Math Calculators

Find the absolute value (distance from zero) of any number.

Convert National Senior Certificate percentages into admission points and check the statutory pass level.

Calculate circle area and circumference from radius or diameter.

Calculate C(n,r) and P(n,r) for any n and r.

Find the confidence interval for a sample mean, with margin of error, standard error, and critical value.

Calculate material density from mass in kilograms and volume in liters, with SI conversions.

Compute discounted prices, stacking promo codes, and final checkout totals.

Find the distance between two points in 2D or 3D.

Compute powers and roots of any number.

Model growth or decay over time.

Calculate n! for any positive integer.

Find out what score you need on the final exam to achieve your target grade.

Add, subtract, multiply, or divide fractions and simplify the result.

Convert a fraction to a decimal and percentage, and simplify it to lowest terms.

Convert any fraction to a percentage and decimal in one step.

Find the greatest common divisor and least common multiple.

Compute grade point average from total points and credit hours.

Plot and compare explicit functions with an interactive coordinate plane.

Calculate the margin of error and confidence interval for a survey proportion at any confidence level.

Convert markup percentages to margin and set profitable selling prices.

Find the mean, median, and mode of any dataset with range, sum, and count.

Find the remainder after division.

Find the probability between two values, z-scores, and the middle 68% and 95% ranges of a normal distribution.

Find percentage of a value, percentage increase/decrease, and ratios instantly.

Find the value at any percentile, or the percentile rank of a specific value, from a data set.

Determine if a number is prime and find factors.

Convert favourable and total outcomes into a probability, decimal, and odds.

Find any side of a right triangle given two sides.

Solve any ax^2 + bx + c = 0 equation.

Solve proportions like a:b = c:d and scale values by a ratio.

Round numbers to any decimal place or whole number.

Calculate the survey or study sample size needed for a target confidence level and margin of error.

Full scientific calculator with trigonometry, logarithms, exponents, factorials, and keyboard support.

Find the slope and equation of a line through two points.

Calculate the volume of a cube, prism, sphere, cylinder, or cone.

Calculate mean, median, sample and population standard deviation, variance, and more from a list of numbers.

Convert correct answers into a test percentage instantly.

Solve SSS, SAS, ASA, and AAS triangles with the law of sines and cosines, including area and perimeter.

Calculate sample and population variance, standard deviation, mean, and range from a list of values.

Standardize an observation using its mean and standard deviation.