Basic Calculator Tool
Standard arithmetic calculator
Basic Calculator ToolStandard arithmetic calculator
Use this simple calculator for everyday arithmetic. You can add, subtract, multiply, or divide numbers without opening a separate app or writing the calculation down first.
Select the number buttons to build the value you want to use. The current number appears in the display at the top of the calculator.
Select the button for addition, subtraction, multiplication, or division. Then enter the next number in your calculation.
Select the equals button to complete the calculation. Your answer will replace the previous value in the display.
Use C to clear the current calculation. The plus or minus button changes a positive value to a negative value, and the percent button converts a number to its decimal percentage.
Add totals, find differences, multiply quantities, or divide a value into equal parts. Decimal numbers are supported too.
The calculator keeps the layout clear and compact, so you can work through a short calculation at a glance.
The buttons can be used for simple calculations such as these:
| Task | Calculation | Answer |
|---|---|---|
| Add two prices | 24.50 + 13.25 | 37.75 |
| Find a difference | 100 - 38 | 62 |
| Multiply quantities | 8 × 6 | 48 |
| Share a total | 144 ÷ 12 | 12 |
The percent button changes the displayed number into a decimal value. For example, entering 25 and selecting percent gives 0.25. You can then use that value in another operation, such as multiplying 80 by 0.25 to find 25 percent of 80.
For more advanced expressions involving powers, roots, trigonometry, and logarithms, use the Scientific Calculator. For a list of numbers that needs a mean, median, or mode, try the Average Calculator.
Before dividing, make sure the second number is not zero. A zero divisor does not produce a valid result.
Select the decimal button once for a number such as 7.5. Selecting it again will not add another decimal point.
Use the plus or minus button when you need to switch the current value from positive to negative or back again.