Online Calculator

 
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How to Use a Calculator

Calculators are essential for calculating the result of mathematical problems. They can come in the form of a basic online calculator like the one above, a scientific calculator, or a task-specific calculator such as our long division calculator.

The standard operations that are on nearly every calculator are:

Addition (+), Subtraction (), Multiplication (×), and Division (÷):
Enter numbers and press the respective operator button. For example, to calculate 10 × 4, press 10, ×, 4, followed by =.
Equals (=):
Use the = button to calculate and display the result of your equation.
Percentage (%):
Use the % button to convert the number from percent to decimal.
Plus/Minus (+/-):
Use the +/- button to switch numbers from positive to negative or vice-versa.