🧮 Everyday Math Calculators

Compare two package prices after converting count, mass, or volume to one consistent unit.

Calculate and convert the area of rectangles, triangles, circles, trapezoids, parallelograms, and ellipses.

Calculate and convert volumes for seven common prisms, round solids, cubes, and pyramids.

Evaluate bounded real-number expressions with powers, roots, logs, factorials, and trigonometry.

Solve a plane triangle from SSS, SAS, or two angles and an opposite side, with unit conversion.

Break an integer into exact prime powers and count its positive divisors.

Solve a missing side of a right triangle and convert the result between length units.

Work out a percentage of a number, what percent one number is of another, and percentage increase or decrease.

Split the bill and work out the tip per person in seconds — choose the tip percent and number of people.

Work out the sale price and how much you save from a percentage discount.

Add sales tax or VAT to a price to see the tax amount and total you'll pay.

Calculate your grade point average on the 4.0 scale from your course grades and credit hours.

Work out profit margin and markup from your cost and selling price — and see the difference between them.

Estimate the fuel cost of any trip from the distance, your vehicle's efficiency, and the price of fuel.

Add, subtract, multiply, or divide two fractions and get the simplified result plus its decimal value.

Convert your exam marks into a percentage — enter marks obtained and total marks to get your result and grade.

Find the arithmetic mean, median, sum, range, minimum, and maximum for a list of numbers.

Solve the missing fourth term in an equivalent proportion written as a:b = c:x.

Round positive or negative numbers to decimal places, whole places, tens, hundreds, or beyond.

Round a number to 1–15 significant figures and see its scientific notation and rounding place.

Generate up to 100 secure random integers in an inclusive range, with optional duplicate prevention.

Convert a finite decimal to an exact fraction in lowest terms without floating-point approximation.

Reduce one integer fraction to lowest terms and see its mixed-number and decimal forms.

Find the greatest common factor and least common multiple of 2–20 integers.