Math Tools
Calculate percentages, ratios, averages, GCD/LCM, prime numbers, and solve equations. Fast client-side math tools for students and professionals.
Percentage Calculator
Calculate percentages, increases, decreases, and ratios
Ratio Calculator
Simplify, scale, and find equivalent ratios
Average Calculator
Calculate mean, median, mode, range, and standard deviation
GCD & LCM Calculator
Find greatest common divisor and least common multiple
Prime Number Tools
Check, factorize, generate, and find prime numbers
Equation Solver
Solve linear and quadratic equations step by step
Unit Converter
Convert between length, weight, temperature, volume, and more
Fraction Calculator
Add, subtract, multiply, divide, and simplify fractions
Roman Numeral Converter
Convert between Roman numerals and decimal numbers
Fibonacci Calculator
Generate sequences, find nth terms, and check Fibonacci numbers
Logarithm Calculator
Calculate log₁₀, ln, log₂, and custom base logarithms
Statistics Calculator
Mean, median, mode, standard deviation, and more
Number Base Converter
Convert between binary, octal, decimal, hex, and any base
Matrix Calculator
Trigonometry Calculator
Learn Math Tools
Key concepts and practical guides to level up your workflow.
📖 Glossary
A formula for updating the probability of a hypothesis given new evidence, foundational to statistical …
A mathematical notation describing the upper bound of an algorithm's time or space complexity as …
A discrete probability distribution modeling the number of successes in a fixed number of independent …
A branch of algebra operating on true/false values using AND, OR, NOT operators, foundational to …
A selection of elements without regard to order — n choose r equals n!/[r!(n-r)!].
A number of the form a + bi where i is the imaginary unit (square …
A measure of the linear relationship between two variables, ranging from -1 (inverse) to +1 …
An operation on two 3D vectors producing a vector perpendicular to both, with magnitude equal …
📘 Guides
Password generation requires cryptographic randomness and careful character selection. This guide covers the principles behind strong password generation, entropy calculation, and common generation mistakes to …
Learn the science behind password strength meters and entropy calculations. Understand what makes a password truly secure, how attackers crack weak passwords, and practical strategies …
Go beyond basic Markdown with advanced features supported by major platforms. Covers GFM tables, footnotes, task lists, math notation, Mermaid diagrams, and the differences between …
Percentages appear everywhere: discounts, tax rates, growth metrics, and exam scores. This guide covers the three core formulas and common calculation mistakes.
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