CalculynPercentages · Fractions · Statistics
Math calculators
The clever shortcuts. 15 free calculators.
Most popular
Percentage Calculator
Work out any percentage of a number in an instant.
Scientific Calculator
Type any expression — powers, roots, trig, logs and factorials — and get the answer instantly.
Fraction Calculator
Add, subtract, multiply and divide fractions with simplified answers.
GPA Calculator
Calculate your grade point average from letter grades and credit hours.
All math calculators
Average Calculator
Find the mean, median, mode and range of a list of numbers.
Circle Calculator
Get a circle's area, circumference and diameter from its radius.
Exponent Calculator
Raise any number to a power, including negative and fractional exponents.
Final Grade Calculator
Find the score you need on your final exam to get the class grade you want.
Percent Error Calculator
Compare a measured value to the true value and get the percent error.
Percentage Change Calculator
Calculate the percent increase or decrease between two numbers.
Pythagorean Theorem Calculator
Find the missing side of a right triangle with a² + b² = c².
Quadratic Formula Calculator
Solve ax² + bx + c = 0 and see the roots, discriminant and vertex.
Ratio Calculator
Solve proportions and scale ratios: A is to B as C is to ?
Slope Calculator
Find the slope, equation and distance between two points.
Standard Deviation Calculator
Calculate standard deviation, variance and mean for a data set.