Free Online Calculators
CTR, conversion & EPC → monthly earnings, LTV for recurring
This calculator shows how much you can earn from affiliate marketing based on your traffic, click-through rate (CTR), conversion rate, and earnings per click (EPC). For recurring commission programs, it also estimates the lifetime value (LTV) of each referred customer. Enter your numbers and instantly see your projected monthly income.
Affiliate marketing math is deceptively simple on paper: send traffic, earn commissions. But the gap between "I have a blog" and "I earn $3,000/month" lives entirely in the numbers — specifically in how CTR, conversion rate, and commission stack multiply (or fail to multiply) together. The calculator above lets you model each variable independently, which matters because changing your CTR from 1% to 3% triples your income without a single new visitor.
Here are two concrete anchors. Scenario A — early-stage site: 15,000 monthly page views, a 2% CTR on affiliate links (300 clicks), a 2% conversion rate (6 sales), and an average commission of $40. That's $240/month gross — not life-changing, but real money from a modest content site. EPC (earnings per click) lands at $0.80, which is the benchmark most networks use to evaluate offer quality.
Scenario B — scaling site: Push that to 80,000 monthly views, raise CTR to 3.5% through better link placement and contextual callouts (2,800 clicks), hold the same 2% conversion rate (56 sales), same $40 commission. Monthly earnings jump to $2,240 — a 9× income increase from roughly a 5× traffic increase. The compounding effect of CTR optimization is why experienced affiliates obsess over it before chasing raw traffic. Add a recurring SaaS product paying $18/month per referral at just 20 active subscribers, and that number climbs past $2,600/month.
EPC stands for earnings per click, and it's the universal language of affiliate marketing. Every major network — Awin, ClickBank, Digistore24 — displays EPC on their offer pages because it strips away differences in traffic volume and lets you compare two offers directly. A $200 commission with a 0.3% conversion rate gives you an EPC of $0.60. A $30 commission with a 3% conversion rate gives you $0.90 EPC. The lower-ticket offer wins on every click you send.
The formula is straightforward: EPC = (Total Commissions Earned) ÷ (Total Clicks Sent). Networks typically show a 7-day and 30-day rolling EPC, so a spike from a single promotional email can inflate the number significantly. When evaluating an offer on ClickBank or Awin, look at 30-day EPC for a more stable signal. As of 2026, most mid-tier niches (personal finance, SaaS tools, health supplements) cluster between $0.50 and $2.00 EPC — anything above $3.00 usually involves high-ticket products or exceptional pre-sell content.
For recurring commission models, the calculator also outputs lifetime value (LTV) per referral. If ConvertKit's affiliate program pays 30% recurring and the average subscriber stays 14 months at $29/month, a single referral generates roughly $121.80 LTV. That changes your paid traffic math completely — you can afford a $40 cost-per-click acquisition if lifetime value is $120.
The most common error is using network-reported EPC as a personal income forecast. Network EPC is an average across all affiliates — including seasoned email marketers with 100,000-subscriber lists. A new content site sending cold organic traffic will convert at a fraction of that rate. Treating the listed EPC as your expected EPC inflates projected income by 3–5× and leads to wasted content investment on low-converting offers.
The second mistake is ignoring cookie duration in the conversion rate input. A 24-hour cookie (standard on Amazon Associates) means any buyer who returns to purchase two days later earns you nothing. Amazon's 24-hour window, unchanged since 2017, has quietly destroyed ROI for product review sites that model off longer 30–90 day cookie windows used by most other programs. If your traffic is review-based and purchase intent takes 3–5 days to convert, Amazon's cookie window cuts your effective conversion rate by 40–60% compared to what you'd see with a 30-day cookie.
The third mistake — especially for newer affiliates — is forgetting that some networks pay net-60 or net-90. Digistore24 pays weekly, but many traditional affiliate networks pay 60–90 days after the month of earning. Your cash flow model needs to reflect that you'll wait up to three months to collect commissions earned today. Marketers who build monthly budgets around projected affiliate income and don't account for payment lag regularly run into real liquidity problems in months two and three.
It works — under specific conditions. Content-driven affiliate income held up well through Q4 2025's algorithm turbulence for sites with genuine topical authority and first-person product experience. Sites built around thin "best X for Y" roundups without real testing data saw 40–70% traffic drops in the 2024 Google Helpful Content updates and haven't recovered. The business model isn't broken; the shortcut version of it is.
The clearest path in 2026 runs through email and audience ownership. Authority Hacker's internal data on their affiliate program clients consistently shows that email-referred clicks convert at 2–4× the rate of cold organic traffic. Building a list through a lead magnet — even something as simple as a comparison guide — transforms one-time visitors into repeat buyers across multiple product promotions. That's where the EPC numbers start looking like the ones network leaderboards advertise.
High-ticket and SaaS recurring programs are structurally superior to one-time physical products for anyone doing the math seriously. A single $500 software commission or a recurring 30% SaaS payout changes the clicks-needed-for-$1,000/month equation dramatically — which is exactly the output the calculator above shows you when you toggle between one-time and recurring models.
For content sites sending organic traffic, an EPC of $0.50–$1.50 is typical across most niches. Email-driven campaigns often achieve $2.00–$5.00+ EPC because the audience is warm and pre-qualified. Anything below $0.30 EPC usually signals a mismatch between your audience and the offer, or a conversion funnel problem on the merchant's side worth investigating before sending more traffic.
Industry benchmarks put affiliate click-to-sale conversion between 0.5% and 3% for most content-driven sites. Cold search traffic converts at the low end; email lists and comparison-page traffic at the high end. Use 1% as a conservative baseline when modeling new offers, and adjust upward only once you have 200+ clicks of actual data from your own traffic.
Recurring commissions compress the time needed to reach income targets because each referral keeps paying monthly. A SaaS product paying $20/month recurring means 50 active referrals generates $1,000/month indefinitely — versus needing 25 new sales every single month at a $40 one-time rate. The LTV output in the calculator shows you the cumulative value per referral based on your assumed churn rate.
Both matter, but CTR is usually easier to improve quickly through content changes — adding a comparison table, moving a link higher on the page, or using a contextual callout box. Conversion rate depends largely on the merchant's landing page, which you don't control. Focus optimization effort on CTR first, then evaluate whether a different offer with a stronger merchant page improves downstream conversion.
It depends entirely on your CTR, conversion rate, and commission size — which is why the "clicks needed" output in the calculator is more useful than a views estimate. A realistic middle-ground scenario (2% CTR, 1.5% conversion, $45 commission) requires about 1,480 clicks — meaning roughly 74,000 monthly page views at that CTR to hit $1,000/month. If you're building toward this, pair your affiliate income modeling with the CPM earnings calculator on simple-calculator.online to factor in any display ad revenue running alongside your affiliate links.
Plug your specific CTR, commission, and traffic numbers into the calculator above to see exactly how many clicks stand between you and your income target.