Before you spend on ads, find out how many sales you need to cover your budget, the most you can pay per click and per sale, and whether your current cost per click makes a profit or a loss.
Example helper: want to see how it works first? Tap an example campaign to fill in the numbers, then replace them with your own.
Planning ceiling only. Treats ad spend as your only cost; add tools or other costs to the budget if you want them included. Real costs per click change with platform, niche and competition.
Quick answer: Divide your ad budget by the commission you keep per sale (after refunds) to get the sales needed to break even. Multiply the commission you keep by your conversion rate to get the most you can pay per click. For example, a $35 commission at a 2% conversion rate means you can pay up to $0.70 per click; a $300 budget needs 9 sales to break even.
The calculator works out your limits from your own numbers — no hidden averages.
Commission kept per sale = commission × (1 − refund rate)
Sales needed = (ad budget + profit goal) ÷ commission kept per sale
Most you can pay per sale = commission kept per sale
Most you can pay per click = commission kept per sale × conversion rate
Clicks needed = sales needed ÷ conversion rate
At your cost per click: clicks = budget ÷ cost per click, sales = clicks × conversion rate
Sales and clicks needed are rounded up. Expected profit = sales × commission kept − budget.
The most you can pay for one sale is simply the commission you keep from it: pay more and that sale loses money. The most you can pay per click is lower, because most clicks don’t buy. With a 2% conversion rate, only 2 in 100 clicks become sales, so each click is worth 2% of your commission.
If 5% of sales are refunded, the network usually takes those commissions back. A $35 commission is then worth $33.25 on average, which lowers both the most you can pay per click and per sale. Leaving refunds out makes a campaign look safer than it is.
Example values are only placeholders. Your limits are only as accurate as the numbers you put in, so use real data as soon as you have it:
| Input | Where to find it | Tip |
|---|---|---|
| Ad budget | Your planned spend for this test or campaign | Add tools or other costs here if you want them included. |
| Commission per sale | The affiliate program page or network listing | Use the commission most buyers trigger, not the top tier. |
| Conversion rate | Your dashboard: sales ÷ clicks | Use a cautious guess until you have a few hundred clicks of real data. |
| Your cost per click | Your ads manager | Check each platform separately; costs differ a lot. |
| Refund rate | The vendor’s stats or your refunds report | Plan with a cautious figure if the offer is new. |
A $300 budget, $35 commission and 2% conversion rate. You can pay up to $0.70 per click, and you need 9 sales to break even ($300 ÷ $35 = 8.6, rounded up).
A $100 budget promoting a $25-commission product at 3% conversion. You can pay up to $0.75 per click and need 4 sales to break even.
A $200 commission converting at just 1% still lets you pay up to $2.00 per click. Higher commissions can absorb much more expensive traffic.
$300 budget, $35 commission, 5% refunds and 2% conversion: the limit is $0.665 per click. Paying $0.50, the budget buys 600 clicks and about 12 sales, keeping $399 — a $99 profit.
Your limit per click is commission kept × conversion rate, so raising either one gives you more room. Pick the lever that’s easiest for you to move:
It’s the point where the commission you keep exactly equals what you spent: no profit, no loss. Every sale after that point is profit.
Multiply the commission you keep per sale by your conversion rate. For example, a $50 commission at a 2% conversion rate means you can pay up to $1.00 per click on average.
Use a cautious guess, such as 1%, then run a small test. Once you have real clicks and sales, enter your actual conversion rate for a much more accurate limit.
This calculator is for planning: it shows the limits before you spend. The Affiliate ROI Calculator checks a campaign after it has run, using the cost and commission you actually had.
It means less risk, but not always more profit. A campaign with a higher break-even point can still earn more overall if it sells in much bigger numbers.
No. It only changes the symbol shown. Enter all your amounts in the currency you choose.
New to affiliate marketing? Start with What Is Affiliate Marketing?, then see our free traffic methods for beginners.
Disclaimer: This calculator is a planning tool, not an income promise. It uses only the numbers you enter and standard arithmetic. Affiliate results depend on your niche, offers, traffic and effort, and many people earn little or nothing.
Last updated: 10 October 2026 · By Udaychandra, IncomeJets