Math Calculators
Solve math problems quickly and accurately with our free online math calculators. From basic arithmetic and algebra to geometry, statistics, number theory, and number systems, these tools show step-by-step solutions and deliver instant results with no signup required.
Basic & Scientific
View all →Basic Calculator
Perform basic arithmetic operations including addition, subtraction, multiplication, and division.
Scientific Calculator
Perform advanced mathematical calculations including trigonometry, logarithms, and exponents.
Fraction Calculator
Add, subtract, multiply, and divide fractions with step-by-step solutions.
Percentage Calculator
Calculate percentages, percentage changes, and percentage differences between values.
Percent Error Calculator
Calculate the percent error between an experimental value and a known theoretical value.
Big Number Calculator
Perform arithmetic operations on extremely large numbers beyond standard calculator limits.
Average Calculator
Calculate the mean, median, mode, and range of a set of numbers quickly.
Rounding Calculator
Round numbers to any decimal place or significant figures with clear step-by-step explanation.
Ratio Calculator
Simplify ratios, solve proportions, and scale ratios up or down for any application.
Long Division Calculator
Perform long division with remainder and see each step of the division process.
Algebra
View all →Exponent Calculator
Calculate powers and exponents for any base and exponent value including negatives and fractions.
Root Calculator
Calculate square roots, cube roots, and nth roots of any number with decimal precision.
Log Calculator
Calculate logarithms for any base including natural log, log base 10, and custom bases.
Quadratic Formula Calculator
Solve quadratic equations using the quadratic formula with step-by-step solutions.
Golden Ratio Calculator
Calculate golden ratio values and check if two numbers are in golden ratio proportion.
Modular Arithmetic Calculator
Perform modular arithmetic operations including modular exponentiation and inverse.
Matrix Calculator
Perform matrix operations including addition, multiplication, determinant, and inverse.
Geometry
View all →Triangle Calculator
Calculate triangle area, perimeter, angles, and sides from any combination of known values.
Right Triangle Calculator
Solve right triangles by finding missing sides, angles, area, and perimeter.
Circle Calculator
Calculate circle area, circumference, diameter, and radius from any known measurement.
Area Calculator
Calculate the area of common shapes including rectangles, triangles, circles, and more.
Volume Calculator
Calculate the volume of 3D shapes including cubes, spheres, cylinders, and cones.
Surface Area Calculator
Calculate the surface area of 3D objects including spheres, cubes, cylinders, and prisms.
Perimeter Calculator
Calculate the perimeter of various shapes including rectangles, triangles, and polygons.
Pythagorean Theorem Calculator
Find the missing side of a right triangle using the Pythagorean theorem (a² + b² = c²).
Slope Calculator
Calculate the slope, distance, and equation of a line from two points on a coordinate plane.
Distance Calculator
Calculate the distance between two points in 2D or 3D coordinate space.
Square Footage Calculator
Calculate the square footage of rooms, yards, or any area from length and width measurements.
Statistics & Probability
View all →Standard Deviation Calculator
Calculate standard deviation, variance, and mean for a data set with step-by-step solution.
Statistics Calculator
Calculate key statistical measures including mean, median, mode, range, and standard deviation.
Mean Median Mode Range Calculator
Calculate mean, median, mode, and range of any data set with clear explanations.
Z-Score Calculator
Calculate z-scores and find probabilities from the standard normal distribution table.
P-Value Calculator
Calculate p-values from test statistics for z-tests, t-tests, and chi-square tests.
Confidence Interval Calculator
Calculate confidence intervals for population means and proportions at any confidence level.
Sample Size Calculator
Determine the minimum sample size needed for statistically significant survey results.
Probability Calculator
Calculate the probability of single and combined events with visual probability diagrams.
Permutation and Combination Calculator
Calculate permutations and combinations for counting arrangements and selections.
Factorial Calculator
Calculate the factorial of any number and understand how factorials work in combinatorics.
Number Theory
View all →GCF Calculator
Find the greatest common factor of two or more numbers using prime factorization.
LCM Calculator
Calculate the least common multiple of two or more numbers with step-by-step methods.
Factor Calculator
Find all factors of a number and determine if a number is prime or composite.
Prime Factorization Calculator
Break down any number into its prime factors with a factor tree visualization.
Common Factor Calculator
Find all common factors shared by two or more numbers with clear factor lists.
Number Sequence Calculator
Identify patterns in number sequences and calculate the next terms in the series.
Number Systems
View all →Binary Calculator
Perform arithmetic operations on binary numbers and convert between binary and decimal.
Hex Calculator
Perform arithmetic on hexadecimal numbers and convert between hex, decimal, and binary.
Scientific Notation Calculator
Convert numbers to and from scientific notation and perform calculations in scientific form.
Base Converter
Convert numbers between any bases from base 2 to base 36 including binary, octal, and hex.
Roman Numeral Converter
Convert between Roman numerals and decimal numbers with validation and rules explanation.
Number to Words Converter
Convert any number into its written word form for checks, documents, and formal writing.
About Math Calculators
Mathematics is the universal language that underpins science, finance, engineering, and daily decision-making. Our math calculators are organized into six subcategories, giving students, professionals, and curious minds a comprehensive toolkit for every mathematical need.
Basic & Scientific calculators handle everyday arithmetic, percentages, fractions, and advanced functions like trigonometry and logarithms. Algebra tools solve quadratic equations, compute exponents, roots, and logarithms, and perform matrix operations. Geometry calculators find areas, volumes, perimeters, slopes, and distances for 2D and 3D shapes.
Statistics & Probability tools compute standard deviation, z-scores, confidence intervals, and permutations. Number Theory calculators find GCF, LCM, prime factorizations, and number sequences. Number Systems tools convert between binary, hexadecimal, scientific notation, Roman numerals, and other bases.
Every calculator displays the underlying formula, walks through a worked example, and provides reference tables for quick lookup. Whether you are a student checking homework, a teacher preparing lessons, or a professional verifying results, these tools deliver accurate answers you can trust.
Frequently Asked Questions
Can I use these math calculators for school and exams?
These calculators are excellent study and homework tools. They show step-by-step solutions that help you understand the process, not just the answer. However, most exams prohibit external calculators, so use these tools for practice and verification rather than during tests.
What math categories are covered?
Our math section covers six subcategories: Basic and Scientific (percentages, fractions, arithmetic), Algebra (exponents, logarithms, quadratics, matrices), Geometry (triangles, circles, area, volume, slope), Statistics and Probability (standard deviation, z-scores, confidence intervals, permutations), Number Theory (GCF, LCM, prime factorization, sequences), and Number Systems (binary, hex, scientific notation, Roman numerals). With 50 calculators total, virtually every common math problem type is covered.
How do the geometry calculators handle different shapes?
The geometry subcategory includes dedicated calculators for triangles (general and right triangles), circles, and multi-shape tools for area, volume, surface area, and perimeter. The area and volume calculators let you select from many shapes in one interface. For coordinate geometry, use the slope calculator for line equations and the distance calculator for point-to-point measurements.
What statistics tools are available for data analysis?
The statistics subcategory provides ten calculators covering descriptive statistics (mean, median, mode, standard deviation, variance), inferential statistics (z-scores, p-values, confidence intervals, sample size), and probability (basic probability, permutations and combinations, factorials). These tools handle the full workflow from summarizing data to testing hypotheses.
Are the calculation results rounded?
Results are displayed with appropriate precision, typically up to 6 decimal places for most calculations. You can see the full unrounded value for greater precision when needed. The scientific notation calculator and big number calculator support extended precision for extreme values.
Explore More Calculators
Science Calculators
Apply math to physics and chemistry with half-life, Ohm's law, molarity, and molecular weight tools.
Financial Calculators
Apply math skills to real-world money decisions including loans, mortgages, and investments.
Education Calculators
Calculate your GPA and weighted grades for academic planning.