Rounding Calculator
Round numbers up, down, or to the nearest value at any decimal place
Enter a number to round to the nearest multiple (e.g., 10 for nearest 10th, 100 for nearest 100th)
Result
Original: 0
Rounded: 0
Details
Method: Round
Decimal Places: 2
How It Works
Pick how many decimal places you want, then choose your rounding method: Round goes to the nearest value (3.5 becomes 4), Floor always rounds down (3.7 becomes 3), and Ceiling always rounds up (3.2 becomes 4).
Use 2 decimal places for money, 0 for whole numbers, and whatever precision you need for science or engineering work.
FAQ
What's the difference between Round, Floor, and Ceiling?
Round picks the nearest value (3.7 → 4, 3.2 → 3). Floor always goes down (3.7 → 3). Ceiling always goes up (3.2 → 4).
How many decimal places should I use?
Money = 2 decimal places ($5.99). Whole numbers = 0. Science and engineering = whatever precision you need (usually 3-6).
What does rounding to 0 decimal places do?
It rounds to the nearest whole number. So 3.7 becomes 4, and 3.2 becomes 3.