What is the Square Root of 27?

Instant answer with step-by-step solution

√27 = 5.1961524227
√27 = 5.1961524227
⚠ 27 is not a perfect square — result rounded to 10 significant figures

Step-by-step explanation

  1. We need to find √27 — a number that when multiplied by itself equals 27.
  2. 27 is not a perfect square. Its square root is irrational.
  3. It falls between √25 = 5 and √36 = 6.
  4. Using the formula √N = N^(1/2): √27 = 27^0.5 = 5.1961524227
  5. Verification: 5.1961524227 × 5.1961524227 ≈ 27 ✓ (rounded to 10 significant figures)

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Related calculations

Square root of 2727 square root√26 = 5.0990195136√28 = 5.2915026221√25 = 5√29 = 5.3851648071√30 = 5.4772255751√24 = 4.8989794856

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Also see

Square Root Laws Square Root Chart Easiest Method Negative Square Roots