Free Math Calculators
Powerful mathematical tools to solve problems from basic arithmetic to advanced calculus. Access 40+ free calculators for algebra, geometry, statistics, trigonometry, and more.
Whether you're a student tackling homework, a teacher preparing lessons, or a professional needing quick calculations, our comprehensive suite of math tools provides accurate, instant solutions with step-by-step explanations.
Why Use Our Online Math Calculators?
✓ Instant & Accurate Results
Get precise mathematical solutions in milliseconds. Our calculators use proven algorithms and formulas trusted by educators and professionals worldwide, ensuring accuracy for every calculation from simple arithmetic to complex equations.
✓ Perfect for All Skill Levels
From elementary students learning fractions to college students solving calculus problems, our tools are designed for everyone. Clear interfaces, helpful explanations, and step-by-step solutions make complex math accessible to all.
✓ 100% Free & No Registration
Access all 40+ math calculators completely free. No sign-up required, no email needed, and no usage limits. Just open, calculate, and get your answers instantly. Education should be free and accessible to everyone.
✓ Works on Any Device
Use our calculators on desktop, laptop, tablet, or smartphone. Responsive design ensures a perfect experience on any screen size. All calculations happen in your browser for lightning-fast performance and complete privacy.
Master Mathematics with Confidence
Mathematics doesn't have to be intimidating. Our comprehensive collection of calculators helps you understand concepts, check your work, and solve problems efficiently. From basic percentages to advanced matrix operations, we provide the tools you need to succeed in school, work, and everyday life. Start calculating smarter today!
Browse Our Math Calculators by Category
📊 Statistics & Probability
Mean, median, mode, standard deviation, variance, probability, confidence intervals, and more.
- • Average Calculator
- • Standard Deviation
- • Probability Calculator
- • Z-Score Calculator
📐 Geometry & Trigonometry
Calculate area, perimeter, volume, angles, and solve triangle problems with ease.
- • Triangle Calculator
- • Circle Calculator
- • Volume Calculator
- • Pythagorean Theorem
🔢 Algebra & Equations
Solve equations, work with exponents, logarithms, matrices, and polynomial operations.
- • Quadratic Formula
- • Slope Calculator
- • Matrix Calculator
- • Exponent Calculator
➗ Fractions & Decimals
Add, subtract, multiply, divide fractions. Convert between fractions and decimals.
- • Fraction Calculator
- • Ratio Calculator
- • Percentage Calculator
- • Rounding Calculator
🔬 Scientific & Advanced
Scientific notation, logarithms, roots, prime factorization, and number theory.
- • Scientific Calculator
- • Log Calculator
- • Root Calculator
- • Prime Factorization
🎲 Number Operations
GCD, LCM, factors, multiples, random numbers, and basic arithmetic operations.
- • GCD Calculator
- • LCM Calculator
- • Factor Calculator
- • Random Number Generator
All Math Calculators (47 Tools)
Percentage Calculator
Calculate percentages, percentage increase/decrease, and more.
Random Number
Generate random numbers within a specific range.
Average Calculator
Calculate the Mean, Median, Mode, and Range of a set of numbers.
Basic Calculator
Perform basic arithmetic operations.
Scientific Calculator
Perform advanced mathematical operations.
Fraction Calculator
Add, subtract, multiply, and divide fractions.
Triangle Calculator
Calculate area, perimeter, and angles of a triangle.
Area Calculator
Calculate the area of various geometric shapes.
Volume Calculator
Calculate the volume of various 3D shapes.
Standard Deviation
Calculate standard deviation and variance.
Number Sequence
Find the next number in a sequence.
Percent Error
Calculate the percentage error between experimental and theoretical values.
Exponent Calculator
Calculate the value of a number raised to a power.
Binary Calculator
Perform operations with binary numbers.
Hex Calculator
Perform operations with hexadecimal numbers.
Half-Life Calculator
Calculate the half-life of a radioactive substance.
Quadratic Formula
Solve quadratic equations using the quadratic formula.
Slope Calculator
Calculate the slope of a line given two points.
Log Calculator
Calculate logarithms with any base.
Sample Size
Calculate the required sample size for a survey.
Probability Calculator
Calculate the probability of an event.
Statistics Calculator
Calculate basic statistics for a set of data.
Permutation & Combination
Calculate permutations and combinations.
Z-score Calculator
Calculate the Z-score for a data point.
Confidence Interval
Calculate the confidence interval for a sample mean.
Ratio Calculator
Solve ratio problems and simplify ratios.
Distance Calculator
Calculate the distance between two points.
Circle Calculator
Calculate area, circumference, and radius of a circle.
Surface Area
Calculate the surface area of 3D shapes.
Pythagorean Theorem
Calculate the length of a side of a right triangle.
Right Triangle
Calculate sides and angles of a right triangle.
Root Calculator
Calculate the root of a number.
LCM Calculator
Calculate the Least Common Multiple.
GCD Calculator
Calculate the Greatest Common Divisor (GCD) of two or more numbers.
GCF Calculator
Calculate the Greatest Common Factor.
Factor Calculator
Find all factors of a number.
Rounding Calculator
Round numbers to the nearest whole number, decimal, etc.
Matrix Calculator
Perform matrix operations.
Scientific Notation
Convert numbers to and from scientific notation.
Big Number
Perform calculations with very large numbers.
Prime Factorization
Find the prime factors of a number.
Common Factor
Find common factors of two or more numbers.
Long Division
Perform long division with remainders.
P-value Calculator
Calculate the P-value from a Z, t, F, or Chi-square score.
Sample Size (Beginners)
Simplified sample size calculator for survey beginners.
Triangle Calc (Steps)
Solve triangles with step-by-step explanations.
Triangle Side (Steps)
Find missing triangle sides step-by-step.
Frequently Asked Questions About Math Calculators
What types of math calculators are available?
We offer 40+ free math calculators covering algebra (equations, polynomials), geometry (area, volume, triangles), statistics (mean, standard deviation, probability), calculus (derivatives, integrals), and arithmetic (fractions, percentages, ratios). All tools are completely free and require no registration.
How do I calculate percentages quickly?
Our percentage calculator handles all percentage operations: finding what percentage one number is of another, calculating percentage increase or decrease, adding or subtracting percentages from values, and finding the original value before a percentage change. Simply enter your numbers and get instant results.
Can these calculators help with homework?
Yes! Our math calculators are perfect for students at all levels - from elementary school to college. They provide instant solutions and many include step-by-step explanations to help you understand the concepts. Use them to check your work, learn new methods, or solve complex problems quickly.
Are the math calculators accurate and reliable?
Absolutely. All our calculators use proven mathematical formulas and algorithms that are tested for accuracy. They follow standard mathematical conventions and provide results that match what you would get from textbooks or professional software. For critical applications, we always recommend double-checking important calculations.
Do I need to install any software to use these calculators?
No installation required! All our math calculators work directly in your web browser on any device - desktop, tablet, or smartphone. All calculations are performed locally in your browser, ensuring fast results and complete privacy of your data.
How do I solve fractions with different denominators?
Our fraction calculator automatically handles fractions with different denominators. It finds the least common denominator (LCD), converts the fractions, performs the operation (addition, subtraction, multiplication, or division), and simplifies the result. You can also convert between fractions, decimals, and percentages.
What is the difference between mean, median, and mode?
Mean is the average (sum of all values divided by count), median is the middle value when numbers are sorted, and mode is the most frequently occurring value. Our statistics calculator computes all three measures plus range, variance, and standard deviation to give you a complete statistical analysis of your data set.
Can I use these calculators for standardized tests?
While our calculators are excellent for practice and homework, most standardized tests (SAT, ACT, GRE) have specific calculator policies. Some allow certain calculator types, while others prohibit them entirely. Always check your specific test requirements. Our tools are perfect for test preparation and studying.