Math Calculators
Math & Percentage Calculators
Free calculators for percentages, fractions, GPA, and all your math needs.
Percentage Calculator
Calculate percentages and changes
Percentage Change
Find increase or decrease %
Fraction Calculator
Add, subtract, multiply fractions
GPA Calculator
Calculate your grade point average
Grade Calculator
What grade do I need?
Average Calculator
Find mean, median, mode
Scientific Calculator
Advanced math functions
Ratio Calculator
Solve and simplify ratios
Random Number Generator
Generate random numbers
Roman Numeral Converter
Convert to/from roman numerals