Basic Calculator
A fast, phone-style calculator for everyday arithmetic, percentages and quick calculations.
About the Basic Calculator
A basic calculator is useful for quick everyday arithmetic such as addition, subtraction, multiplication, division and percentages. This phone-style POSLATOR calculator runs directly in your browser.
How to use this calculator
- Tap the number buttons to enter a value.
- Choose an operation such as +, −, × or ÷.
- Use % for a percentage, ± to change the sign, or ⌫ to remove the last digit.
- Press = to see the result. You can also use your keyboard for faster calculations.
How the calculation works
The calculator builds a mathematical expression from your button presses and evaluates it locally in your browser. It does not send your calculation to a server.
Example
For example, enter 125, tap ×, enter 8, and tap = to calculate 125 × 8 = 1,000.
Things to keep in mind
- Use parentheses when you want to control the order of operations in a more complex expression.
- Use the percentage button for quick percentage calculations such as 15% of a value.
- Check the expression shown above the large result before using a number in an important decision.
- For advanced functions such as powers and more scientific operations, use the Scientific Calculator.
Frequently asked questions
Is the basic calculator free?
Yes. It is free to use and does not require an account.
Can I use my keyboard?
Yes. Number keys, arithmetic operators, Enter, Backspace, Escape and the percent key are supported.
Does POSLATOR store my calculations on a server?
No. The calculation itself runs in your browser. Calculator history, when available, is saved locally on your device.