![Apple Use Calculator on iPhone Manual Image](https://itsmanual.com/wp-content/uploads/2023/07/use-calculator-on-iphone-apple-support_6135654f97e3a-150x300.webp)
In the Calculator app you can perform basic arithmetic calculations with the standard calculator. Or use the scientific calculator for exponential, logarithmic, and trigonometric functions.
Ask Siri. Say something like: or Learn how to ask Siri.
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Use the scientific calculator
Rotate iPhone to landscape orientation.
![](https://itsmanual.com/wp-content/uploads/2023/07/use-calculator-on-iphone-apple-support_6135654f97e3a.webp)
Copy, delete, or clear numbers
- Copy a calculation result: Touch and hold the calculation result in the display, tap Copy, then paste the result somewhere else, such as a note or message.
- Delete the last digit: If you make a mistake when you enter a number, swipe left or right on the display at the top.
- Clear the display: Tap the Clear (C) key to delete the last entry, or tap the All Clear (AC) key to delete all entries.