Enter your visitors and conversions to get your conversion rate, what each visitor is worth and how much traffic you need for your goal. Or compare two versions of a page side by side and see whether the difference is real or could just be chance.
Mode: work out one conversion rate, or compare version A with version B (two headlines, two pages or two time periods).
Example helper: tap an example to fill in the numbers, then replace them with your own.
Planning estimate only. The chance check is a standard two-proportion test at 95% confidence. It can’t account for changes in traffic, seasons or tracking errors during a test.
Quick answer: Divide your conversions (sales, leads or sign-ups) by your visitors or clicks, then multiply by 100. For example, 25 sales from 1,000 visitors is a 2.5% conversion rate: one sale for every 40 visitors.
The calculator uses only the numbers you enter — no hidden averages. In One page mode it gives your rate, plus revenue if you add a value per conversion. In Compare A/B mode it shows both rates, the lift between them, and a chance check.
Conversion rate = conversions ÷ visitors × 100
Visitors per conversion = visitors ÷ conversions
Revenue = conversions × value per conversion
Revenue per visitor = revenue ÷ visitors
Visitors needed for goal = goal ÷ conversion rate
A/B lift = (rate B − rate A) ÷ rate A × 100
Visitors needed are rounded up. The chance check is a two-proportion z-test: it passes when a gap this size would appear by chance less than 5% of the time.
Click-through rate (CTR) is how many people click out of those who see a link or ad. Conversion rate is how many of those visitors or clicks go on to buy or sign up. They measure different steps of the same funnel, so a page can have a great CTR and a weak conversion rate, or the other way round.
A version that converts at 3.4% instead of 2.5% sounds like a clear win. But if that’s 34 conversions against 25 from 1,000 visitors each, a gap that size can easily come from random chance. The same 36% lift from 5,000 visitors each passes the check. That’s why the calculator tells you whether to trust a result or keep testing.
Example values are only placeholders. Your result is only as accurate as the numbers you put in:
| Input | Where to find it | Tip |
|---|---|---|
| Visitors | Google Analytics or your site stats (users or unique visitors) | Use unique visitors, so one person’s repeat visits don’t lower your rate. |
| Clicks | Your affiliate dashboard or link tracker | Use clicks when you’re measuring what happens after someone leaves your page. |
| Conversions | Your affiliate dashboard, store or email tool | Match the same dates as your visitor count. |
| Value per conversion | Total commission ÷ number of sales | Use your average, not your best sale. |
Check each traffic source on its own. A blended rate can hide one source that converts well and another that barely converts at all.
1,000 visitors and 25 sales give a 2.5% conversion rate: one sale every 40 visitors. At a $40 commission that’s $1,000 in revenue, or $1.00 per visitor. To reach 100 sales you’d need about 4,000 visitors.
400 subscribers clicked through and 18 bought. That’s a 4.5% conversion rate, about one sale every 22 clicks. For 100 sales you’d need about 2,223 clicks at this rate.
Version A: 25 sales from 1,000 visitors (2.5%). Version B: 34 from 1,000 (3.4%). That’s a +36% lift, but the chance check doesn’t pass: a gap this size would show up about 23% of the time even if both versions were the same. Keep testing.
Version A: 125 from 5,000 (2.5%). Version B: 170 from 5,000 (3.4%). The lift is still +36%, but now the chance check passes: a gap this size would happen by chance less than 1% of the time. Version B is a safe winner.
It depends heavily on the offer, price and how warm your traffic is, so there’s no single number that fits everyone. The most useful target is your own: track each page and traffic source over time and work on raising it.
There’s no fixed number. It depends on how big the difference between the versions is. Small gaps need far more data than big ones. That’s why this calculator runs a chance check instead of using a rule of thumb.
It asks: if both versions really converted the same, how often would a gap this big show up by luck? If that’s under 5%, the check passes and the difference is very likely real. If not, keep the test running.
Click-through rate measures how many people click out of those who saw a link or ad. Conversion rate measures how many visitors or clicks go on to buy or sign up. They are different steps of the same funnel.
Unique visitors usually give a truer picture, since counting the same person’s repeat visits makes your rate look lower. Check which number your analytics tool shows before comparing rates.
No. It only changes the symbol shown. Enter your value per conversion in the currency you choose.
New to affiliate marketing? Start with What Is Affiliate Marketing?, then see our free traffic methods for beginners and the AI tools reviews.
Disclaimer: This calculator is a planning tool, not an income promise. It uses only the numbers you enter and standard arithmetic and statistics. Results depend on your niche, offers, traffic and effort.
Last updated: 11 October 2026 · By Udaychandra, IncomeJets