17.5 Rounded to the Nearest Whole Number

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What is 17.5 rounded to the nearest whole number?

Answer

17.5 rounded to the nearest whole number is
18

Nearest whole number — no decimal places. The tenths digit decides: 5⁠–⁠9 round up, 0⁠–⁠4 keep; the decimals are dropped.

Exactly halfway between 17 and 18 — equally close to both. The halfway rule rounds away from zero, as in school and Excel ROUND: 18. Round half to even (banker's rounding) gives 18.

17.5

7 ones place 5 The tenths digit decides

17.5
17 18halfway → away from zero

midpoint 17.5

5 with only zeros after it → halfway, away from zero: 18

17.5 rounded to every place
PlaceRounded
to the nearest thousandth17.500
to the nearest hundredth17.50
to the nearest tenth17.5
to the nearest whole number18
to the nearest ten20
to the nearest hundred0

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Numbers rounded to the nearest whole number

NumberRounded
12.513
13.514
14.515
1515
15.215
15.516
15.616
15.7416
16.216
16.316
16.416
16.4516
16.517
17.2617
17.417
17.518
19.520
20.120
22.523
23.26523
24.224
25.526
25.5426
29.3629
34.334
3535
35.2435
35.536
35.7836
36.336

FAQ

What is 17.5 rounded to the nearest whole number?

17.5 rounded to the nearest whole number is 18

Is 17.5 closer to 17 or 18?

Equally close — 0.5 from each. The halfway rule rounds away from zero, to 18; round half to even (banker's rounding) gives 18.

Does rounding to the nearest whole number keep any decimals?

No: the answer is a whole number, the fraction is dropped after the tenths digit decides — 17.5 → 18.

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