Geometry: Calculators and Tools
Areas, volumes and the Pythagorean theorem with figures and examples.
Geometry is the math you can see. How much paint for a wall, how much water fits in a tank, how big a TV screen really is: all of it is geometry disguised as an everyday problem.
The calculators in this category cover the most common plane figures and solids, show the formula applied to your numbers and explain where each formula comes from. The idea is that after using them a few times, you can do the calculation in your head.
Area and Perimeter Calculator
Rectangle, square, triangle, circle, trapezoid, parallelogram and rhombus, with the formulas on display.
Open tool →Volume Calculator
Cube, box, cylinder, cone, sphere and pyramid, with volume, surface area and liters.
Open tool →Pythagorean Theorem Calculator
Find the hypotenuse or a leg of a right triangle, with angles and area as a bonus.
Open tool →Where to start. If you are just starting out, the Pythagorean theorem is the friendliest way in. If you need to measure rooms or packaging, you will find what you are looking for in area and perimeter and in volume.
Explore other categories
Math
Percentages, proportions and equations explained step by step.
Explore →Physics
Motion and electricity with the basic formulas well explained.
Explore →Conversions
Units of measurement and number bases, from kilometers to binary.
Explore →Daily Life
Dates, deadlines, age and averages for everyday calculations.
Explore →Utilities
Word counter and secure password generator, right in your browser.
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