Rounding Calculator
Round a number to the nearest tenth, hundredth, whole number, ten or hundred
Rounding Calculator
How to Round to the Nearest Place
Find the place and look at the digit to its right: 5–9 — add 1 to the place digit, 0–4 — leave it; then drop the digits to the right (in the whole part, replace them with zeros).
Example: 26.553 to the nearest hundredth
26.553
5 hundredths place 3 The thousandths digit decides
26.553
26.55closer 26.555midpoint 26.56
3 < 5 → keep 26.55
| Place | Digit | Rounded to this place |
|---|---|---|
| ten thousands | 5 | 50,000 |
| thousands | 2 | 52,000 |
| hundreds | 4 | 52,400 |
| tens | 3 | 52,440 |
| ones | 7 | 52,438 |
| tenths | 8 | 52,437.8 |
| hundredths | 1 | 52,437.82 |
| thousandths | 5 | 52,437.816 |
| ten-thousandths | 6 | 52,437.8156 |
| Rounding | Answer |
|---|---|
| 35.78 to the nearest whole number | 36 |
| 26.553 to the nearest hundredth | 26.55 |
| 729,832 to the nearest thousand | 730,000 |
| 18.375 to the nearest hundredth | 18.38 |
| 136 to the nearest ten | 140 |
| 48 to the nearest ten | 50 |
| 845,001 to the nearest thousand | 845,000 |
| 3.249 to the nearest tenth | 3.2 |
| 5.193 to the nearest hundredth | 5.19 |
| 52,437 to the nearest thousand | 52,000 |
| 4,952 to the nearest hundred | 5,000 |
| 783 to the nearest hundred | 800 |
Common mistakes
- Round once, from the original number: 2.449 to the nearest tenth is 2.4. Rounding in two steps, 2.449 → 2.45 → 2.5, is wrong — the 5 in 2.45 was itself made by rounding.
- A halfway value rounds away from zero in school and in Excel ROUND: 2.5 → 3. Round half to even (banker's rounding, Python round()) picks the even neighbour instead: 2.5 → 2, 3.5 → 4.
- Negative numbers round by their digits, and a halfway value goes away from zero: -2.5 → -3, not -2.
- “To the nearest tenth” means one digit after the decimal point, not the tens: 31.4159 to the nearest tenth is 31.4, to the nearest ten — 30.
See Also
- Square Root Calculator - Calculate the square root of any number
- Decimal to Fraction Converter - Convert Decimal to Fraction
- Fraction to Decimal Converter - Convert Fraction to Decimal
FAQ
How do you round to the nearest tenth?
Look at the hundredths digit, the second after the decimal point: 5–9 add 1 to the tenths digit, 0–4 leave it, then drop everything after the tenths. 3.249 → 3.2 (4 < 5); 0.96 → 1.0 (6 ≥ 5, and the 9 carries over).
Does 5 round up?
In school rounding and Excel ROUND, a 5 with only zeros after it is exactly halfway and goes away from zero: 18.375 → 18.38, 2.5 → 3, -2.5 → -3. Round half to even (banker's rounding) picks the even neighbour instead: 2.5 → 2.
How is rounding to a place different from significant figures?
Rounding to a place fixes where the last digit stands — the nearest hundredth always keeps two decimals, whatever the size of the number. Significant figures count digits from the first non-zero one: 0.004567 to the nearest hundredth is 0.00, but to 2 significant figures it is 0.0046.