The email Click-Through Rate (CTR) is one of the most vital metrics for measuring the success of an email marketing campaign. It tells you what percentage of your recipients found your content compelling enough to take action.
The Email CTR Formula
Calculating your click rate is straightforward. You divide the number of people who clicked on a link in your email by the number of emails successfully delivered, then multiply by 100.
CTR = (Total Clicks ÷ Total Emails Delivered) × 100
Example Calculation
Suppose you send out a newsletter to your subscriber list. Here are the numbers:
Total Sent: 10,500
Bounced: 500
Delivered: 10,000
Unique Clicks: 350
Using the formula: (350 / 10,000) × 100 = 3.5%. Your Click-Through Rate is 3.5%.
CTR vs. CTOR: What is the Difference?
While CTR measures clicks against total delivered emails, the Click-to-Open Rate (CTOR) measures clicks against only the people who actually opened the email. CTOR is often considered a better measure of how engaging your content is, while CTR measures the effectiveness of both the subject line and the content.
What is a Good Email Click Rate?
Average click rates vary significantly by industry, but here are general benchmarks to help you gauge your performance:
Performance Level
CTR Range
Above Average
4.0% – 6.0%+
Average
2.0% – 3.5%
Below Average
Under 1.5%
Tips to Improve Your Click Rate
Personalize Content: Use segmenting to ensure the right people get the right offers.
Single Clear CTA: Multiple competing buttons can confuse readers. Stick to one primary Call to Action.
Optimize for Mobile: Over 50% of emails are opened on mobile devices. Ensure your buttons are easy to tap.
Urgency and Scarcity: Use words like "Limited Time" or "Only 2 Left" to encourage immediate action.
function calculateEmailCTR() {
var clicks = document.getElementById("totalClicks").value;
var delivered = document.getElementById("emailsDelivered").value;
var resultBox = document.getElementById("ctrResultBox");
var valueDisplay = document.getElementById("ctrValueDisplay");
var interpretation = document.getElementById("ctrInterpretation");
// Reset result box
resultBox.style.display = "none";
resultBox.className = "ctr-result-box";
// Validate inputs
if (clicks === "" || delivered === "" || clicks < 0 || delivered deliveredNum) {
resultBox.style.display = "block";
resultBox.className += " ctr-error";
valueDisplay.innerHTML = "Warning";
interpretation.innerHTML = "Total clicks usually shouldn't exceed total delivered emails. Please check your numbers.";
return;
}
// Calculate CTR
var ctr = (clicksNum / deliveredNum) * 100;
var formattedCTR = ctr.toFixed(2);
// Display Results
resultBox.style.display = "block";
resultBox.className += " ctr-success";
valueDisplay.innerHTML = formattedCTR + "%";
// Add contextual feedback
if (ctr >= 4) {
interpretation.innerHTML = "Excellent! Your click rate is well above industry averages.";
} else if (ctr >= 2) {
interpretation.innerHTML = "Good. This is a solid, healthy average click-through rate.";
} else {
interpretation.innerHTML = "Below average. Consider testing your CTA placement or content relevance.";
}
}