CalculateStuff.com, the place where stuff gets calculated! We offer a wide and ever growing range of advanced online calculators.

Symbolab: equation search and math solver - solves algebra, trigonometry and calculus problems step by step

Explore math with our beautiful, free online graphing calculator. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more.

A simple but very useful calculator, online and completely free.

Use the keypad to enter the first number you want to calculate. For example, if you want to add 5 and 3, enter "5". Choose the operation: Select the operation you want to perform. For …

Percentage Calculator Calculate percentage additions and deductions with our handy calculator.

This is a very powerful Scientific Calculator You can use it like a normal calculator, or you can type formulas like (3+72)2 It has many...

You can add a scientific keypad to calculate logarithms, a trigonometric keypad to calculate angles, and a fraction keypad to form, add, subtract, divide, and multiply fractions.

Aug 1, 2025 · Percentage calculator to find percentage of a number, calculate x as a percent of y, or find a number given percent of the total. Using percentage formulas.

To calculate the total cost, simply use the addition key: "20+12%" yields $22.40. For discounts, like a 20% store-wide reduction, key in "20-20%" to find the reduced price, then add the tax if …