Mathematics Calculators
Fractions, percentages, statistics, exponents, roots and logarithms.
25 free mathematics calculators — no signup, mobile-friendly, formulas verified by our editorial team.
Featured mathematics calculators
Confidence Interval Calculator
Confidence interval for a mean with margin of error and standard error.
Correlation Calculator
Pearson correlation coefficient, r² and covariance for paired data.
Determinant Calculator
Determinant of any square matrix with invertibility and rank status.
Fraction Calculator
Add, subtract, multiply and divide fractions with simplified and mixed answers.
Linear Equation Calculator
Solve ax + b = cx + d step by step, including no-solution and identity cases.
Matrix Calculator
Add, subtract and multiply matrices of any compatible size.
All mathematics calculators
Confidence Interval Calculator
Confidence interval for a mean with margin of error and standard error.
Correlation Calculator
Pearson correlation coefficient, r² and covariance for paired data.
Determinant Calculator
Determinant of any square matrix with invertibility and rank status.
Fraction Calculator
Add, subtract, multiply and divide fractions with simplified and mixed answers.
Linear Equation Calculator
Solve ax + b = cx + d step by step, including no-solution and identity cases.
Matrix Calculator
Add, subtract and multiply matrices of any compatible size.
Mean Median Mode Calculator
Mean, median, mode, quartiles and interquartile range for a data set.
Percentage Change Calculator
Percent increase or decrease between two values, plus percent difference.
Permutation and Combination Calculator
nPr, nCr, factorials and with-repetition counts for counting problems.
Quadratic Equation Calculator
Solve ax² + bx + c = 0 with roots, discriminant, vertex and axis of symmetry.
Regression Calculator
Least-squares line of best fit with slope, intercept, R² and predictions.
Scientific Calculator
Full expression scientific calculator with trig, logs, roots, powers and factorials.
Square Root Calculator
Square roots in decimal and simplified radical form, plus cube and fourth roots.
Standard Deviation Calculator
Sample or population standard deviation, variance and standard error.
System of Equations Calculator
Solve two-variable linear systems with Cramer's rule and instant verification.
Average Calculator
Mean, sum, range and geometric mean for any list of numbers.
Decimal to Fraction Calculator
Convert decimals to exact fractions and fractions back to decimals.
Exponent Calculator
Raise any base to any power, including negative and fractional exponents.
Fraction Simplifier
Reduce any fraction to lowest terms and see the greatest common divisor.
Logarithm Calculator
Log of any base with ln, log base 10, log base 2 and change of base.
Matrix Inverse Calculator
Invert any non-singular square matrix using Gauss-Jordan elimination.
Probability Calculator
Probability of A and B, A or B, neither and at least once over trials.
Ratio Calculator
Simplify ratios and solve proportions with cross multiplication.
Scientific Notation Calculator
Convert between standard numbers, scientific notation and engineering notation.
Significant Figures Calculator
Count significant figures and round to sig figs or decimal places.
Popular in mathematics
Average Calculator
Mean, sum, range and geometric mean for any list of numbers.
Decimal to Fraction Calculator
Convert decimals to exact fractions and fractions back to decimals.
Exponent Calculator
Raise any base to any power, including negative and fractional exponents.
Fraction Simplifier
Reduce any fraction to lowest terms and see the greatest common divisor.
Logarithm Calculator
Log of any base with ln, log base 10, log base 2 and change of base.
Matrix Inverse Calculator
Invert any non-singular square matrix using Gauss-Jordan elimination.
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