Email Conversion Rate Calculator

How the figure is built

Email conversion rate can be measured against clicks or against emails delivered, and the two answer different questions.

Conversion on clicks = orders ÷ clicks, which measures the landing experience. Conversion on delivered = orders ÷ delivered, which measures the whole campaign.

Quoting one without saying which is the most common ambiguity in email reporting, and the figures differ by more than an order of magnitude.

A real example

24 orders from 300 clicks is an 8% click conversion. The same 24 orders from 11,820 delivered is a 0.20% campaign conversion.

Both are correct and they support different decisions. The 8% is comparable against the site's overall conversion rate, and email traffic converting at 8% against a 2.5% site average is the normal pattern, because these are people who already know the brand.

The 0.20% is what matters for planning: it says a send to this list produces roughly one order per 500 subscribers.

At $31.90 of contribution, that is $0.065 of contribution per subscriber per campaign.

The usual mistakes

Attribution windows vary and email platforms typically claim conversions for days after a click, including purchases the recipient would have made anyway.

Email also disproportionately reaches existing customers, so a high conversion rate reflects who is on the list rather than how good the campaign was.

Using the result

Report both figures with their denominators named. The click conversion diagnoses the landing experience; the delivered conversion sizes the channel.

Then compare email conversion against paid traffic conversion for the same landing pages. A large gap usually means the paid traffic is arriving with less intent, which is a targeting question rather than a page question.

Why email converts so much better than paid traffic

Everyone on the list opted in, most have bought before, and the message arrives in a personal space rather than interrupting something else. Those three facts explain nearly all of the difference.

The consequence is that email revenue is not really created by the campaign. It is harvested from a relationship built elsewhere. The campaign decides the timing and the offer.

That reframing matters when allocating credit. A business attributing 30% of revenue to email is usually attributing it to the acquisition and product work that put those people on the list, and treating email as the growth engine rather than the harvest leads to underinvestment in the thing actually producing the value.

Landing consistency matters more than most things measured here: an email promising a specific product and linking to a category page loses a large share of the intent it created.

Sending each link to the exact item mentioned is unglamorous and it reliably outperforms clever copy on a generic destination.

Discount codes applied automatically through the link, rather than typed at checkout, remove a step that loses a measurable share of otherwise-converting traffic.

Checking the mobile checkout specifically matters here, given that most email is opened on a phone and a desktop-optimised checkout loses much of what the campaign generated.