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Rounding Calculator

Enter a number, choose the place value and get the rounded result with a short explanation. Choose ones to round to the nearest dollar, or hundredths to round to the nearest cent.

How rounding works

Find the place value you are rounding to, then look at the digit immediately to its right. If that digit is 0, 1, 2, 3 or 4, the digit you are rounding stays the same. If it is 5, 6, 7, 8 or 9, the digit goes up by one. Digits to the right become zeros, or drop off after the decimal point.

When the digit being rounded is a 9 and has to go up, it becomes 0 and the next place to the left goes up by one, so 999.995 rounded to hundredths is 1,000.00.

Halves round away from zero

This calculator rounds halfway values away from zero. A positive halfway value goes up and a negative one goes down, so 2.5 rounds to 3 and -2.5 rounds to -3. The answer keeps every decimal place you asked for, so 3.1 rounded to hundredths is 3.10.