SEO ROI Calculator
Estimate the potential return on investment from your SEO campaign. Adjust the inputs to see how organic traffic translates to revenue.
Your Inputs
Projected Results
These projections are estimates based on your inputs. Actual results may vary based on industry, competition, and strategy execution.
How to Use This Calculator
Enter four numbers and get an instant estimate of your SEO return. Here's what each input means and how to find the right figures for your business.
Expected Monthly Organic Traffic
This is the number of visitors you expect to arrive via organic search each month. If you're starting SEO from scratch, use your SEO provider's traffic projection. For existing sites, check Google Search Console for your current organic sessions.
Conversion Rate
The percentage of visitors who take a desired action — enquiry, purchase, or sign-up. Most Australian B2B sites convert at 1–3%; e-commerce typically sits between 1–4%. If you're unsure, start with 2% as a conservative baseline.
Average Order Value
The average revenue you receive per conversion. For service businesses, this is the average contract or project value. For e-commerce, use your average transaction value from your analytics or payment platform.
Monthly SEO Investment
Your total monthly spend on SEO — including agency fees, content production, and tool costs. This figure is used to calculate your ROI percentage and annual revenue multiple against total spend.
SEO ROI Benchmarks by Industry
These benchmarks reflect average SEO performance across Australian industries based on Ahrefs, BrightEdge, and Search Engine Journal data. Use them to calibrate your calculator inputs.
E-Commerce
Professional Services
Local Services
SaaS / Software
What Influences Your SEO ROI
SEO return on investment is shaped by dozens of variables. Understanding these factors helps you set realistic expectations and identify where to invest for the highest return.
Traffic Quality
Conversion Factors
SEO Strategy
Business Variables
SEO vs Other Marketing Channels
Understanding how SEO compares to paid and social channels helps you allocate budget for the best long-term return.
SEO
- Compounds over time — traffic grows without proportional cost increases
- 14.6% close rate vs 1.7% for outbound leads
- Traffic continues even if you pause investment short-term
- Ideal for 12+ month horizon planning
Google Ads (PPC)
- Immediate traffic — results from day one
- Traffic stops the moment budget runs out
- Average CPC in Australia ranges from $2–$15+ depending on industry
- Best for short-term campaigns and high-intent keywords
Social Media Ads
- Strong for awareness and retargeting — weaker for direct conversion
- Audience targeting capabilities are unmatched
- Rising CPMs reduce efficiency over time
- Best combined with strong SEO and landing page strategy
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