Round to the Nearest Tenth
Rounding to the nearest tenth keeps one decimal place: 47.386 becomes 47.4, and 3.14159 becomes 3.1. Tenths are the working precision of weather temperatures, BMI scores, star ratings and most kitchen scales — precise enough to show a trend, coarse enough to read at a glance. All values on this page use standard half-up rounding.
Round to the Nearest Tenth reference last updated · reference source
Loading calculator…
Dated static reference; no live data is fetched. Verify current source values and assumptions before relying on results.
What this tool does
Rounding to the nearest tenth keeps one decimal place: 47.386 becomes 47.4, and 3.14159 becomes 3.1. Tenths are the working precision of weather temperatures, BMI scores, star ratings and most kitchen scales — precise enough to show a trend, coarse enough to read at a glance. All values on this page use standard half-up rounding.
How to use the Round to the Nearest Tenth
- Check Number to round: 47.386.
- Check Round to: places.
- Check Decimal places: 1.
- Review the Round to the Nearest Tenth 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 Tenth: Number to round = 47.386; Round to = places; Decimal places = 1. Rounding to the nearest tenth keeps one decimal place: 47.386 becomes 47.4, and 3.14159 becomes 3.1. Tenths are the working precision of weather temperatures, BMI scores, star ratings and most kitchen scales — precise enough to show a trend, coarse enough to read at a glance. All values on this page use standard half-up rounding.
Inputs
- Number to round47.386
- Round toDecimal places
- Decimal places1
- Significant figures3
- Nearest multiple of100
Result
- Rounded value47.4
- Decimal places1
Round to the Nearest Tenth — worked examples
| Number | Rounded |
|---|---|
| 47.34 | 47.3 |
| 47.35 | 47.4 |
| 47.36 | 47.4 |
| 3.14159 | 3.1 |
| 0.04 | 0 |
| 0.05 | 0.1 |
| 98.64 | 98.6 |
| 98.65 | 98.7 |
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 tenth keeps one decimal place: 47.386 becomes 47.4, and 3.14159 becomes 3.1. The reference table on this page shows 8 worked examples computed with exactly that rule.
A value like 47.35 sits near the tie between 47.3 and 47.4; stored binary fractions make exact ties rare, and the half-up rule sends a true halfway value up to 47.4.
Use it for measured quantities that genuinely vary in tenths — temperature, weight on a bathroom scale, ratings and sports statistics like batting averages (shown to three places by tradition, but computed through tenths-style steps).
3.14159 rounds to 3.1. You can verify it in the table on this page, or type any other value into the calculator above.
Because a tenth of a degree is clinically meaningful: 98.6 °F is the classic normal average, 100.4 °F (38.0 °C) is the standard fever threshold used by the CDC, and the gap between them is only eighteen tenths. Tenths are the coarsest step that still shows a fever rising or breaking, which is why thermometers never display whole degrees.
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.