Round to the Nearest Hundredth – Online Calculator and Rules

Enter a number:

Result of rounding the number to the nearest hundredth:

≈0.00

Round to Hundreds

What Does It Mean to Round to the Nearest Hundredth?

Rounding a number to the nearest hundredth means simplifying the number by writing it with fewer significant digits while keeping its value close to what it originally was.

The rounded number is less precise (introducing some error), but easier to use in practice.

Most often, rounding a number to the nearest hundredth refers to mathematical rounding to the nearest hundredth part of the number.

Mathematical rounding to the nearest hundredth means rounding the number to two decimal places, where the difference between the original number and the rounded number is minimized.

Rounding Rules to the Nearest Hundredth:

  • The second digit after the decimal point (the hundredth part of the number) remains unchanged if the third digit after the decimal point is less than 5. (0; 1; 2; 3; 4)
  • The second digit after the decimal point increases by 1 if the third digit after the decimal point is 5 or greater. (5; 6; 7; 8; 9)

Examples:

  • 1.221 rounds to 1.22 because the third digit after the decimal point (1) is less than 5
  • 1.222 rounds to 1.22 because the third digit after the decimal point (2) is less than 5
  • 1.223 rounds to 1.22 because the third digit after the decimal point (3) is less than 5
  • 1.224 rounds to 1.22 because the third digit after the decimal point (4) is less than 5
  • 1.225 rounds to 1.23 because the third digit after the decimal point (5) is equal to 5
  • 1.226 rounds to 1.23 because the third digit after the decimal point (6) is greater than 5
  • 1.227 rounds to 1.23 because the third digit after the decimal point (7) is greater than 5
  • 1.228 rounds to 1.23 because the third digit after the decimal point (8) is greater than 5
  • 1.229 rounds to 1.23 because the third digit after the decimal point (9) is greater than 5
  • 3.141 rounds to 3.14 because the third digit after the decimal point (1) is less than 5
  • 1.5549 rounds to 1.55 because the third digit after the decimal point (4) is less than 5
  • 1.555001 rounds to 1.56 because the third digit after the decimal point (5) is equal to 5