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How to Get Square Root on Calculator Iphone

Reviewed by Calculator Editorial Team

Calculating square roots on your iPhone calculator is straightforward once you know the right method. Whether you're using the standard calculator or the scientific version, this guide will show you exactly how to get accurate square root results.

Using the Standard Calculator

The standard calculator on iPhone doesn't have a dedicated square root button, but you can still calculate square roots using the following method:

  1. Open the Calculator app from your home screen.
  2. Tap the number you want to find the square root of.
  3. Press the "×" (multiply) button.
  4. Press the same number again.
  5. Press the "=" button to see the squared result.
  6. Press the "√" (square root) button to find the square root.

This method works because squaring a number and then taking the square root returns you to the original number. For example, √(9×9) = 9.

Using the Scientific Calculator

The scientific calculator provides a more direct way to calculate square roots:

  1. Open the Calculator app and switch to scientific mode by tapping the "±" button.
  2. Enter the number you want to find the square root of.
  3. Tap the "√" (square root) button to get the result immediately.

The scientific calculator uses the formula: √x = x^(1/2)

Keyboard Shortcuts

For faster calculations, you can use these keyboard shortcuts:

  • Press "√" followed by a number to calculate the square root.
  • For the standard calculator, press "×" after entering a number to square it, then press "√" to get the original number.

These shortcuts work in both the standard and scientific calculator modes.

Worked Examples

Let's look at some practical examples to illustrate how to calculate square roots on your iPhone calculator.

Example 1: Finding √16

  1. Enter "16" on the calculator.
  2. Press "×" then "16" again to get 256.
  3. Press "√" to get back to 16.

Example 2: Finding √25 using scientific mode

  1. Switch to scientific mode.
  2. Enter "25".
  3. Press "√" to get 5.
Number Square Root Verification
9 3 3 × 3 = 9
16 4 4 × 4 = 16
25 5 5 × 5 = 25

Frequently Asked Questions

Can I calculate square roots of negative numbers on my iPhone calculator?
No, the iPhone calculator only supports real numbers for square roots. Attempting to calculate the square root of a negative number will result in an error.
Is there a way to calculate square roots without using the calculator app?
Yes, you can use the Notes app or any text editor to perform calculations by hand using the methods described in this guide.
Can I use the iPhone calculator to find cube roots?
No, the iPhone calculator only provides square root functionality. For cube roots, you would need to use a different method or a more advanced calculator.