r²+r²)=r√2 for an exact 90-degree quarter disk.

Quarter-Disk Chord, Arc, Boundary and Square Remainder

It 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.