Math Calculators
Get answers with the working shown, so you can check your homework, verify a report or understand the method.
- 8 tested calculators
- Formulas explained
- Private and free
Percentage Calculator
Three percentage problems, solved with steps.
Percentage Change Calculator
Percent increase, decrease and difference.
Fraction Calculator
Fraction arithmetic with simplified results.
Standard Deviation Calculator
Standard deviation, variance, mean and median.
Quadratic Equation Calculator
Roots, discriminant and vertex with steps.
GPA Calculator
Semester and cumulative GPA on a 4.0 scale.
Final Grade Calculator
Score needed on the final exam.
Ratio Calculator
Simplify ratios and solve proportions.
Answers with the working shown
From everyday percentages and discounts to statistics and quadratic equations, these calculators show each step of the calculation so you can learn the method and check your own work. They are useful for students, teachers, and anyone who needs a quick, reliable answer at work.