Education & Math Tools
GPA, statistics, and everyday math calculators for students and anyone who needs a quick, reliable answer.
- GPA Calculator
Calculate a weighted GPA on a 4.0 scale from letter grades and credit hours. Free, instant.
- Percentage Calculator
Calculate percentages three ways: X% of Y, X is what % of Y, and percent change. Free, instant.
- Quadratic Solver
Solve ax² + bx + c = 0 for real or complex roots instantly. Free, instant.
- Statistics Calculator
Calculate mean, median, mode, range, variance, and standard deviation from a list of numbers. Free, instant.
- Fraction Simplifier
Simplify a fraction to its lowest terms and see its decimal equivalent. Free, instant.
- Scientific Notation
Convert numbers between standard and scientific notation instantly. Free, instant.
- Citation Generator
Generate APA and MLA formatted citations from author, title, and source details. Free, instant.