Math Calculators
Browse online calculators for algebra, geometry, statistics, and everyday problem solving. Whether you are studying, reviewing for exams, or solving practical tasks, this page helps you find the right math tool quickly.
Find the Right Calculator by Math Task
This category page brings together the most frequently used math calculators, including scientific, percentage, fraction, exponent, root, matrix, geometry, and statistics tools so you can move directly to the problem you need to solve.
If you already know what you need, jump straight into one of the calculators below. If you are not sure which tool fits best, the scientific calculator, percentage calculator, and statistics calculator are usually the fastest places to start.
Each calculator page is organized around a specific math problem, with clear inputs, practical outputs, and focused usage scenarios to help you get a reliable answer faster.
Core Math and Algebra
(20 tools)Best for everyday calculations, algebraic expressions, number conversion, powers, logarithms, and number theory tasks.
Scientific Calculator
Evaluate advanced expressions with trigonometric, logarithmic, and exponential functions.
Fraction Calculator
Add, subtract, multiply, divide, and simplify fractions online.
Percentage Calculator
Calculate percentages, percentage changes, ratios, and growth rates.
Random Number Generator
Generate random integers or values within a chosen range.
Exponent Calculator
Work with powers, exponents, and exponential growth calculations.
Binary Calculator
Convert and calculate across binary, decimal, and hexadecimal values.
Hex Calculator
Perform hexadecimal calculations and number base conversion.
Half-Life Calculator
Estimate decay, half-life, and remaining quantity over time.
Quadratic Formula Calculator
Solve quadratic equations and identify equation roots.
Log Calculator
Compute common logs, natural logs, and custom-base logarithms.
Ratio Calculator
Compare values and compute proportional relationships.
Root Calculator
Calculate square roots, cube roots, and higher-order roots.
Least Common Multiple Calculator
Find the least common multiple of two or more integers.
Greatest Common Factor Calculator
Find the greatest common factor of multiple integers.
Factor Calculator
List factors of an integer and explore divisibility.
Rounding Calculator
Round numbers by decimal place or common rounding rules.
Matrix Calculator
Handle matrix addition, multiplication, determinants, and inverses.
Scientific Notation Calculator
Convert between standard numbers and scientific notation.
Big Number Calculator
Perform arithmetic with very large integers and values.
Roman Numeral Converter
Convert between Roman numerals and Arabic numbers.
Geometry and Measurement
(9 tools)Best for area, volume, distance, circle formulas, triangle relationships, and spatial measurement problems.
Triangle Calculator
Calculate triangle sides, angles, area, and perimeter.
Volume Calculator
Compute the volume of common three-dimensional shapes.
Slope Calculator
Find slope, incline, and rate of change from coordinates.
Area Calculator
Calculate the area of common two-dimensional shapes.
Distance Calculator
Measure distance between points or in coordinate systems.
Circle Calculator
Solve for circle radius, diameter, circumference, and area.
Surface Area Calculator
Calculate the surface area of spheres, cylinders, and more.
Pythagorean Theorem Calculator
Find the missing side of a right triangle using the Pythagorean theorem.
Right Triangle Calculator
Calculate right triangle sides, angles, and related values.
Statistics and Probability
(9 tools)Best for summary metrics, spread analysis, probability estimation, sample size planning, and interval estimation.
Standard Deviation Calculator
Calculate standard deviation and variance for a dataset.
Number Sequence Calculator
Analyze sequence patterns and predict the next terms.
Sample Size Calculator
Estimate sample size for surveys, experiments, and studies.
Probability Calculator
Estimate event probability and basic chance outcomes.
Statistics Calculator
Calculate mean, median, mode, and other core statistics.
Mean, Median, Mode, Range Calculator
Summarize a dataset with key measures of central tendency.
Permutation and Combination Calculator
Solve counting problems with permutations and combinations.
Z-score Calculator
Compute a z-score from the mean and standard deviation.
Confidence Interval Calculator
Estimate confidence intervals from sample statistics.