Free rounding calculators for decimals, significant figures, and whole numbers. Round to nearest tenth, hundredth, or any place value. Fast and accurate.
Round numbers to thousands, hundreds, tens, ones, tenths, hundredths and thousandths. Online calculator for rounding numbers showing the steps. How to round numbers and decimals.
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. For example, if rounding the number 2.7 to the nearest integer, 2.7 would be rounded to 3. Rounding Methods There are various rounding definitions that can be used to round a number. The ...
Rounding a number to a given place value means replacing it with the nearest multiple of that place value. If the digit immediately to the right of the target place is 5 or greater, the digit in the target place increases by 1 (round up); if it is less than 5, the digit in the target place stays the same (round down). All digits to the right of the target place become zero.
Use our Rounding Calculator to round numbers to decimal places, significant figures, whole numbers, and place values with step-by-step explanations. See whether the number rounds up or down, identify the decision digit, view digit highlights, and compare the original and rounded values. Great for students, teachers, homework, test prep, and everyday math practice.
Rounding works the same way when they tell you to round to a certain named "place", such as "the hundredths place". The only difference is that you have to be a bit more careful in counting off the places you need. Just remember that the decimal places count off to the right in the same order as the counting numbers count off to the left.