How to Round to Significant Figures in Excel

In this tutorial, you will learn how to round to significant figures in Excel.

After the decimal point, all the zeros to the right of the last non-zero digit are important. For instance, the number 0.0016300 has five significant digits. If the zeros to the right of the last non-zero digit are part of a measurement, they are all important.

Once you are ready, we can start by using real-life scenarios to help you understand how to round to significant figures in Excel.

Round to Significant Figures in Excel

Before we begin we will need a group of data to be used to round to significant figures in Excel.

Step 1

First, you need to have a clean and tidy group of data to work with.

Step 2

In this example, we want to round the numbers to significant figures. To do so, we will insert the following formula =ROUND(A2,B2-(1+INT(LOG10(ABS(A2))))).

Step 3

Once we are done, the formula rounds the numbers to significant figures.