Square roots·√158
√158 =
√158
≈ 12.569805

Square root of 158 — 12.569805 (√158)

Irrational

The square root of 158 is about 12.569805, or exactly √158. It lies between 12 and 13.

As a decimal
≈ 12.569805
Simplified surd
√158 = √158
Between
12 < √158 < 13
Squared
158² = 24964
Cube root
∛158 ≈ 5.40612

Nearby numbers

√155 = √155√156 = 2√39√157 = √157√159 = √159√160 = 4√10√161 = √161

From 1 to 200

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How to read this

  • The decimal is rounded; the surd form is the exact value.
  • Pulling out a square factor simplifies the surd — √50 = 5√2.
  • If the number is not a perfect square, the decimal never ends (irrational).
  • Knowing which two integers it sits between is enough to estimate in your head.

Frequently asked questions

Q. What is the square root of 158?

About 12.569805, or exactly √158.

Q. Can the surd be simplified?

No — there is no square factor to pull out.

Q. Between which integers does it fall?

Between 12 and 13.

Q. What is the cube root of 158?

About 5.40612.