Calculators

Free calculators for math, statistics, finance, and unit conversion. Need something more involved? Better Analyst can run the analysis on your own data.

calculus

Free Derivative Calculator
Compute symbolic derivatives instantly with step-by-step rules and an interactive graph of f(x) and f'(x).
Free Integral Calculator
Compute indefinite and definite integrals instantly with AI-powered step-by-step solutions.
Free Limit Calculator
Evaluate limits of functions instantly with a table of approaching values from left, right, or both sides.
Free Summation Calculator (Sigma Notation)
Compute sigma notation sums instantly with individual terms and partial sums displayed step by step.

applied-math

Free Unit Converter Online
Convert between units of length, weight, temperature, volume, speed, time, and area instantly.
Free Compound Interest Calculator Online
Calculate compound interest with year-by-year breakdowns, future value, and effective annual rate.
Percentage Calculator — Percent & Change
Calculate percentages three ways: find X% of Y, what percent X is of Y, or percentage change.
Free Polynomial Roots Calculator Online
Find real and complex roots of quadratic, cubic, and quartic polynomials with step-by-step solutions.

number-tools

Free Fraction Calculator Online
Add, subtract, multiply, and divide fractions instantly with step-by-step simplification to lowest terms.
Free Complex Number Calculator Online
Perform complex number arithmetic, find conjugates, magnitude, and polar form with step-by-step solutions.
Free Number Base Converter Online
Convert numbers between binary, octal, decimal, and hexadecimal instantly with all representations shown at once.
Free Factoring Calculator Online
Find GCD, LCM, and prime factorizations instantly with step-by-step Euclidean algorithm and trial division.

statistics

Free Statistics Calculator Online
Compute mean, median, mode, standard deviation, variance, quartiles, and a full five-number summary from any dataset.
Free Probability Calculator Online
Compute combinations (nCr), permutations (nPr), and factorials (n!) instantly with step-by-step formula expansions.
Free Regression Calculator Online
Compute the line of best fit (y = mx + b), R-squared, correlation coefficient, predictions, and residuals from any dataset.
Free Percent Error Calculator Online
Calculate percent error for experiments and data.

algebra

Free Expression Simplifier
Simplify algebraic expressions instantly with a breakdown of the rules applied and an expanded form.
Free Quadratic Formula Calculator Online
Solve quadratic equations step by step.
Slope Calculator - Find Slope from Two Points
Find the slope and equation of a line.
Log Calculator - Calculate Logarithms Online
Calculate logarithms with any base.

linear-algebra

Free Matrix Calculator Online
Compute determinant, inverse, transpose, multiplication, eigenvalues, and rank — with step-by-step explanations.
Free Vector Calculator Online
Compute dot product, cross product, magnitude, unit vectors, and angle between vectors — with step-by-step formulas.
Free Equation Solver Online
Solve linear systems (Ax = b) and quadratic equations (ax^2+bx+c = 0) instantly with step-by-step solutions and verification.

utility

Free Tip Calculator Online
Calculate tips and split bills with ease.
Free GPA Calculator Online
Calculate your grade point average instantly.
Free Final Grade Calculator Online
Find out what you need on your final exam.
Age Calculator - Calculate Your Exact Age
Calculate your exact age in years, months, and days.

geometry

Free Square Footage Calculator Online
Calculate area for any shape and convert between units.
Free Pythagorean Theorem Calculator Online
Find the missing side of a right triangle.
Free Midpoint Calculator Online
Find the midpoint between two coordinate points.

arithmetic

Free Square Root Calculator Online
Find square roots with step-by-step solutions.
Free Long Division Calculator Online
Solve long division with detailed steps.
Free Scientific Notation Calculator Online
Convert and calculate with scientific notation.
Free Rounding Calculator Online
Round numbers to any decimal place.
Free Mixed Number Calculator Online
Add, subtract, multiply, and divide mixed numbers.
Free Exponent Calculator Online
Calculate powers and exponents step by step.
Free Significant Figures Calculator Online
Count and round significant figures.
Free GCF & LCM Calculator Online
Find the GCF and LCM of any numbers.
Free Decimal to Fraction Online
Convert decimals to fractions in lowest terms.

finance

Free Annuity Calculator Online
Calculate annuity payments and values.
Free Dividend Calculator Online
Calculate dividend yield and income projections.
Free Future Value Calculator Online
Calculate how your investments grow over time.
Free Discount Calculator Online
Calculate sale prices and savings instantly.
Free Markup Calculator Online
Calculate markup percentage and profit margins.