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Square root of 14

√14 ≈ 3.7417. The square root of 14 is about 3.7417. 14 is not a perfect square, so √14 is irrational: its decimals never end or repeat.

√14 at a glance.
Value3.74165739
Rounded3.7 (1 dp) · 3.74 (2 dp) · 3.742 (3 dp)
Simplest radical form√14
Perfect square?No — between 3² = 9 and 4² = 16
14 squared196

Estimating √14 in your head

Start from the nearest perfect square, 4² = 16. 14 is 2 less than that. Divide the difference by twice the root, 8, and subtract it:

√14 ≈ 4 − 2 ÷ 8 ≈ 3.75

The true value is 3.7417, so the one-step estimate is off by about 0.008. The estimate always comes out slightly high, and it is closest when 14 is near a perfect square. The method is explained in estimating square roots in your head.

Can √14 be simplified?

No. 14 has no perfect-square factor besides 1, so √14 is already in simplest radical form.

Frequently asked questions

What is the square root of 14?

The square root of 14 is about 3.7417. 14 is not a perfect square, so √14 is irrational: its decimals never end or repeat.

Is 14 a perfect square?

No. It lies between 3² = 9 and 4² = 16.

What is √14 in simplest radical form?

√14 is already in simplest form: 14 has no square factor other than 1.

Practise estimating square roots

Nearby: √13 · √15 · all square roots to 150