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How this calculator works
The calculator first determines email subscribers by multiplying downloads by the email capture rate. Paying customers are then estimated by applying your paid conversion rate to the subscriber count. Gross revenue is calculated as paying customers multiplied by average order value, reflecting both one-time and recurring product sales driven by the lead magnet. Net profit subtracts the combined costs: production cost (one-time) plus 12 months of ongoing promotion spend. The ROI percentage compares net profit against total cost over the 12-month evaluation window.
Useful scenarios
- A creator offering a free 'Content Calendar Template' that gets 800 downloads/month, captures 25% to email, and converts 4% of subscribers to a $150 course.
- A solo business owner with a financial checklist that costs $300 to produce plus $150/month in ads — 1,200 downloads, 30% email rate, 3% conversion at $200 AOV.
- A freelancer writing a free 'Pricing Guide' ebook — 500 downloads/month, 40% email capture, 6% paid conversion on a $97 consulting package.
FAQ
What is a good email capture rate for lead magnets?
Industry average is 20–30%. A highly specific lead magnet aimed at a narrow problem typically converts higher (35–50%). A broad lead magnet aimed at a general audience may convert 10–20%.
How long should I track a lead magnet's ROI?
This calculator uses a 12-month timeframe. Some lead magnets keep generating subscribers for years with minimal ongoing promotion. If your magnet is evergreen, the long-term ROI can be much higher than year 1 shows.
What's a realistic paid conversion from email subscribers?
For most creator businesses: 1–5% for low-ticket products ($20–100), 0.5–2% for mid-ticket ($100–500), and 0.1–0.5% for high-ticket ($500+). This depends heavily on list quality, email frequency, and product relevance.