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Math Calculators

Percentages, statistics, fractions, ratios, and everyday math utilities.

164 published tools

Acceleration CalculatorFree acceleration calculator for acceleration calculator. Enter the values below to get an instant result.Allele/genotype Frequencies CalculatorFree allele/genotype frequencies calculator for hardy weinberg calculator. Enter the values below to get an instant result.Arithmetic Expression CalculatorEvaluate a basic arithmetic expression with +, −, ×, ÷, parentheses, and powers.Arithmetic Sequence Term And Sum CalculatorFree arithmetic sequence term and sum calculator for arithmetic sequence calculator. Enter the values below to get an instant result.Average CalculatorCompute the arithmetic mean of a comma-separated list of numbers.Bacterial Growth CalculatorFree bacterial growth calculator for bacterial growth calculator. Enter the values below to get an instant result.Calculate a powerRaise a base to an exponent and see decimal and scientific forms.Calculate absolute valueFind |x| — the distance of a number from zero.Calculate correlation coefficientPearson r between two paired data sets.Calculate covariancePopulation covariance between two paired data sets.Calculate definite integralCompute ∫ₐᵇ f(x) dx for polynomials using Simpson's rule.Calculate double integralEvaluate ∬ f(x,y) dA over a rectangle for simple polynomials.Calculate factorialCompute n! for non-negative integers.Calculate force from mass and accelerationCalculate force from mass and acceleration using Newton's second law.Calculate function limitEstimate lim(x→a) for simple rational and polynomial limits.Calculate geometric meannth root of the product of n positive values.Calculate gravitational potential energyCalculate PE = mgh near Earth's surface.Calculate harmonic meanReciprocal average — common for rates and ratios.Calculate indefinite integralIntegrate a polynomial term-by-term and show + C.Calculate kinetic energyCalculate KE = ½mv² from mass and velocity.Calculate linear approximationTangent-line estimate L(x) = f(a) + f′(a)(x − a) for common functions.Calculate linear regression lineLeast-squares line ŷ = mx + b from paired data.Calculate logarithmCompute log base b of x.Calculate mechanical powerCalculate power P = W/t or P = F·v.Calculate medianFind the middle value of a sorted data set.Calculate modeFind the most frequently occurring value(s) in a data set.Calculate momentumCalculate linear momentum p = mv.Calculate natural logarithmCompute ln(x), the natural logarithm with base e.Calculate normal distribution probabilityFind the cumulative probability below a z-score or raw value.Calculate nth rootCompute the nth root of a number.Calculate odds from probabilityConvert probability p to decimal, fractional, and American odds.Calculate percentage difference between two valuesCompare two values symmetrically: |a−b| / ((a+b)/2) × 100%.Calculate percentile rankPercent of values in a data set at or below a given score.Calculate probability from oddsConvert decimal odds to implied probability.Calculate quartiles / IQRFind Q1, median, Q3, and the interquartile range from a data set.Calculate rangeCompute range = maximum − minimum.Calculate scale factorFind the scale factor between an original measurement and a scaled copy.Calculate square rootFind √x and check whether the result is exact.Calculate standard deviationPopulation standard deviation σ for a data set.Calculate triple integralEvaluate ∭ f(x,y,z) dV over a box for linear functions.Calculate variancePopulation variance of a data set.Calculate weighted averageWeighted mean from values and matching weights.Calculate workCalculate work W = F·d·cos(θ) when force moves an object.Calculate z-scoreStandardize a value: z = (x − μ) / σ.Centripetal Force CalculatorFree centripetal force calculator for centripetal force calculator. Enter the values below to get an instant result.Chi-square Test CalculatorFree chi-square test calculator for chi square calculator. Enter the values below to get an instant result.Chi-square Test Statistic CalculatorFree chi-square test statistic calculator for chi square calculator. Enter the values below to get an instant result.Circle Area And Circumference CalculatorFree circle area and circumference calculator for circle calculator. Enter the values below to get an instant result.Coefficient Of Variation CalculatorFree coefficient of variation calculator for coefficient of variation calculator. Enter the values below to get an instant result.Cone Volume And Surface Area CalculatorFree cone volume and surface area calculator for cone calculator. Enter the values below to get an instant result.Confidence Interval CalculatorFree confidence interval calculator for confidence interval calculator. Enter the values below to get an instant result.Confidence Interval For Mean CalculatorFree confidence interval for mean calculator for confidence interval calculator. Enter the values below to get an instant result.Convert degrees to radiansConvert angle measure from degrees to radians.Convert improper fraction to mixed numberWrite an improper fraction as a whole number plus a proper fraction.Convert logarithm basesChange of base: rewrite log_a(x) using ln or any new base.Convert mixed number to improper fractionConvert a whole number and fraction into a single improper fraction.Convert radians to degreesConvert angle measure from radians to degrees.Count Words And Characters CalculatorFree count words and characters calculator for word counter. Enter the values below to get an instant result.Cubic Equation CalculatorFree cubic equation calculator for cubic equation calculator. Enter the values below to get an instant result.Cylinder Volume And Surface Area CalculatorFree cylinder volume and surface area calculator for cylinder calculator. Enter the values below to get an instant result.Date Of Age Milestone GeneratorFree date of age milestone generator for when will I be 10000 days old calculator. Enter the values below to get an instant result.Density/mass/volume CalculatorFree density/mass/volume calculator for density calculator. Enter the values below to get an instant result.Differentiate an explicit functionDifferentiate a polynomial f(x) at a point using exact rules or numeric fallback.Differentiate an implicit equationFind dy/dx for implicit relations x² + y² = r² at a point.Dilution Concentration Or Volume CalculatorFree dilution concentration or volume calculator for dilution calculator C1V1 C2V2. Enter the values below to get an instant result.Dilution Using C1V1=C2V2 CalculatorFree dilution using c1v1=c2v2 calculator for dilution calculator. Enter the values below to get an instant result.Displacement Under Constant Acceleration CalculatorFree displacement under constant acceleration calculator for kinematic calculator. Enter the values below to get an instant result.Distance Between Latitude Longitude Points GeneratorFree distance between latitude longitude points generator for lat long distance calculator. Enter the values below to get an instant result.Distance Between Two Points CalculatorFree distance between two points calculator for distance formula calculator. Enter the values below to get an instant result.Divide fractionsDivide by a fraction using multiply-by-the-reciprocal.Electrical Energy Use CalculatorFree electrical energy use calculator for electricity consumption calculator. Enter the values below to get an instant result.Evaluate a polynomial at a pointEvaluate P(x) from highest-degree coefficients at a given x.Evaluate sine/cosine/tangentCompute sin, cos, and tan for an angle in degrees or radians.Expand an algebraic expressionExpand (ax + b)(cx + d) into standard quadratic form.Exponential Population Growth CalculatorFree exponential population growth calculator for population growth calculator. Enter the values below to get an instant result.Factor a polynomialFactor a quadratic ax² + bx + c when factors exist over the reals.Final Grade CalculatorFind the score needed on a final exam to hit a target overall grade.Find inverse trig angleCompute arcsin, arccos, or arctan and return degrees or radians.Find local extremaFind critical points and classify local min/max for polynomials.Find polynomial rootsFind real and complex roots of quadratic and cubic polynomials.Find quadratic discriminantCompute Δ = b² − 4ac and interpret the number of real roots.Focal Length / Image Distance CalculatorFree focal length / image distance calculator for lens equation calculator. Enter the values below to get an instant result.Fraction CalculatorAdd, subtract, multiply, or divide two fractions with a simplified result.Generate Random Number Within Range GeneratorFree generate random number within range generator for random number generator. Enter the values below to get an instant result.Geometric Sequence Term And Sum CalculatorFree geometric sequence term and sum calculator for geometric sequence calculator. Enter the values below to get an instant result.GPA CalculatorUnweighted 4.0 GPA from letter grades (A–F).Hardy-Weinberg Allele Frequencies CalculatorFree hardy-weinberg allele frequencies calculator for Hardy Weinberg calculator. Enter the values below to get an instant result.Heat Energy CalculatorFree heat energy calculator for heat calculator physics. Enter the values below to get an instant result.Heat Energy From Temperature Change CalculatorFree heat energy from temperature change calculator for heat calculator. Enter the values below to get an instant result.Hydrostatic Pressure CalculatorFree hydrostatic pressure calculator for hydrostatic pressure calculator. Enter the values below to get an instant result.Interpolate between data pointsLinear interpolation between two known (x, y) points.Lens Focal Relationship CalculatorFree lens focal relationship calculator for lens equation calculator. Enter the values below to get an instant result.Light Travel Time CalculatorFree light travel time calculator for light travel time calculator. Enter the values below to get an instant result.Linear Inequality CalculatorFree linear inequality calculator for inequality calculator. Enter the values below to get an instant result.Logarithm With Arbitrary Base CalculatorFree logarithm with arbitrary base calculator for log calculator. Enter the values below to get an instant result.Map Distance Using Scale CalculatorFree map distance using scale calculator for map scale calculator. Enter the values below to get an instant result.Mass And Molar Mass To Moles CalculatorFree mass and molar mass to moles calculator for moles calculator. Enter the values below to get an instant result.Midpoint Between Coordinates CalculatorFree midpoint between coordinates calculator for midpoint calculator. Enter the values below to get an instant result.Minimum/maximum Under Simple Constraints CalculatorFree minimum/maximum under simple constraints calculator for optimization calculator. Enter the values below to get an instant result.Missing Right-triangle Side CalculatorFree missing right-triangle side calculator for pythagorean theorem calculator. Enter the values below to get an instant result.Molar Mass From Chemical Formula CalculatorFree molar mass from chemical formula calculator for molar mass calculator. Enter the values below to get an instant result.Molarity CalculatorFree molarity calculator for molarity calculator. Enter the values below to get an instant result.Molecular / Molar Mass CalculatorFree molecular / molar mass calculator for molar mass calculator. Enter the values below to get an instant result.Moles From Mass And Molar Mass CalculatorFree moles from mass and molar mass calculator for moles calculator. Enter the values below to get an instant result.Moon Phase For Date GeneratorFree moon phase for date generator for moon phase calculator. Enter the values below to get an instant result.Multiply fractionsMultiply two fractions and reduce to lowest terms.P-value CalculatorFree p-value calculator for p value calculator. Enter the values below to get an instant result.Pearson Correlation Coefficient CalculatorFree pearson correlation coefficient calculator for correlation calculator. Enter the values below to get an instant result.Percentage CalculatorFind percentages, percent of a number, and percent increase or decrease.Percentage To Letter/GPA Scale ConverterFree percentage to letter/gpa scale converter for grade percentage to gpa calculator. Enter the values below to get an instant result.PH From Hydrogen Ion Concentration CalculatorFree ph from hydrogen ion concentration calculator for ph calculator. Enter the values below to get an instant result.POH / Convert PH And POH CalculatorFree poh / convert ph and poh calculator for poh calculator. Enter the values below to get an instant result.Poisson Probability CalculatorFree poisson probability calculator for Poisson calculator. Enter the values below to get an instant result.Population Growth CalculatorFree population growth calculator for population growth calculator. Enter the values below to get an instant result.Pressure CalculatorFree pressure calculator for pressure calculator. Enter the values below to get an instant result.Probability CalculatorBasic probability from favorable outcomes over total outcomes.Projectile Trajectory CalculatorFree projectile trajectory calculator for projectile motion calculator. Enter the values below to get an instant result.Projectile Trajectory Variables CalculatorFree projectile trajectory variables calculator for projectile motion calculator. Enter the values below to get an instant result.Quadratic Equation SolverSolve ax² + bx + c = 0 with step-by-step quadratic formula and a simple graph sketch.Quadratic Inequality CalculatorFree quadratic inequality calculator for quadratic inequality calculator. Enter the values below to get an instant result.Quartic Equation CalculatorFree quartic equation calculator for quartic equation calculator. Enter the values below to get an instant result.Radioactive Half-life Decay CalculatorFree radioactive half-life decay calculator for half life calculator. Enter the values below to get an instant result.Radius From Area Or Circumference CalculatorFree radius from area or circumference calculator for radius calculator from circumference. Enter the values below to get an instant result.Random Name PickerPick one name at random from a comma-separated list.Random Number GeneratorGenerate a random integer between inclusive min and max.Ratio CalculatorSimplify a ratio, scale it, and list equivalent ratios.Reactant/product Stoichiometry CalculatorFree reactant/product stoichiometry calculator for stoichiometry calculator. Enter the values below to get an instant result.Reaction Percent Yield CalculatorFree reaction percent yield calculator for percent yield calculator. Enter the values below to get an instant result.Readability Score CalculatorFree readability score calculator for readability calculator. Enter the values below to get an instant result.Rectangle Area And Perimeter CalculatorFree rectangle area and perimeter calculator for rectangle calculator. Enter the values below to get an instant result.Rectangular Prism Volume CalculatorFree rectangular prism volume calculator for rectangular prism calculator. Enter the values below to get an instant result.Regular Polygon Properties CalculatorFree regular polygon properties calculator for polygon calculator. Enter the values below to get an instant result.Required Sample Size CalculatorFree required sample size calculator for sample size calculator. Enter the values below to get an instant result.Reverse Percentage CalculatorReverse a percent increase or decrease to find the original amount.Sample Size For Proportion CalculatorFree sample size for proportion calculator for sample size calculator. Enter the values below to get an instant result.Schwarzschild Radius CalculatorFree schwarzschild radius calculator for schwarzschild radius calculator. Enter the values below to get an instant result.Score Needed On Final Exam CalculatorFree score needed on final exam calculator for final grade calculator. Enter the values below to get an instant result.Serial Dilution CalculatorFree serial dilution calculator for serial dilution calculator. Enter the values below to get an instant result.Simple Linear Regression CalculatorFree simple linear regression calculator for linear regression calculator. Enter the values below to get an instant result.Simplify a fractionReduce a fraction to lowest terms and show decimal and mixed forms.Simplify an algebraic expressionCombine like terms in ax + b + cx + d.Solve a proportion for an unknownSolve a/b = c/x for the missing fourth term.Solve a quadratic equationSolve ax² + bx + c = 0 with real or complex roots.Solve a system of two linear equationsSolve two equations in two unknowns using Cramer's rule.Solve absolute value equationSolve |ax + b| = c for x with both branch solutions.Solve exponential equationSolve a·bˣ = c for x using logarithms.Solve for missing percentage quantityIf part is p% of whole, find the missing part or whole.Solve logarithmic equationSolve log_b(x) = c for x by exponentiating both sides.Sphere Volume And Surface Area CalculatorFree sphere volume and surface area calculator for sphere calculator. Enter the values below to get an instant result.Subtract fractionsSubtract two fractions and simplify the result.Sunrise And Sunset Times GeneratorFree sunrise and sunset times generator for sunrise sunset calculator. Enter the values below to get an instant result.System Of Two Linear Equations CalculatorFree system of two linear equations calculator for system of equations calculator. Enter the values below to get an instant result.T-test Statistic And P-value CalculatorFree t-test statistic and p-value calculator for t test calculator. Enter the values below to get an instant result.Test Score CalculatorConvert correct answers into a percentage score.Triangle Area CalculatorFree triangle area calculator for triangle area calculator. Enter the values below to get an instant result.Triangle Using Law Of Cosines CalculatorFree triangle using law of cosines calculator for law of cosines calculator. Enter the values below to get an instant result.Triangle Using Law Of Sines CalculatorFree triangle using law of sines calculator for law of sines calculator. Enter the values below to get an instant result.UUID GeneratorGenerate a random UUID v4 string.Volumetric Flow Rate CalculatorFree volumetric flow rate calculator for flow rate calculator. Enter the values below to get an instant result.Wave Speed/frequency/wavelength CalculatorFree wave speed/frequency/wavelength calculator for wavelength calculator. Enter the values below to get an instant result.Wavelength Frequency Or Speed CalculatorFree wavelength frequency or speed calculator for wavelength calculator. Enter the values below to get an instant result.Wavelength From Audio Frequency CalculatorFree wavelength from audio frequency calculator for sound wavelength calculator. Enter the values below to get an instant result.Weighted Grade CalculatorCombine category scores with weights into a course grade.Z Score CalculatorFree z score calculator for z score calculator. Enter the values below to get an instant result.