Rounding Calculator › round 138 to the nearest 100
Round 138 to the Nearest 100
138 rounded to the nearest hundred = 100
| Rounded to nearest 100 | 100 |
| Rounded up | 200 |
| Rounded down | 100 |
Why 138 rounds to 100
138 sits between 100 and 200 on the number line. It is 38 above 100 and 62 below 200, so it is closer to 100.
The shortcut: look at the digit just right of the hundreds place — that deciding digit is 3. Since 3 is less than 5, you round down, 138 → 100. The halfway mark here is 150.
Round 138 to other place values
Round nearby numbers to the nearest 100
Frequently asked questions
What is 138 rounded to the nearest 100?
138 rounded to the nearest hundred (100) is 100.
How do you round 138 to the nearest 100?
Look at the digit to the right of the hundreds place. Here 138 sits between 100 and 200; since it is closer to 100 (round-half-up), the answer is 100.