Math Calculators Online
Free math calculators for algebra, geometry, trigonometry, statistics, and more. Solve complex problems instantly. Explore our free calculator online tools below.
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Calculators
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Popular Math Calculators
Z-Score Calculator
Free Z-Score Calculator โ Calculate the z-score standard score from a raw score mean and standard deviation. Features probability interpretation with normal distribution reference. Essential for statistics hypothesis testing and data analysis.
P-Value Calculator
Free P-Value Calculator โ Calculate p-values from z-scores t-scores chi-square and F-scores for hypothesis testing. Features one-tailed and two-tailed test options with significance level comparison. Essential for statistics and research analysis.
Confidence Interval Calculator
Free Confidence Interval Calculator โ Compute confidence intervals for population means and proportions. Features z-interval and t-interval methods with margin of error display. Essential for statistics survey analysis and data science.
Margin of Error Calculator
Free Margin of Error Calculator โ Calculate the margin of error for surveys and polls at various confidence levels. Features sample size and proportion-based calculation. Essential for statistics opinion polling and market research.
Effect Size Calculator
Free Effect Size Calculator โ Compute Cohen d Hedges g and Glass delta effect sizes for comparing group means. Features interpretation guidelines with confidence intervals. Essential for statistics meta-analysis and research methodology.
Mann-Whitney U Test Calculator
Free Mann-Whitney U Test Calculator โ Perform the non-parametric Mann-Whitney U test for comparing two independent groups. Features rank summation with step-by-step calculation. Essential for statistics when normality assumptions fail.
Wilcoxon Signed-Rank Test Calculator
Free Wilcoxon Signed-Rank Test Calculator โ Perform the non-parametric Wilcoxon signed-rank test for paired or one-sample data. Features rank difference calculation with step-by-step analysis. Ideal for statistics and before-after study designs.
Spearman Correlation Calculator
Free Spearman Correlation Calculator โ Compute the Spearman rank correlation coefficient rho for assessing monotonic relationships. Features rank transformation with step-by-step calculation. Essential for statistics and nonparametric correlation analysis.
Fraction to Percent Converter
Free Fraction to Percent Converter โ Convert fractions to percentages with step-by-step division and multiplication by 100. Features proper and improper fraction support with simplified display. Perfect for math students and everyday calculations.
Percent to Fraction Converter
Free Percent to Fraction Converter โ Convert percentages to fractions in simplest form with step-by-step simplification using GCD. Features decimal percent and mixed number percent support. Essential for math homework and real-world applications.
Decimal to Percent Converter
Free Decimal to Percent Converter โ Convert decimal numbers to percentages by multiplying by 100. Features step-by-step conversion with examples. Perfect for financial math grade calculations and everyday percent use.
Percent to Decimal Converter
Free Percent to Decimal Converter โ Convert percentages to decimal numbers by dividing by 100. Features step-by-step conversion with real-world examples. Essential for financial calculations interest rates and statistical data.
Fraction to Decimal Converter
Free Fraction to Decimal Converter โ Convert fractions to terminating or repeating decimals with long division display. Features mixed number support and rounding options. Essential for math students and practical measurement conversion.
Decimal to Fraction Converter
Free Decimal to Fraction Converter โ Convert terminating and repeating decimals to fractions with step-by-step algebraic method. Features fraction simplification and mixed number display. Perfect for math homework and precision measurement.
Improper to Mixed Number Converter
Free Improper to Mixed Number Converter โ Convert improper fractions to mixed numbers with division and remainder display. Features step-by-step fraction decomposition. Essential for math students and fraction arithmetic preparation.
Mixed to Improper Fraction Converter
Free Mixed to Improper Fraction Converter โ Convert mixed numbers to improper fractions with multiplication and addition steps. Features clear step-by-step calculation. Perfect for math students preparing for fraction operations.
Simplify Fraction Calculator
Free Simplify Fraction Calculator โ Reduce fractions to lowest terms using GCD with step-by-step division display. Features proper improper and mixed fraction support. Essential for math students and everyday fraction simplification.
Compare Fractions Calculator
Free Compare Fractions Calculator โ Compare two fractions and determine which is larger smaller or if they are equal. Features cross multiplication with inequality display. Perfect for math students and fraction ordering problems.
Sales Tax Calculator
Free Sales Tax Calculator โ Calculate sales tax amount and total price including tax from pre-tax amount and tax rate. Features reverse tax calculation from total paid. Essential for shopping budgeting and business accounting.
Discount Calculator
Free Discount Calculator โ Calculate final price after discount from original price and discount percentage. Features savings amount display and reverse discount calculation. Perfect for shopping deals price comparison and retail math.
Tip Calculator
Free Tip Calculator โ Calculate tip amount per person and total bill for any tip percentage. Features bill splitting among multiple people with custom tip rate. Essential for dining out group meals and service gratuity.
Markup Calculator
Free Markup Calculator โ Calculate the selling price and markup percentage from cost and desired profit. Features gross profit margin display with step-by-step business math. Essential for retail pricing and small business management.
Profit Margin Calculator
Free Profit Margin Calculator โ Calculate gross profit margin percentage from revenue and cost of goods sold. Features net profit margin and markup comparison. Essential for business financial analysis and pricing strategy.
Break-Even Calculator
Free Break-Even Calculator โ Calculate the break-even point in units and dollars from fixed costs variable costs and selling price. Features contribution margin display. Essential for business planning and financial feasibility analysis.
Percentage Change Calculator
Free Percentage Change Calculator โ Calculate the percentage increase or decrease between two values. Features formula derivation and sign interpretation. Essential for finance statistics and tracking changes over time.
Percentage Increase Calculator
Free Percentage Increase Calculator โ Calculate the result after a percentage increase from an original value. Features step-by-step multiplication by growth factor. Perfect for salary raises price increases and population growth calculations.
Percentage Decrease Calculator
Free Percentage Decrease Calculator โ Calculate the result after a percentage decrease from an original value. Features step-by-step reduction factor calculation. Essential for sales discounts budget cuts and population decline analysis.
Percentage Difference Calculator
Free Percentage Difference Calculator โ Calculate the percentage difference between two values using the average as reference. Features symmetric formula with absolute value display. Perfect for comparing measurements and scientific data analysis.
Linear Algebra Calculator
Free Linear Algebra Calculator - Calculate linear equations slope and intercept from algebraic expressions Master math concepts with step-by-step solutions interactive graphs and detailed explanations. Perfect for students teachers and professionals who need accurate mathematical computations with visual learning aids.
Quadratic Algebra Calculator
Free Quadratic Algebra Calculator - Calculate quadratic equation roots using quadratic formula and factoring Master math concepts with step-by-step solutions interactive graphs and detailed explanations. Perfect for students teachers and professionals who need accurate mathematical computations with visual learning aids.
Cubic Algebra Calculator
Free Cubic Algebra Calculator - Calculate cubic equation roots using rational root theorem and factoring Master math concepts with step-by-step solutions interactive graphs and detailed explanations. Perfect for students teachers and professionals who need accurate mathematical computations with visual learning aids.
Polynomial Algebra Calculator
Free Polynomial Algebra Calculator - Calculate polynomial degree and leading coefficient for algebraic expressions Master math concepts with step-by-step solutions interactive graphs and detailed explanations. Perfect for students teachers and professionals who need accurate mathematical computations with visual learning aids.
Rational Algebra Calculator
Free Rational Algebra Calculator - Calculate rational expression simplification and partial fraction decomposition Master math concepts with step-by-step solutions interactive graphs and detailed explanations. Perfect for students teachers and professionals who need accurate mathematical computations with visual learning aids.
Triangle Geometry Calculator
Free Triangle Geometry Calculator - Calculate triangle area angles and side lengths from given measurements Master math concepts with step-by-step solutions interactive graphs and detailed explanations. Perfect for students teachers and professionals who need accurate mathematical computations with visual learning aids.
Circle Geometry Calculator
Free Circle Geometry Calculator - Calculate circle circumference area radius and arc measurements Master math concepts with step-by-step solutions interactive graphs and detailed explanations. Perfect for students teachers and professionals who need accurate mathematical computations with visual learning aids.
Polygon Geometry Calculator
Free Polygon Geometry Calculator - Calculate regular polygon area perimeter and interior angles by side count Master math concepts with step-by-step solutions interactive graphs and detailed explanations. Perfect for students teachers and professionals who need accurate mathematical computations with visual learning aids.
Ellipse Geometry Calculator
Free Ellipse Geometry Calculator - Calculate ellipse area circumference and focal point properties Master math concepts with step-by-step solutions interactive graphs and detailed explanations. Perfect for students teachers and professionals who need accurate mathematical computations with visual learning aids.
Torus Geometry Calculator
Free Torus Geometry Calculator - Calculate torus volume surface area and cross-section properties Master math concepts with step-by-step solutions interactive graphs and detailed explanations. Perfect for students teachers and professionals who need accurate mathematical computations with visual learning aids.
Law of Sines Calculator
Free Law of Sines Calculator - Calculate triangle sides and angles using the law of sines formula Master math concepts with step-by-step solutions interactive graphs and detailed explanations. Perfect for students teachers and professionals who need accurate mathematical computations with visual learning aids.
Law of Cosines Calculator
Free Law of Cosines Calculator - Calculate triangle sides and angles using the law of cosines formula Master math concepts with step-by-step solutions interactive graphs and detailed explanations. Perfect for students teachers and professionals who need accurate mathematical computations with visual learning aids.
Trigonometric Identities Calculator
Free Trigonometric Identities Calculator - Calculate and verify trigonometric identity transformations step by step Master math concepts with step-by-step solutions interactive graphs and detailed explanations. Perfect for students teachers and professionals who need accurate mathematical computations with visual learning aids.
Trigonometric Graphs Calculator
Free Trigonometric Graphs Calculator - Calculate trigonometric function graphs amplitude period and phase shift Master math concepts with step-by-step solutions interactive graphs and detailed explanations. Perfect for students teachers and professionals who need accurate mathematical computations with visual learning aids.
Inverse Trigonometry Calculator
Free Inverse Trigonometry Calculator - Calculate inverse trigonometric functions arcsin arccos and arctan values Master math concepts with step-by-step solutions interactive graphs and detailed explanations. Perfect for students teachers and professionals who need accurate mathematical computations with visual learning aids.
Gradient Calculator
Free Gradient Calculator - Calculate gradient vector of multivariable functions for calculus analysis Master math concepts with step-by-step solutions interactive graphs and detailed explanations. Perfect for students teachers and professionals who need accurate mathematical computations with visual learning aids.
Curl Calculator
Free Curl Calculator - Calculate curl of vector fields for multivariable calculus analysis Master math concepts with step-by-step solutions interactive graphs and detailed explanations. Perfect for students teachers and professionals who need accurate mathematical computations with visual learning aids.
Divergence Calculator
Free Divergence Calculator - Calculate divergence of vector fields for multivariable calculus analysis Master math concepts with step-by-step solutions interactive graphs and detailed explanations. Perfect for students teachers and professionals who need accurate mathematical computations with visual learning aids.
Laplacian Calculator
Free Laplacian Calculator - Calculate Laplacian operator for scalar and vector fields in calculus Master math concepts with step-by-step solutions interactive graphs and detailed explanations. Perfect for students teachers and professionals who need accurate mathematical computations with visual learning aids.
Vector Calculus Calculator
Free Vector Calculus Calculator - Calculate vector operations including dot product cross product and magnitude Master math concepts with step-by-step solutions interactive graphs and detailed explanations. Perfect for students teachers and professionals who need accurate mathematical computations with visual learning aids.
Circle Geometry Calculator
Free Circle Geometry Calculator โ Calculate radius, diameter, circumference, and area of a circle from any known value.
Sphere Calculator
Free Sphere Calculator โ Calculate sphere radius, surface area, and volume from any known measurement.
Cylinder Calculator
Free Cylinder Calculator โ Calculate cylinder volume, surface area, and lateral area from radius and height.
Cone Calculator
Free Cone Calculator โ Calculate cone volume, surface area, and slant height from radius and height.
Cube Calculator
Free Cube Calculator โ Calculate cube volume, surface area, face diagonal, and space diagonal from side length.
Rectangular Prism Calculator
Free Rectangular Prism Calculator โ Calculate volume, surface area, and diagonal of a rectangular prism.
Pyramid Calculator
Free Pyramid Calculator โ Calculate pyramid volume, surface area, and slant height for regular pyramids.
Torus Calculator
Free Torus Calculator โ Calculate torus volume and surface area from major and minor radii.
Ellipse Calculator
Free Ellipse Calculator โ Calculate ellipse area, perimeter approximation, and eccentricity from axes.
Trapezoid Calculator
Free Trapezoid Calculator โ Calculate trapezoid area, perimeter, height, and median length from sides.
Rhombus Calculator
Free Rhombus Calculator โ Calculate rhombus area, perimeter, and diagonal lengths from side and angle.
Parallelogram Calculator
Free Parallelogram Calculator โ Calculate parallelogram area, perimeter, and diagonal lengths from sides and angle.