Math

14 free online Math tools — fast, private and browser-based. No signup, no limits.

Percentage Calculator — Calculate percentage of a number, what percent X is of Y, and change
Age Calculator — Calculate your exact age in years, months, days and find your next birthday
Date Difference — Calculate the number of days, weeks and months between any two dates
Scientific Calculator — Full scientific calculator with trigonometry, logarithms and powers
BMI Calculator — Calculate your Body Mass Index with metric or imperial units
Fibonacci Generator — Generate the Fibonacci sequence up to N terms with sum display
Prime Checker — Check if a number is prime and find all primes within a range
Statistics Calculator — Calculate mean, median, mode, variance and standard deviation
Number Formatter — Format numbers with locale-specific separators and currency symbols
Matrix Calculator — Perform 2×2 and 3×3 matrix operations: add, multiply, transpose and determinant
Quadratic Equation Solver — Solve ax²+bx+c=0 and see roots, discriminant, vertex and SVG parabola
Fraction Calculator — Add, subtract, multiply and divide fractions with step-by-step results
Trigonometry Calculator — Calculate all six trig functions with degrees/radians and unit circle diagram
Logarithm Calculator — Calculate log₁₀, ln, log₂ and custom-base logarithms with antilog