Decimal Places Calculator
Round any number to a fixed number of digits after the decimal point.
12.3456 rounded to 2 decimal places is 12.35.
Decimal Places Calculator
Use this decimal places calculator to round any number to a fixed number of digits after the decimal point. Enter your number, choose how many decimal places you want, and get the rounded result instantly.
This tool is useful for rounding decimals in math, science, finance, measurements, and everyday calculations.
How to Use the Decimal Places Calculator?
Enter your number
Type any whole number or decimal number.
Choose decimal places
Select how many digits you want after the decimal point.
Click calculate
The calculator rounds the number using standard rounding rules.
View the result
You will see the rounded number with the selected number of decimal places.
What Are Decimal Places?
Decimal places are the digits that appear after the decimal point.
Example:
In 12.3456, the decimal places are 3, 4, 5, and 6.
If a number has 2 decimal places, it keeps two digits after the decimal point.
Example:
12.3456 rounded to 2 decimal places is 12.35.
Example of Rounding to Decimal Places
Number: 48.7563
Decimal places: 2
Result: 48.76
Number: 9.994
Decimal places: 1
Result: 10.0
Number: 0.45678
Decimal places: 3
Result: 0.457
Decimal Place Value Chart
Tenths
First digit after the decimal point
Hundredths
Second digit after the decimal point
Thousandths
Third digit after the decimal point
Ten thousandths
Fourth digit after the decimal point
Example:
In 23.4567
4 is in the tenths place
5 is in the hundredths place
6 is in the thousandths place
7 is in the ten thousandths place
Rounding Rules for Decimal Places
If the next digit is less than 5, keep the last selected digit the same.
Example:
12.342 rounded to 2 decimal places is 12.34.
If the next digit is 5 or greater, increase the last selected digit by 1.
Example:
12.346 rounded to 2 decimal places is 12.35.
Remove extra digits after rounding.
How to Round to Decimal Places?
Step 1: Choose how many decimal places you need
Example: 2 decimal places
Step 2: Find that decimal place
In 14.786, the second decimal place is 8.
Step 3: Look at the next digit
The next digit is 6.
Step 4: Round up or keep the same
Since 6 is greater than 5, 8 rounds up to 9.
Final answer:
14.786 rounded to 2 decimal places is 14.79.
Decimal Places vs Significant Figures
Decimal places count digits after the decimal point.
Significant figures count meaningful digits in the whole number.
Example:
Number: 123.456
2 decimal places = 123.46
2 significant figures = 120
These are different rounding methods. Use decimal places when you need a fixed number of digits after the decimal point.
When to Use Decimal Places?
Use decimal places when you need a fixed level of precision after the decimal point.
Common uses include:
Money values
Measurement results
Math answers
Scientific data
Percentages
Grades and scores
Example:
Money is usually rounded to 2 decimal places.
Common Mistakes
Confusing decimal places with significant figures
Decimal places only count digits after the decimal point.
Forgetting to check the next digit
The next digit decides whether to round up or keep the same.
Dropping required zeros
2.5 rounded to 2 decimal places should be written as 2.50.
Rounding too early
Round only the final answer when working through longer calculations.
FAQs
Related Calculators
Rounding Calculator
Significant Figures Calculator
Scientific Notation Calculator
Standard Form Calculator