function calculateEmailCTR() {
// 1. Get input values
var deliveredInput = document.getElementById('emailsDelivered').value;
var clicksInput = document.getElementById('totalClicks').value;
// 2. Parse values to numbers
var delivered = parseFloat(deliveredInput);
var clicks = parseFloat(clicksInput);
// 3. Get result container
var resultBox = document.getElementById('ctrResult');
var valueDisplay = document.getElementById('ctrValueDisplay');
var benchmarkDisplay = document.getElementById('ctrBenchmarkDisplay');
var ratioDisplay = document.getElementById('clickRatioDisplay');
// 4. Validation
if (isNaN(delivered) || isNaN(clicks)) {
alert("Please enter valid numbers for both fields.");
resultBox.style.display = "none";
return;
}
if (delivered delivered) {
alert("Total clicks cannot be higher than the number of delivered emails.");
resultBox.style.display = "none";
return;
}
// 5. Calculation Logic: (Clicks / Delivered) * 100
var ctrRaw = (clicks / delivered) * 100;
var ctrFormatted = ctrRaw.toFixed(2); // Round to 2 decimal places
// 6. Display Results
valueDisplay.innerHTML = ctrFormatted + "%";
resultBox.style.display = "block";
// Ratio text (1 in X)
var ratio = Math.round(delivered / clicks);
if (clicks === 0) {
ratioDisplay.innerHTML = "0";
} else {
ratioDisplay.innerHTML = "1 in every " + ratio;
}
// 7. Benchmark Logic (General Industry Standards)
// High > 2.5%, Average 1-2.5%, Low = 2.5) {
benchmarkDisplay.innerHTML = "Performance: Excellent";
benchmarkDisplay.classList.add("benchmark-good");
} else if (ctrRaw >= 1.0) {
benchmarkDisplay.innerHTML = "Performance: Average";
benchmarkDisplay.classList.add("benchmark-avg");
} else {
benchmarkDisplay.innerHTML = "Performance: Below Average";
benchmarkDisplay.classList.add("benchmark-poor");
}
}
Understanding Your Email Click-Through Rate (CTR)
The Email Click-Through Rate (CTR) is one of the most critical metrics in digital marketing. It measures the effectiveness of your email campaigns by calculating the percentage of recipients who clicked on at least one link contained in your email. Unlike the open rate, which simply tells you how many people viewed the email, the CTR indicates how many people were engaged enough to take action.
CTR (%) = (Total Clicks ÷ Number of Delivered Emails) × 100
Why is Email CTR Important?
Tracking your CTR provides direct insight into the quality of your content and the relevance of your offers. A high CTR suggests that your email copy, design, and call-to-action (CTA) are resonating with your audience. Conversely, a low CTR may indicate that while your subject line was good enough to get an open, the actual content failed to deliver on that promise.
How to Interpret Your Results
Using the calculator above, you can assess where your campaign stands. While benchmarks vary significantly by industry (e.g., e-commerce often has different standards than B2B services), here are general guidelines for interpretation:
Above 2.5%: Excellent. Your content is highly relevant and your CTA is compelling.
1.0% – 2.5%: Average. This is a standard performance for many industries. There is room for optimization.
Below 1.0%: Below Average. You may need to refine your segmentation, email copy, or offer value.
5 Ways to Improve Your Email CTR
Optimize Mobile Design: Ensure your emails look perfect on smartphones. If a button is too small to tap, your CTR will suffer.
Clear Call-to-Action (CTA): Use a single, prominent button rather than multiple conflicting links. Use action-oriented text like "Get Your Report" instead of "Click Here."
Segment Your Audience: Sending the same blast to everyone often leads to low engagement. Targeted emails relevant to specific user interests yield higher clicks.
A/B Test Content: Test different button colors, placement, and copy length to see what drives more engagement.
Improve Load Speed: If your email contains heavy images that load slowly, users may delete it before clicking. Keep images optimized.