Calculator

Using our online calculator is simple. Click the number buttons to enter digits, use the operation buttons (+, -, ×, ÷) to perform calculations, and press = to see the result. The C button clears everything, while the ⌫ button deletes the last digit. The ± button toggles between positive and negative numbers.

Yes, you can use your keyboard for faster input. Number keys (0-9) enter digits, +, -, *, / perform operations, Enter or = calculates the result, Escape or C clears the calculator, and Backspace deletes the last digit. This makes calculations much faster than clicking buttons.

Our calculator follows standard mathematical order of operations (PEMDAS/BODMAS). However, as a basic calculator, it performs operations sequentially as you enter them. For complex calculations requiring specific order of operations, enter operations in the sequence you want them calculated, or use parentheses if available in advanced mode.

To calculate percentages, use the basic operations. For example, to find 20% of 50: enter 50 × 20 ÷ 100 = 10. To add a percentage (like adding 15% tax to $100): enter 100 × 1.15 = 115. For our dedicated percentage calculator with easier percentage operations, visit our Percentage Calculator tool.

Unexpected results usually occur due to order of operations or decimal precision. Basic calculators perform operations sequentially, so 2 + 3 × 4 equals 20 (not 14) because it calculates (2 + 3) first, then multiplies by 4. For complex calculations, break them into steps or use parentheses to control the order.

Yes, you can select and copy the result from the display area. Click and drag to select the number, then use Ctrl+C (Windows) or Cmd+C (Mac) to copy. You can then paste the result into documents, spreadsheets, or other applications. The calculator maintains precision in the copied value.

Once the calculator page loads, it works entirely in your browser without requiring an internet connection. All calculations are performed locally on your device using JavaScript. However, you need an initial internet connection to load the page. Consider bookmarking it for easy access.

The calculator can handle very large numbers (up to approximately 1.7976931348623157e+308, which is JavaScript's maximum number). However, for extremely large numbers, you may encounter precision limitations due to floating-point arithmetic. For most everyday calculations, the calculator provides accurate results.

To enter decimal numbers, click the decimal point button (.) after entering the whole number part. For example, to enter 3.14, click 3, then ., then 1, then 4. You can only have one decimal point per number. The calculator handles decimal arithmetic with standard floating-point precision.

No, all calculations are performed entirely in your browser and nothing is sent to our servers or stored. Your calculation history is not saved, and the calculator resets when you refresh the page. This ensures complete privacy for your calculations.