Square Root of 400

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Square root of

What is the square root of 400?

Answer: √400 = 20 (Perfect Square)
The square root of 400 is 20.
400 is a perfect square because 20 × 20 = 400.

Verification

√400 = 20

20 × 20 = 400

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About "Square Root Calculator" Calculator

This calculator will help you find the square root of any number. For example, it can help you find out what is the square root of 400? (The answer is: 20). Enter a number (e.g. '400') and hit the 'Calculate' button.

"Square Root Calculator" Calculator

Square root of

Square Root Table

NumberSquare RootPerfect Square
38519.621417No
38619.646883No
38719.672316No
38819.697716No
38919.723083No
39019.748418No
39119.77372No
39219.79899No
39319.824228No
39419.849433No
39519.874607No
39619.899749No
39719.924859No
39819.949937No
39919.974984No
40020Yes
40120.024984No
40220.049938No
40320.07486No
40420.099751No
40520.124612No
40620.149442No
40720.174241No
40820.19901No
40920.223748No
41020.248457No
41120.273135No
41220.297783No
41320.322401No
41420.34699No

FAQ

What is the square root of 400?

√400 = 20 (Perfect Square)

Is 400 a perfect square?

Yes, 400 is a perfect square because √400 = 20

What number squared equals 400?

20 squared equals 400 (20 × 20 = 400)

See Also