SEO ROI Calculator
SEO ROI Calculator
Formulas
Conversions = Monthly traffic × Conversion rate ÷ 100 SEO value = Conversions × Customer value ROI % = (SEO value − Monthly SEO cost) ÷ Monthly SEO cost × 100 Months to recover = Monthly SEO cost ÷ (SEO value − Monthly SEO cost) when net profit is positive
Results
SEO value
$15,000.00
ROI
+1,400%
Months to recover
0.07 months
Estimated 100 conversions per month · Monthly net profit $14,000.00
How to use
- Enter monthly organic traffic, conversion rate (%), average customer value, and monthly SEO cost.
- Review monthly SEO value, ROI %, and months to recover in the results.
- Use sample data or copy results to compare SEO scenarios with your team.
FAQ
How is SEO value calculated?
Monthly conversions = Monthly traffic × Conversion rate ÷ 100. SEO value = Monthly conversions × Customer value. This is the estimated monthly revenue from organic traffic.
How is ROI calculated?
ROI % = (SEO value − Monthly SEO cost) ÷ Monthly SEO cost × 100. It measures net monthly return on your SEO spend.
What does months to recover mean?
Months to recover = Monthly SEO cost ÷ (SEO value − Monthly SEO cost) when net monthly profit is positive. It estimates how many months of net SEO profit repay one month of SEO cost.
What is customer value?
Customer value is the average revenue or lifetime value per conversion from organic traffic — use AOV for ecommerce or average lead value for lead-gen.
Does this include paid ads or other channels?
No. This calculator models organic (SEO) traffic only. Paid search, email, and other channels are not included.
Is my data uploaded?
No. All calculations run locally in your browser.
Introduction
An SEO ROI calculator helps you estimate whether organic search traffic generates enough revenue to justify your SEO program.
Enter monthly traffic, conversion rate, customer value, and monthly SEO cost. The tool computes SEO value, ROI %, and months to recover using standard organic funnel math.
Formulas
Monthly conversions = Monthly traffic × Conversion rate ÷ 100
SEO value = Monthly conversions × Customer value
ROI % = (SEO value − Monthly SEO cost) ÷ Monthly SEO cost × 100
Months to recover = Monthly SEO cost ÷ (SEO value − Monthly SEO cost)
Months to recover is shown only when SEO value exceeds monthly SEO cost (positive net monthly profit).
SEO terms explained
Read each formula label below in plain language before you enter numbers.
Input terms
| Term | Meaning |
|---|---|
| Monthly traffic | Estimated organic visits from search engines per month — sessions or users landing from SEO, not paid ads. |
| Conversion rate (%) | Share of organic visits that complete a goal (purchase, signup, lead). Example: 2% means about 2 conversions per 100 visits. |
| Customer value | Average revenue per conversion from organic traffic — use AOV for ecommerce or average lead/sale value for lead-gen. |
| Monthly SEO cost | Total monthly spend on SEO: agency fees, tools, content, link building, and in-house labor allocated to SEO. ROI and payback are measured against this. |
Derived metrics (in formulas)
| Term | Formula | Meaning |
|---|---|---|
| Monthly conversions | Monthly traffic × Conversion rate ÷ 100 | Estimated goals completed per month from organic visits. |
| Monthly net profit | SEO value − Monthly SEO cost | Dollars left each month after SEO spend, before product COGS, refunds, or overhead. Used for payback. |
Output terms
| Term | Formula | Meaning |
|---|---|---|
| SEO value | Monthly conversions × Customer value | Estimated monthly revenue attributed to organic search at your assumed rate and value. |
| ROI % | (SEO value − Monthly SEO cost) ÷ Monthly SEO cost × 100 | Net monthly return on SEO spend. +100% ROI means $2 SEO value for every $1 spent on SEO. |
| Months to recover | Monthly SEO cost ÷ (SEO value − Monthly SEO cost) | Months of net monthly SEO profit needed to repay one month of SEO cost. Shown only when net profit is positive. |
When to use this tool
- Forecast ROI before increasing SEO budget or headcount
- Compare conversion rate or traffic scenarios for organic search
- Explain SEO economics to stakeholders with simple numbers
- Sanity-check whether current organic metrics justify SEO spend
Limitations
This is a simplified model. It assumes steady monthly traffic and conversion rate, ignores seasonality, attribution, multi-touch journeys, and post-conversion costs (COGS, refunds). Use analytics and margin analysis for production decisions.