100.15 Rounded to the Nearest Tenth

Rounding Calculator
Round
to the

What is 100.15 rounded to the nearest tenth?

Answer

100.15 rounded to the nearest tenth is
100.2

Nearest tenth — 1 decimal place. The hundredths digit decides: 5⁠–⁠9 round up, 0⁠–⁠4 keep.

Exactly halfway between 100.1 and 100.2 — equally close to both. The halfway rule rounds away from zero, as in school and Excel ROUND: 100.2. Round half to even (banker's rounding) gives 100.2.

100.15

1 tenths place 5 The hundredths digit decides

100.15
100.1 100.2halfway → away from zero

midpoint 100.15

5 with only zeros after it → halfway, away from zero: 100.2

100.15 rounded to every place
PlaceRounded
to the nearest thousandth100.150
to the nearest hundredth100.15
to the nearest tenth100.2
to the nearest whole number100
to the nearest ten100
to the nearest hundred100
to the nearest thousand0

See Also

Recalculate with different values ↑

Numbers rounded to the nearest tenth

NumberRounded
71.84171.8
74.36274.4
7575.0
75.3675.4
78.578.5
79.2579.3
79.679.6
80.580.5
83.88883.9
8484.0
8585.0
88.388.3
9696.0
9999.0
100100.0
100.15100.2
100.48100.5
102.65102.7
104104.0
105105.0
112112.0
112.324112.3
113113.0
113.04113.0
113.1113.1
120120.0
123.456123.5
124124.0
124.6124.6
125125.0

FAQ

What is 100.15 rounded to the nearest tenth?

100.15 rounded to the nearest tenth is 100.2

Is 100.15 closer to 100.1 or 100.2?

Equally close — 0.05 from each. The halfway rule rounds away from zero, to 100.2; round half to even (banker's rounding) gives 100.2.

How many decimal places does rounding to the nearest tenth keep?

One: the answer always has exactly 1 digit after the decimal point, trailing zeros included — 100.15 → 100.2.

See Also