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Rounding Calculator — result sheet
Round a number to decimal places with explicit half-up, half-even, floor, ceiling, or toward-zero rules.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: Scale by 10^places, apply the selected tie rule, then scale back.
The tie rule is displayed because ordinary half-up and statistical half-even rounding can disagree on exact half values.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Value — minimum -1000000000000000; maximum 1000000000000000
- Decimal places — Negative values round to tens, hundreds, and so on.; minimum -6; maximum 12
- Rounding mode — 5 choices
Worked example
| Input | Value |
|---|---|
| Value | 12.345 |
| Decimal places | 2 |
| Rounding mode | half-up |
12.35.
Assumptions and limits
- Decimal-place rounding is used rather than significant-figure rounding.
- Very large or very small binary floating-point values can have representation limits.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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