free tool, no sign-up
Rounding Calculator
Round a number to the nearest tenth or hundredth, or any place from thousands to thousandths, with rounding up when the next digit is 5 or more.
Use a period for decimals, such as 2.345.
5 or above rounds away from zero.
Enter a number to round it. Try 2.345 to the nearest hundredth.
This rounding calculator rounds a number to the nearest tenth, hundredth, thousandth, or a whole-number place such as tens or thousands. It follows the school rule that 5 or above rounds away from zero, so 1.5 becomes 2 and 1.005 to the nearest hundredth becomes 1.01. The line under the answer names the digit that decided the round, and a small table shows the same number at the nearest one, tenth, and hundredth.
Round to a place from thousands through thousandths
Pick a place from thousands through thousandths, or enter 0 to 6 decimal places. The rounded number appears as you type, and the sentence under it names the digit that was checked. 2.345 to the nearest hundredth is 2.35, 146 to the nearest ten is 150, and 1.5 to the nearest one is 2.
The digit just to the right of the chosen place decides the round. 5 or above rounds away from zero, which is the usual school rule, and 4 or below leaves that place unchanged. Negative numbers follow the same rule, so −1.5 to the nearest one is −2. A small table also rounds the same number to the nearest one, tenth, and hundredth.
Frequently Asked Questions
How do you round to the nearest tenth?
The nearest tenth is one decimal place. Look at the hundredths digit. If it is 0, 1, 2, 3, or 4, the tenths digit stays the same. If it is 5 or more, the tenths digit goes up by 1. 6.34 to the nearest tenth is 6.3, and 6.35 is 6.4.
How do you round to the nearest hundredth?
The nearest hundredth is two decimal places. Look at the thousandths digit. 2.345 has a 5 there, so the hundredths digit goes from 4 to 5 and the result is 2.35. 1.005 also has a 5 in the thousandths place, so it rounds to 1.01.
What happens when the next digit is 5?
Rounding up starts at 5. This page uses the school rule that 5 or above rounds away from zero, so 1.5 to the nearest one is 2 and 2.5 is 3. Round half to even, sometimes called banker's rounding, would leave 2.5 at 2. A worksheet that says five or more rounds up is using the rule here.
How do negative numbers round?
The same 5-or-above test rounds away from zero. −1.5 to the nearest one is −2, and −146 to the nearest ten is −150. If the next digit is 4 or less, the place stays, so −1.4 to the nearest one is −1.