open rate calculator

Just here for the free resources?

Get Your Blog Monetization resource pack now

Media kits, rate cards, spec sheets, pricing guidelines, expert tips, sales contracts, and more 🍻

Our open rate calculator is super simple – all you need to do is enter the number of people which opened your email, and the number of people who you sent the email too. We’ll then tell you the open rate.

How do you know how many people opened your email? If you are using any of the well-known email platforms, you’ll get data in your user dashboard showing you the number of people who opened it. Sometimes you’ll even see who opened each email.

open rate calculator

Platforms such as CampaignMonitor (seen above), ActiveCampaign, Mailjet, Aweber, and MailChimp all provide open rate data within the platforms, so you don’t really need to use the open rate calculator below.

But if you do need to calculate it manually, keep reading below:

Open Rate Calculator:

Use our open rate calculator below to determine your newsletters open rate. Simply enter the number of people that opened it, and the number of people you sent it to, and our calculator will show you the open rate. Easy as!

What is the Open Rate Formula?

The open rate formula is simply (total unique opens ÷ total recipients) x 100

What you are doing is dividing the number of email opens, by the number of people you sent the email to. Once this is done, to get the percentage, you simply multiply by 100.

For example, if you sent 100 emails to 100 recipients (total recipients), and you see that 43 of these people actually opened the email, then the equation for open rate is (43 ÷ 100) * 100. In this example, the open rate is 43%.

What does Open Rate actually mean?

The open rate is simply the percentage of people who received the email, which actually opened the email.

Please keep in mind that the open rate doesn’t tell you whether somebody spent 1 second looking at the email, or 10 minutes. It also doesn’t tell you if they actually read the email. It simply states the percentage of people who opened the email.

Why is The Open Rate Important?

Let’s look at an extreme scenario – an open rate of 0%.

This means that no matter how many people you send an email campaign too, not a single person opens it. You would be just as well off doing nothing, since no one is seeing your message anyway.

Lets assume you have an email list of 10,000 people. You spend years gathering these email addresses through competitions and lead magnets. You spend hundreds per year on tools like ActiveCampaign to send your emails. All 10,000 people are potentially interested in your product. After all, they gave you their email address and signed up to hear from you.

How dissapointing would it be to send an announcement or offer to these people and have no one see it.

Well that’s what will happen with a 0% open rate. Not a single person will open the email.

But, if the open rate was 20%, then you would have 2,000 people read your message. Great!

How about if the open rate was 40%? Then you would have 4,000 people read your email. Even better!

Since it can be hard to grow your database, it pays to keep trying to optimize your open rate. Test email frequencies, send times, send days, and subject lines. Eventually you’ll see (through trial and error), the best mix to get the best open rate.

Other Calculators:

  • Open Rate Calculator
    Our open rate calculator is super simple – all you need to do is enter the number of people which opened your email, and the number of people […]
  • CPV Calculator
    Cost Per View (CPV) is most often used in relation to any sort of video ad, whether it be on Youtube, Facebook, or any other platform. It is […]
  • CPI Calculator
    Cost per install is a metric that has been around for years. It’s used to measure the cost of an ad campaign in which advertisers pay each time […]
  • eCPM Calculator
    An eCPM calculator reveals one of the most important, and interesting, metrics a website owner needs to look at. I’ll do my best on this page to explain […]
  • CPA Calculator
    CPA (cost per acquisition) is the dollar price that an advertiser pays to acquire a customer. It is one of the most important metrics for any digital marketer. […]
  • CPC Calculator
    Cost per click is the amount of money charged by an advertising website for every visitor directed to a banner ad, or sponsored link. It can range from […]
  • Conversion Rate Calculator
    You conversion rate can be calculated in a number of different ways. In it’s most simplest form, a websites conversion rate is the number of online sales as […]
  • CTR Calculator
    The click through rate (CTR) is one of the most basic, and most frequently used, metrics in the online advertising industry. CTR is used to gauge the attractiveness […]

You don't actually need a crap-tonne of traffic to make a living blogging

Request our free resources below, and learn to monetize your blog the way the experts do 🍻

14+ Modules

Our training modules cover all the main monetization methods

10 Activites

Complete our activities and you'll be lightyears ahead of the competition.

11 Resources

Worksheets, calculators, and templates are included to save you months of trial & error.


10,000+ subscribers already enjoy the latest blogger income reports from around the web, delivered to their inbox fortnightly.