Rounding Calculator
Round decimal numbers to integers (Ceil, Floor, Round).
What are the rounding rules?
Rounding is the process of taking a long broken number (with many digits after the comma) and reducing it while keeping a very similar value. Our tool uses three standard programming and statistics methods:
1. Nearest Rounding (Round)
It is the method we learn in school. If the part that will be cut off is 5 or greater, it rounds the last digit up. If it is 4 or smaller, it leaves it as it is (e.g., 3.14 becomes 3.1, but 3.16 becomes 3.2).
2. Ceiling (Ceil - Always upwards)
It doesn't matter if the number is 3.01 or 3.99. If you ask to always round up (ceiling), both will become 4. Very commonly used in construction material calculations, where you cannot buy \"half a tile,\" being forced to round up to the next whole number.
3. Floor (Always downward)
It is the opposite of Ceil. It just cuts the numbers off without increasing anything. 3.99 will simply become 3.