What is the square root of 15?

3.872983the square root of 15 is 3.872983. This is the number that, when multiplied by itself, equals 15. Square roots appear frequently in geometry, physics, statistics, and engineering calculations.

This calculation was generated using our Square Root Calculator. For custom values or more complex scenarios, try the full interactive calculator.

Below is the step-by-step calculation used to determine the result.

Answer

3.872983

√15 = 3.872983

Step-by-Step Solution

1

Find x where x × x = 15

2

15 is not a perfect square, so the result is irrational

3

√15 ≈ 3.872983

Try Your Own Numbers

Adjust the inputs below to calculate with different values