What is the square root of 4?

Answer

2 (exact)

4 is a perfect square2² = 42 × 2 = 4

Need a custom calculation?

Open the full calculator with custom inputs

How We Calculated This

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

√4 = 2

Related Calculations

What is the square root of 1?1 (exact)What is the square root of 2?1.414214 What is the square root of 3?1.732051 What is the square root of 5?2.236068 What is the square root of 6?2.449490

Calculated using verified formulas. Last updated March 2026.