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Rounding Calculator
Round numbers to given precision
How It Works
Rounding a number involves replacing the number with an approximation that results in a shorter, simpler, or more explicit representation based on specific rounding definitions.
Rounding a number involves replacing the number with an approximation of the number that results in a shorter, simpler, or more explicit representation of said number based on specific rounding definitions. There are various rounding definitions that can be used.
Round half up: Values that are halfway between the chosen rounding precision are rounded up. For negative numbers, 'up' can be thought of as towards the bigger or more positive value.
Round half down: Values halfway between the chosen rounding precision are rounded down towards the smaller or more negative value.
Round up (ceiling): Rounding up towards the nearest integer, also known as 'taking the ceiling'.
Round down (floor): Rounding down towards the nearest integer, also known as 'taking the floor'.
Round half to even: Half values are rounded to the nearest even integer. This tie-breaking rule has no biases based on positive or negative numbers.
Round half to odd: Half values are rounded to the nearest odd integer.
Rounding to fractions involves rounding a given value to the nearest multiple of the chosen fraction, which is particularly useful in engineering.
Results
Enter values to see results
Quick Tips
- • Results update automatically as you type
- • Use Tab to navigate between fields
- • Press Enter to calculate