Daily Traffic gives you an estimate of when you receive messages and when you send them during a given month. For example, in the graph below you can see how the peaks in my “Sent” curve indicates that I write emails in spurts.

Traffic Pattern lets you get a sense of your overall email activity over the past week.

Email Categories tells you how you are managing your Inbox. In the pie chart below, you can see that the majority of my emails are labeled. My Inbox is tiny compared to other labels which indicates that I keep a lean and mean Inbox.

Time Before First Response shows you how long it takes you to reply, and how long it takes others to reply to you. By looking at this chart, I can infer that I reply faster than others I communicate with.

Word Count tells you whether you are writing long emails. The example below shows that most of my emails are shorter than 200 words.

Thread Lengths help you understand whether you participate in long conversations resulting in long threads. Top Senders and Top Recipients help you identify who you communicate with more frequently.

How to Setup Gmail Meter

It is easy to set up Gmail Meter. First, go to Google Docs and open a Spreadsheet. Click on Tools > Script Gallery. Search for “Gmail Meter” and click Install. You will now see a new menu item called Gmail Meter on your spreadsheet. Click on Gmail Meter > Get a Report. You can then choose the type of report. Preparing a report may take some time and you will get an email once the report is ready. If you would like to know more about how this script works, be sure to check this tutorial.

Learning about my email habits has helped me become more email efficient. So, before you read that next article on "Writing Effective Emails," be sure to learn more about your own email habits using Gmail Meter.

Update 4/26/12: To clear up some confusion, Gmail Meter is not developed by Google.  Although we're highlighting it here, as with any third-party scripts, we can't guarantee security.