√36 = 6. The square root of 36 is 6, because 6 × 6 = 36. 36 is a perfect square.
√36 at a glance.
Value
6
Rounded
6
Perfect square?
Yes
36 squared
1,296
Checking it in your head
A perfect square's root is a whole number, so check by multiplying back: 6 × 6 = 36. Its last digit fits too: squares only ever end in 0, 1, 4, 5, 6 or 9, and 6² ends in 6.
Frequently asked questions
What is the square root of 36?
The square root of 36 is 6, because 6 × 6 = 36. 36 is a perfect square.