All calculators

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Education & Math

Calculate points-based or weighted grades, average assignments, and make a quick grading table.

Find the final exam score you need to reach a desired course grade.

Calculate credit-weighted GPA using an editable grade scale and optional course-level bonuses.

Add, subtract, multiply, divide, and convert fractions, mixed numbers, and decimals.

Solve percent-of, percentage change, reverse percentage, and percentage difference problems.

Find the arithmetic mean, sum, count, minimum, and maximum of a number list.

Convert standard and scientific notation and calculate with positive or negative exponents.

Divide nonnegative whole numbers with a quotient, remainder, and generated division steps.

Find integer factors, greatest common factors, and rational factors of quadratic trinomials.

Compare mean, median, modes, range, and sorted values for a dataset.

Solve a right triangle from two sides or one side and an acute angle.

Add room areas and quantities, convert square units, and estimate cost per square foot.

Calculate the area of six geometric shapes with conversions to common square units.

Calculate prism, cube, cylinder, sphere, and cone volumes in cubic units, liters, and US gallons.

Estimate concrete for slabs, pads, footings, walls, and columns, with waste, bag yield, and cost.

Estimate gravel volume and approximate weight from dimensions, density, and waste allowance.

Convert a rectangular bed, round bed, or known area and depth into cubic yards.

Estimate mulch in cubic yards and bags for a rectangular bed, round bed, or measured area.

Total multiple shifts, subtract breaks, and compare weekly regular and overtime hours.

Find elapsed time across midnight or dates, or add and subtract a duration from a clock time.