Grade and school calculators

Calculate weighted grade from score and weight.

Calculate the final exam score needed to reach a target course grade.

Calculate a weighted grade from three grade/weight pairs.

Calculate weighted university grade from marks and credits.

Calculate test percentage and letter-style score from points earned.

Calculate GPA from total grade points and credits.

Convert GPA to an approximate percentage using a simple scale.

Calculate the average of comma-separated numbers.

Calculate average order value from revenue and number of orders.

Calculate ARPA from recurring revenue and accounts.

Calculate a weighted average from values and weights.

Calculate average share price after multiple purchases.

Calculate the average score for a class or group.

Calculate average speed from distance and time.

Add, subtract, multiply, or divide two fractions.

Convert a decimal to an approximate fraction.

Convert a fraction into decimal and percent form.

Convert a fraction into a percentage.

Convert a percent into a simplified fraction.

Reduce a fraction to its simplest form.

Generate equivalent fractions for a given fraction.

Calculate probability from favorable outcomes and total outcomes.

Convert probability to percentage and odds.

Calculate count, sum, mean, median, min, max, and range.

Calculate mean, variance, and standard deviation from comma-separated numbers.

Calculate triangle area from base and height.

Calculate hypotenuse, area, and perimeter from two legs of a right triangle.

Calculate circle area and circumference from radius.

Calculate the area and circumference of a circle from radius.

Solve ax² + bx + c = 0 using the quadratic formula.

Find slope from two coordinate points.

Find slope-intercept form from slope and a point.

Convert Ax + By = C into y = mx + b form.

Create point-slope form from a point and slope.

Calculate the hypotenuse from two right-triangle legs.