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Sales Tax States, to calculate sales tax of US States, city and zip code.

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Rounding numbers calculator

Rounded of decimal and integer

Enter a number including decimals that you want to round to the tenth, hundredth, thousandth or simply a long number that you want to round to the tens, hundreds or other


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What is rounding?

The purpose of the rounding is to find a simplified number of a complex number or difficult to manipulate. The simplification offered by the rounding makes it possible to better illustrate and calculate mentally larger or decimals numbers.

How to round a number

Round a whole number

In order to round a whole number you need to check the location of the number corresponding to the desired rounding in the number to be rounded.

Example

We use the number 53 643 that we want to round to the hundred.

  1. Where are we going to round to the hundred? This position is 3 digits before the decimal point.
  2. We must therefore take the 3rd digit of 53 643 which is 6.
  3. According to the figure that is following (in our case the ten, or 53 643) we must validate if the latter is less than 5 (0,1,3 or 4) or is equal to or greater than 5 (5,6,7,8 or 9).
  4. If the number is lower, then the number remains the same, if not, it must be increased by 1. In our case, the number 4 is less, the rounding is therefore 53 600.

Round a decimal

To round off a decimal number, check the position of the number corresponding to the desired rounding in the decimal number to be rounded.

Example

We use the number 6.592 that we want to round to the tenth.

  1. Where are we going to round to the tenth? This position is 1 digit before the decimal point.
  2. We must therefore take the first digit after the comma of 6,592 which is 5.
  3. According to the figure that is following (in our case the hundredth, so 6,592) we must validate if it is less than 5 (0,1,3 or 4) or is equal to or greater than 5 (5,6,7,8 or 9)
  4. If the number is lower, then the number remains the same, if not, it must be increased by 1. In our case, the number 9 is higher, so the rounding is 6.6

Rounded table of number

Name of the roundingCorresponding numberNumber before (+), after (-1) the comma
Million1 000 0007
Hundred thousand100 0006
Ten thousand10 0005
Thousand1 0004
Hundred1003
Ten102
Unit11
Tenth0,1-1
Hundredth 0,01-2
Thousandth0,001-3
Ten thousandth0,0001-4
Hundred thousandth0,00001-5
Millionth0,000001-6

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