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MathBase
Square root, cube root, fourth root — all in one calculator.
The nth root of x is simply x raised to the power 1/n — so ³√27 = 27^(1/3) = 3. This equivalence connects roots to the broader framework of exponents and makes them easy to compute with a calculator or programming language that supports fractional powers.
Beyond basic algebra, nth roots appear in finance (CAGR uses an nth root over years), statistics (geometric mean), signal processing (RMS calculations), and physics (dimensional analysis). The cube root is especially common in volume-to-length conversions.
Result
4
ⁿ√x = x^(1/n)
What you entered
4th root of 256
256^(1/4)= 4Verification
4^4= 256Result
Result: 4
The 4th root of 256 is 4.