How the projection works
EPC (earnings per click) is the cleanest single number for comparing programs across different traffic sources — it normalises away CTR differences and lets you rank affiliate offers head-to-head.
Worked example
Your blog gets 20,000 monthly visitors. 3% click affiliate links, 5% of those buy at an $80 average order value, paying you 10% commission.
- Affiliate clicks = 20,000 × 3% = 600
- Sales = 600 × 5% = 30
- Revenue driven = 30 × $80 = $2,400
- Commission = $2,400 × 10% = $240/month
- EPC = $240 ÷ 600 = $0.40
FAQ
Should I include cookie window and refunds?
Both shrink real earnings vs the projection. Most affiliate programs use 24-hour to 90-day cookies, and refunds typically reduce paid commissions by 5–15%. Multiply the projected earnings by ~0.85–0.90 for a more realistic estimate.
What about recurring commissions?
For SaaS or subscription affiliate programs that pay recurring commissions, multiply monthly earnings by the average customer lifespan (in months). Use the LTV calculator for the lifespan input.
How do I increase EPC?
The biggest levers are: better-aligned offers (high commercial intent), trust-building content (reviews, comparisons), AOV-boosting tactics (bundles, upsells), and negotiating higher commissions for proven volume.