Rounding Calculator

Rounding is a method of adjusting values at specific digits to express numbers in a simpler form. If 5 or above, round up; if below 5, round down. For example, rounding 3.14159 to two decimal places gives 3.14. It's an essential mathematical operation in all fields including daily life, science, and finance.

Ceiling always rounds up at the specified digit. For example, ceiling 3.14 to an integer gives 4. Conversely, floor always rounds down. Flooring 3.99 to an integer gives 3. Useful when exact units are needed, such as in inventory management or capacity calculations.

Properly adjusting decimal places allows clearer data representation. Finance typically requires two decimal places, while scientific calculations may need more. This calculator lets you freely choose from 0 to 10 places, making it suitable for various purposes.

Truncation simply removes digits below the specified place without rounding. Truncating 3.99 gives 3, and truncating -3.99 gives -3. Used when decimals must be unconditionally discarded according to tax calculations or specific regulations. Creates different results from rounding, so choose according to the situation.

Rounding is very important in financial transactions. Monetary units are usually expressed to only two decimal places, so proper rounding is needed when calculating interest or exchange rates. Incorrect rounding can create significant differences with large amounts, making accurate calculation tools essential.

This calculator shows rounding, ceiling, floor, and truncation results simultaneously. The same number produces different results depending on the method, so you can clearly understand the differences between each method and choose the appropriate one for your situation. Very useful for educational purposes as well.