.seo-calculator-wrapper {
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
max-width: 800px;
margin: 0 auto;
padding: 20px;
background: #fff;
border: 1px solid #e0e0e0;
border-radius: 8px;
box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}
.seo-calc-header {
text-align: center;
margin-bottom: 30px;
}
.seo-calc-header h2 {
color: #2c3e50;
margin: 0 0 10px 0;
}
.seo-calc-grid {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 20px;
}
@media (max-width: 600px) {
.seo-calc-grid {
grid-template-columns: 1fr;
}
}
.seo-input-group {
margin-bottom: 15px;
}
.seo-input-group label {
display: block;
margin-bottom: 5px;
font-weight: 600;
color: #4a5568;
font-size: 14px;
}
.seo-input-group input {
width: 100%;
padding: 10px;
border: 1px solid #cbd5e0;
border-radius: 4px;
font-size: 16px;
box-sizing: border-box; /* Fix padding issue */
}
.seo-input-group input:focus {
outline: none;
border-color: #4299e1;
box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.2);
}
.seo-btn-container {
text-align: center;
margin-top: 20px;
grid-column: 1 / -1;
}
.calculate-btn {
background-color: #48bb78;
color: white;
border: none;
padding: 12px 30px;
font-size: 18px;
font-weight: bold;
border-radius: 5px;
cursor: pointer;
transition: background-color 0.2s;
}
.calculate-btn:hover {
background-color: #38a169;
}
.seo-results-box {
margin-top: 30px;
padding: 20px;
background-color: #f7fafc;
border-radius: 6px;
border-left: 5px solid #4299e1;
display: none; /* Hidden by default */
}
.result-row {
display: flex;
justify-content: space-between;
margin-bottom: 10px;
font-size: 16px;
}
.result-row.final {
border-top: 1px solid #cbd5e0;
padding-top: 10px;
margin-top: 10px;
font-weight: bold;
font-size: 20px;
color: #2d3748;
}
.roi-positive {
color: #276749;
}
.roi-negative {
color: #c53030;
}
.seo-article {
margin-top: 50px;
line-height: 1.6;
color: #333;
}
.seo-article h2 {
color: #2c3e50;
border-bottom: 2px solid #eee;
padding-bottom: 10px;
}
.seo-article h3 {
color: #2d3748;
margin-top: 25px;
}
.seo-article ul {
background: #f8f9fa;
padding: 20px 40px;
border-radius: 5px;
}
function calculateSeoRoi() {
// Get inputs
var currentTraffic = parseFloat(document.getElementById('currentTraffic').value);
var trafficGrowth = parseFloat(document.getElementById('trafficGrowth').value);
var conversionRate = parseFloat(document.getElementById('conversionRate').value);
var closeRate = parseFloat(document.getElementById('closeRate').value);
var customerLtv = parseFloat(document.getElementById('customerLtv').value);
var seoCost = parseFloat(document.getElementById('seoCost').value);
// Validation
if (isNaN(currentTraffic) || isNaN(trafficGrowth) || isNaN(conversionRate) ||
isNaN(closeRate) || isNaN(customerLtv) || isNaN(seoCost)) {
alert("Please fill in all fields with valid numbers.");
return;
}
if (seoCost === 0) {
alert("SEO Cost cannot be zero for ROI calculation.");
return;
}
// Calculations
// 1. New Traffic Volume based on growth percentage
var projectedTraffic = currentTraffic * (1 + (trafficGrowth / 100));
// 2. The DIFFERENCE is what the SEO campaign is generating (Attribution)
var additionalTraffic = projectedTraffic – currentTraffic;
// 3. Leads from additional traffic
var additionalLeads = additionalTraffic * (conversionRate / 100);
// 4. Sales from those leads
var additionalSales = additionalLeads * (closeRate / 100);
// 5. Revenue from those sales
var additionalRevenue = additionalSales * customerLtv;
// 6. Net Profit
var netProfit = additionalRevenue – seoCost;
// 7. ROI Formula: (Net Profit / Cost) * 100
var roi = (netProfit / seoCost) * 100;
// Display Results
document.getElementById('seoResults').style.display = 'block';
document.getElementById('resProjectedTraffic').innerText = Math.round(projectedTraffic).toLocaleString();
document.getElementById('resLeads').innerText = additionalLeads.toFixed(1);
document.getElementById('resSales').innerText = additionalSales.toFixed(1);
document.getElementById('resRevenue').innerText = '$' + additionalRevenue.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
var profitEl = document.getElementById('resProfit');
profitEl.innerText = '$' + netProfit.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
profitEl.className = netProfit >= 0 ? 'roi-positive' : 'roi-negative';
var roiEl = document.getElementById('resRoi');
roiEl.innerText = roi.toFixed(2) + '%';
roiEl.className = roi >= 0 ? 'roi-positive' : 'roi-negative';
}
SEO ROI Calculator
Estimate the potential Return on Investment for your Search Engine Optimization campaigns.
Projected Monthly Traffic:
0
Additional Leads Generated:
0
Additional New Sales:
0
Projected Additional Revenue:
$0.00
Net Profit (Revenue – Cost):
$0.00
SEO ROI:
0%
Understanding SEO Return on Investment (ROI)
Calculating the ROI of your SEO efforts is crucial for justifying marketing budgets and understanding the long-term value of organic search traffic. Unlike paid advertising (PPC), where costs stop the moment you stop paying, SEO is an investment in your website's digital asset value.
How This Calculator Works
This calculator projects the potential financial return of an SEO campaign based on traffic growth and your business's sales funnel metrics. Here is a breakdown of the inputs required:
- Current Monthly Organic Traffic: The number of visitors currently landing on your site via search engines.
- Projected Traffic Growth: The target percentage increase you expect from your SEO campaign (e.g., 20% growth year-over-year).
- Conversion Rate: The percentage of website visitors who take a desired action (like filling out a form or calling).
- Close Rate: The percentage of those leads that actually become paying customers.
- Customer Lifetime Value (LTV): The total revenue you expect from a single customer over the entirety of your relationship.
The Logic Behind the Calculation
To determine the true value of an SEO campaign, we focus on the incremental value generated. We calculate the additional traffic generated by the growth factor, determine how many new customers that traffic yields, and multiply by the customer value. Finally, we subtract the agency or campaign costs to find the net profit.
The Formula:
ROI = ((Additional Revenue – SEO Cost) / SEO Cost) * 100
What is a "Good" SEO ROI?
While benchmarks vary by industry, a ratio of 5:1 (500%) is often considered exceptional for SEO, while 2:1 (200%) is a healthy break-even point in the early stages. Remember that SEO has a compounding effect; the content and authority you build today will continue to drive revenue for years, often increasing your ROI significantly over time.