Ceiling & Floor Calculator
Calculate ceil, floor, round, and truncate for any number. See all four rounding modes side by side.
How to Use the Ceiling & Floor Calculator
- Enter any real number.
- Click Calculate to see all rounding results.
- Compare ceil, floor, round, and truncate side by side.
快速参考
| 从 | 到 |
|---|---|
| 2.3 | ceil 3, floor 2 |
| −2.3 | ceil −2, floor −3 |
| 2.5 | ceil 3, round 3 |
| −2.7 | trunc −2, floor −3 |
| 5.0 | all → 5 |
使用场景
- •Determining page counts for pagination.
- •Computing discrete unit quantities in programming.
- •Understanding rounding modes in financial software.
公式
ceil(x) = smallest integer ≥ x. floor(x) = largest integer ≤ x. round(x) = nearest integer. trunc(x) = integer part.
常见问题
What is the difference between ceil and floor?
Ceil rounds up to the next integer; floor rounds down. ceil(2.3) = 3, floor(2.3) = 2.
What does trunc do?
Truncate removes the decimal part without rounding. trunc(−2.7) = −2, while floor(−2.7) = −3.
When are these used?
In programming, financial calculations, pagination, and discrete quantity computations.