Square roots of numbers 1 to 1,000

Pick a number to see its square root in simplest radical form and as a decimal, worked out step by step. Perfect squares are highlighted. For other inputs use the square root calculator.

How the square roots of 1 to 1,000 break down

  • 31 of the numbers are perfect squares (1, 4, 9 … 961) with whole-number roots from 1 to 31.
  • 362 more can be simplified because they contain a perfect-square factor, such as √72 = 6√2 or √500 = 10√5.
  • The remaining 607 are square-free, so their roots are already in simplest form (√2, √30, √997 …).
Perfect squares from 1 to 1,000
nn²nn²nn²nn²
119811728925625
24101001832426676
39111211936127729
416121442040028784
525131692144129841
636141962248430900
749152252352931961
8641625624576

Highlighted numbers are perfect squares. For decimals, fractions, negative numbers or values above 1,000, use the square root calculator.

Square roots of 1–100

Perfect squares in this block: 1 (√ = 1), 4 (√ = 2), 9 (√ = 3), 16 (√ = 4), 25 (√ = 5), 36 (√ = 6), 49 (√ = 7), 64 (√ = 8), 81 (√ = 9), 100 (√ = 10). Every other root in the block lies between 1 and 10.

Square roots of 101–200

Perfect squares in this block: 121 (√ = 11), 144 (√ = 12), 169 (√ = 13), 196 (√ = 14). Every other root in the block lies between 10 and 15.

Square roots of 201–300

Perfect squares in this block: 225 (√ = 15), 256 (√ = 16), 289 (√ = 17). Every other root in the block lies between 14 and 18.

Square roots of 301–400

Perfect squares in this block: 324 (√ = 18), 361 (√ = 19), 400 (√ = 20). Every other root in the block lies between 17 and 20.

Square roots of 401–500

Perfect squares in this block: 441 (√ = 21), 484 (√ = 22). Every other root in the block lies between 20 and 23.

Square roots of 501–600

Perfect squares in this block: 529 (√ = 23), 576 (√ = 24). Every other root in the block lies between 22 and 25.

Square roots of 601–700

Perfect squares in this block: 625 (√ = 25), 676 (√ = 26). Every other root in the block lies between 24 and 27.

Square roots of 701–800

Perfect squares in this block: 729 (√ = 27), 784 (√ = 28). Every other root in the block lies between 26 and 29.

Square roots of 801–900

Perfect squares in this block: 841 (√ = 29), 900 (√ = 30). Every other root in the block lies between 28 and 30.

Square roots of 901–1,000

Perfect squares in this block: 961 (√ = 31). Every other root in the block lies between 30 and 32.

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