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Rounding Calculator: Round to Nearest Whole, Tenth, Cent

Q: How does standard rounding work?

If the digit after your target decimal place is 5 or greater, round up by 1. If 4 or less, keep the target digit unchanged.

Q: What is banker's rounding (round half to even)?

When a number ends in exactly .5, banker's rounding rounds to the nearest even integer (e.g. 2.5 rounds to 2, 3.5 rounds to 4).

Q: How do you round to the nearest cent?

Look at the third decimal place (thousandths). If it is 5 or greater, add 1 to the second decimal place (hundredths).

Q: What is 3.14159 rounded to the nearest tenth?

3.1 (the hundredths digit 4 is less than 5).

Q: What is round down (floor)?

Floor rounding always truncates towards negative infinity regardless of the following digits.

Q: Is this calculator private?

Yes, all rounding operations execute locally in your web browser.

Round decimal numbers to the nearest whole, tenth, cent, or fraction.

Quick Answer:Enter your number and choose precision (whole, 10th, 100th, cent) to view the rounded result and step-by-step digit inspection.

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How to Use the Rounding Calculator: Round to Nearest Whole, Tenth, Cent

1Enter your decimal number.
2Select rounding precision (nearest whole, tenth, cent, thousandth, or custom step).
3Choose rounding mode (standard half-up, banker's half-even, floor, ceiling).
4View the rounded value and intermediate steps.

Formula & How It Works

Rounding Rules and Modes

Half-Up: if next digit >= 5 round up, else truncate

Evaluates the deciding digit immediately following the target place value.

Worked Examples

Round to Cent

Input: $19.876

Explanation: Third decimal 6 is >= 5, rounding 7 up to 8.

Result: $19.88

Round to Tenth

Input: 3.14159

Explanation: Hundredths digit 4 is < 5, rounding down to 3.1.

Result: 3.1

Banker's Rounding

Input: 2.5 (half-even)

Explanation: Rounds to nearest even integer (2 instead of 3).

Result: 2

Frequently Asked Questions

How does standard rounding work?▼

If the digit after your target decimal place is 5 or greater, round up by 1. If 4 or less, keep the target digit unchanged.

What is banker's rounding (round half to even)?▼

When a number ends in exactly .5, banker's rounding rounds to the nearest even integer (e.g. 2.5 rounds to 2, 3.5 rounds to 4).

How do you round to the nearest cent?▼

Look at the third decimal place (thousandths). If it is 5 or greater, add 1 to the second decimal place (hundredths).

What is 3.14159 rounded to the nearest tenth?▼

3.1 (the hundredths digit 4 is less than 5).

What is round down (floor)?▼

Floor rounding always truncates towards negative infinity regardless of the following digits.

Is this calculator private?▼

Yes, all rounding operations execute locally in your web browser.

Quick Reference & Conversion Table

Original Value	Target Place	Deciding Digit	Rounded Result
12.345	Hundredth (0.01)	5	12.35
87.49	Whole Number (1)	4	87
14.992	Cent ($0.01)	2	14.99
1.789	Tenth (0.1)	8	1.8

⚠️ Common Pitfalls to Avoid

•Assuming banker's rounding always rounds up on .5 (it rounds to the nearest even number to reduce statistical bias).
•Truncating digits instead of checking the next place value.