Round to the Nearest 10
Rounding to the nearest 10 keeps only the tens and above: 47 becomes 50, and 1,234 becomes 1,230. It is the first rounding most people learn in school and the natural granularity for headcounts, rough distances in metres or feet, and back-of-envelope money figures. All values on this page use standard half-up rounding.
Round to the Nearest 10 reference last updated · reference source
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What this tool does
Rounding to the nearest 10 keeps only the tens and above: 47 becomes 50, and 1,234 becomes 1,230. It is the first rounding most people learn in school and the natural granularity for headcounts, rough distances in metres or feet, and back-of-envelope money figures. All values on this page use standard half-up rounding.
How to use the Round to the Nearest 10
- Check Number to round: 47.
- Check Round to: nearest.
- Check Nearest multiple of: 10.
- Review the Round to the Nearest 10 result and its exact-value comparison table.
- Verify assumptions before applying the result.
Formula
Round half up at the chosen precision: decimal places count digits after the point, significant figures count digits that carry meaning from the first nonzero digit, and nearest-multiple rounding snaps to a grid such as the nearest 100.
- x
- Number to round
- mode
- Round to
- places
- Decimal places
- figs
- Significant figures
- multiple
- Nearest multiple of
Ties round half up (away from zero for the magnitude shown in most school contexts); financial rounding rules such as banker's rounding are not applied.
Worked example
Round to the Nearest 10: Number to round = 47; Round to = nearest; Nearest multiple of = 10. Rounding to the nearest 10 keeps only the tens and above: 47 becomes 50, and 1,234 becomes 1,230. It is the first rounding most people learn in school and the natural granularity for headcounts, rough distances in metres or feet, and back-of-envelope money figures. All values on this page use standard half-up rounding.
Inputs
- Number to round47
- Round toNearest multiple
- Decimal places2
- Significant figures3
- Nearest multiple of10
Result
- Rounded value50
- Multiple used10
Round to the Nearest 10 — worked examples
| Number | Rounded |
|---|---|
| 44 | 40 |
| 45 | 50 |
| 47 | 50 |
| 1234 | 1230 |
| 1235 | 1240 |
| 999 | 1000 |
| 1049 | 1050 |
| 1050 | 1050 |
Results explained
- Rounded value
- Rounded value from the formula above. Ties round half up (away from zero for the magnitude shown in most school contexts); financial rounding rules such as banker's rounding are not applied.
- Decimal places
- Decimal places from the formula above. Ties round half up (away from zero for the magnitude shown in most school contexts); financial rounding rules such as banker's rounding are not applied.
Frequently asked questions
Rounding to the nearest 10 keeps only the tens and above: 47 becomes 50, and 1,234 becomes 1,230. The reference table on this page shows 8 worked examples computed with exactly that rule.
A number ending in exactly 5, such as 45 or 1,235, is halfway between tens and rounds up — 45 becomes 50 and 1,235 becomes 1,240 under half-up.
Use it for quick estimates, classroom place-value work, crowd sizes and any number you intend to say out loud without a calculator.
1234 rounds to 1230. You can verify it in the table on this page, or type any other value into the calculator above.
Because on a number line the tens are the first landmarks a child can see: 47 is visibly closer to 50 than to 40, so the 'look at the next digit' rule has a picture behind it. Every other rounding on this page — hundreds, thousands, decimal places — is the same picture at a different zoom level.
No. Banker's rounding (round-half-to-even) is used in some scientific and financial standards to reduce bias over huge datasets, but this page — and the parent rounding calculator — always rounds a halfway value up, which is the convention taught in schools and used for tax forms.
Yes, with one nuance: the engine rounds halves toward positive infinity, so 47.5 rounds up to 48 at the nearest dollar while -47.5 becomes -47. Away from exact halves, negative values round to the nearest candidate just like positive ones.