Affiliate Commission Calculator
(Commission per Sale, Monthly Earnings and EPC)
Enter the order value and commission rate, or a fixed commission per sale. Add clicks, a conversion rate and a refund rate to estimate a month and see earnings per click.
Commission type
The sale amount the commission is paid on
1 for a one-time commission. For a subscription with recurring commission, the months a customer stays
Monthly estimate (optional)
Share of clicks that become a sale
Share of sales that are refunded or not approved, so no commission is paid
Affiliate Commission
💡 Formula Guide
This affiliate commission calculator works out what one sale pays you, from a percentage of the order or a fixed amount. Add your monthly link clicks and conversion rate and it estimates a month of commission, with refunds taken off, and shows your earnings per click.
How Affiliate Commission Is Calculated
An $80 order at a 10% commission pays $8. If your links get 2,000 clicks a month and 2% of clicks become a sale, that is 40 sales and $320. With a 5% refund rate, 38 sales are paid and the commission is $304.
| Conversion rate | Sales from 2,000 clicks | Commission at $8 a sale | Earnings per click |
|---|---|---|---|
| 1% | 20 | $160 | $0.08 |
| 2% | 40 | $320 | $0.16 |
| 3% | 60 | $480 | $0.24 |
| 5% | 100 | $800 | $0.40 |
The conversion rate has as much effect as the commission rate. Doubling either one doubles the result.
Earnings per Click
EPC puts programs with different prices and rates on one scale. $320 from 2,000 clicks is $0.16 per click. A program with a lower commission rate can still have a higher EPC if more of its clicks convert or its orders are larger.
Some affiliate networks report EPC per 100 clicks. On that basis the same result is $16. Check the definition before comparing a network's figure with your own.
Fixed and Recurring Commissions
- Fixed amount per sale. Some programs pay a set sum for each sale or sign-up, whatever the order value. Choose the fixed amount option and enter it.
- Recurring commission. Subscription products may pay on every payment while the customer stays. Enter the months a customer stays in the months field.
A $30 monthly plan at 30% pays $9 a month. Over 6 months that is $54 per customer. When the months field is above 1, the monthly figure shows the total those customers will pay out over their stay, so it arrives over several months and is not all received in the first one.
Why Real Earnings Come In Lower
- Refunds and reversals. Commission on refunded or cancelled orders is normally not paid. Enter a refund rate to allow for it.
- Cookie window. A purchase made after the program's tracking window ends is not credited to you.
- Untracked sales. A buyer who switches device, clears cookies or clicks another affiliate's link later may not be tracked to you. The rules differ between programs.
- Payment terms. Programs often hold commission for a period and pay only above a minimum balance.
Commission rates, cookie windows and payment terms are set by each program and change over time. This page does not list them. Read the program's own terms page for current figures.
Using Your Own Numbers
Your affiliate dashboard reports clicks, orders and commission. Divide orders by clicks for your real conversion rate and use that here in place of a guess. If you are choosing between programs, run each one with its own order value, rate and your expected conversion rate, and compare the EPC.
The Conversion Rate Calculator works out the rate from clicks and sales. For other ways a site or channel earns, see the AdSense Revenue Calculator and the YouTube Revenue Calculator.
How to Use the Affiliate Commission Calculator
- Choose the commission type: Pick percentage of the sale or a fixed amount per sale.
- Enter the commission: Type the average order value and the rate, or the fixed amount.
- Set the months paid: Leave it at 1 for a one-time commission. For recurring commission, type the months a customer stays.
- Add clicks and conversion rate: Optional. Type your monthly link clicks and the share of clicks that become a sale.
- Add a refund rate: Optional. Type the share of sales that are refunded or not approved.
Frequently Asked Questions
How do I calculate affiliate commission?
Multiply the sale amount by the commission rate. An $80 order at 10% pays $8. If the program pays a fixed amount per sale, that amount is the commission.
How do I estimate monthly affiliate earnings?
Multiply clicks by conversion rate to get sales, then multiply by the commission per sale. 2,000 clicks at a 2% conversion rate is 40 sales, and at $8 each that is $320.
What is EPC in affiliate marketing?
EPC is earnings per click: commission earned divided by clicks on your affiliate links. $320 from 2,000 clicks is $0.16 per click. Some networks quote EPC per 100 clicks, which would be $16 here, so check which one a program uses.
How do refunds affect commission?
Programs normally do not pay commission on refunded or cancelled orders, and may take back commission already credited. A 5% refund rate turns 40 sales into 38 paid sales, so $320 becomes $304.
How does recurring commission work?
Some subscription products pay commission on every payment the customer makes. A $30 monthly plan at 30% pays $9 a month. If the customer stays 6 months, that customer is worth $54 in commission.
What is a cookie window?
It is the period after a click during which a purchase is credited to you. If the buyer purchases after the window ends, you earn nothing for that sale. Each program sets its own window, so read its terms.
Formulas and worked examples checked in October 2026.