Free math calculators for students, professionals, and everyday use.
- Percentage Calculator — Find X% of any number
- Square Root Calculator — √ instantly
- Fraction Calculator — Add, subtract, multiply, divide
- Average Calculator — Mean, median & mode
- Random Number Generator — Pick any number
- Discount Calculator — Sale price calculation
- GPA Calculator — Semester and cumulative GPA by course and credit hours
- Grade Calculator — Final grade and weighted average for any course
- Scientific Calculator — Sin, cos, tan, log, factorial, and more
- Ratio Calculator — Solve proportions and simplify ratios
- Quadratic Formula Calculator — Solve ax² + bx + c = 0 with step-by-step work
- Prime Number Calculator — Check, factorize, and list prime numbers
- Exponent Calculator — Calculate any base to any power
- Logarithm Calculator — Log base 10, ln, and any custom base
- GCD and LCM Calculator — Greatest common divisor and least common multiple
- Combination and Permutation Calculator — C(n,r) and P(n,r)
- Rounding Calculator — Round to decimal places or place values
- Significant Figures Calculator — Round to sig figs