Always round numbers up to the next value (ceiling function)
This calculator always rounds UP - even if the next digit is less than 5
Rounding up means always moving to the next higher value
Also known as the ceiling function in mathematics
Standard Rounding: 12.3 → 12 (rounds down because 3 < 5)
Rounding Up: 12.3 → 13 (always rounds up, ignores the 5 rule)
| Original Number | Decimal Places | Rounded Up Result |
|---|---|---|
| 12.1 | Whole number | 13 |
| 45.678 | 1 decimal place | 45.7 |
| 3.141 | 2 decimal places | 3.15 |
| 99.001 | Whole number | 100 |
| 7.231 | 1 decimal place | 7.3 |
| 0.0001 | Whole number | 1 |
Rounding up is essential in situations where you need to ensure you have enough of something, or when underestimating would cause problems. It's a conservative approach that prevents shortfalls.
Materials & Supplies
Need 12.3 boxes of tiles? Buy 13 boxes (can't order partial boxes)
Transportation
Need to transport 45.2 tons? Rent capacity for 46 tons
Packaging
143 items fit in boxes of 12? Need 12 boxes (143 ÷ 12 = 11.92 → 12)
Attendance & Seating
Expecting 87.5 guests? Prepare seats for 88 people
Pricing (Customer-Favorable)
Charge per hour: 2.1 hours of work → Bill for 3 hours
Construction & Measurements
Need 15.1 feet of lumber? Buy 16 feet (better to have extra)