Math
Free math calculators for percentages, square roots, fractions, GCD/LCM, averages, and algebra. Get instant results with step-by-step solutions.
Percentage Calculator
Calculate percentages, percentage change, and more
Square Root Calculator
Calculate the square root of any number
Fraction Calculator
Add, subtract, multiply, and divide fractions
GCD & LCM Calculator
Find Greatest Common Divisor and Least Common Multiple
Average Calculator
Calculate mean, median, mode, and range
Pythagorean Theorem Calculator
Calculate sides of a right triangle using a² + b² = c²
Triangle Calculator
Calculate area, perimeter, angles, and properties of any triangle
Circle Calculator
Calculate area, circumference, radius, and diameter of a circle
Rectangle Calculator
Calculate area, perimeter, diagonal, and dimensions of rectangles
Quadratic Formula Calculator
Solve quadratic equations and find roots
Probability Calculator
Calculate probability, permutations, and combinations
Permutation Calculator
Calculate permutations P(n,r) with or without repetition
Combination Calculator
Calculate combinations C(n,r) with or without repetition
Factorial Calculator
Calculate n! factorial, subfactorial, and double factorial
Logarithm Calculator
Calculate logarithms: natural (ln), common (log10), binary, and custom base
Exponent Calculator
Calculate powers and exponentials: a^b, e^x, 10^x, 2^x, and nth roots
Scientific Notation Calculator
Convert numbers to/from scientific notation and perform operations
Significant Figures Calculator
Count significant figures and round numbers to a specified precision
Rounding Calculator
Round numbers using different methods and precision levels
Ratio Calculator
Simplify ratios, scale ratios, solve proportions, and compare ratios
Free Online Math Calculators
Our comprehensive collection of math calculators helps you solve complex mathematical problems quickly and accurately. From basic percentage calculations to advanced algebra, our tools provide instant results with step-by-step explanations. All calculations happen in your browser - fast, free, and completely private.
Why Use Our Math Calculators?
Instant Results
Get accurate calculations in real-time as you type. No waiting, no page reloads - just instant mathematical answers.
Step-by-Step Solutions
Understand how the answer was derived with clear explanations of the formulas and methods used in each calculation.
100% Free & Private
All calculators are completely free with no signup required. Your calculations stay on your device - we never store your data.
Works on Any Device
Use our calculators on desktop, tablet, or mobile. Responsive design ensures a perfect experience on any screen size.
Accurate Formulas
Every calculator uses mathematically verified formulas to ensure you get the correct answer every time.
No Installation Needed
Access powerful math tools directly in your browser. No apps to download, no software to install.
How to Use Math Calculators
Select the calculator you need from the list above. Each calculator is designed for a specific type of mathematical problem.
Enter your values into the input fields. The calculator will validate your input and show helpful hints if needed.
View your results instantly. Results update in real-time as you type or modify your inputs.
Read the explanation to understand how the calculation was performed. Great for learning or verifying your work.
Copy or share your results. Use the result in your homework, work projects, or share it with others.
Common Use Cases
Students & Homework
Verify your math homework answers, understand problem-solving steps, and learn mathematical concepts through practice.
Teachers & Educators
Create examples for lessons, verify calculations quickly, and demonstrate mathematical concepts to students.
Business & Finance
Calculate percentages for discounts, markups, profit margins, and other business-related math problems.
Everyday Calculations
Split bills, calculate tips, figure out sale prices, and solve daily math challenges with ease.
Frequently Asked Questions
Yes, all our calculators use mathematically verified formulas and are tested to ensure accuracy. We display the formulas used so you can verify the calculations yourself.