What is the square root of 91?

Answer

9.539392

91 is not a perfect square9.539392² = 9.539392² ≈ 919.539392 × 9.539392 = ≈ 91

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How We Calculated This

√n — the number which, multiplied by itself, equals n

√91 = 9.539392

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Calculated using verified formulas. Last updated March 2026.