Free Affiliate Marketing Tools & Calculators

Four free tools for planning and running an affiliate program on your store: a commission calculator, a discount break-even calculator, a 12-month ROI projector, and a coupon code name generator. No signup, no email gate, and nothing you enter is stored or sent anywhere. Every tool runs in your browser.

Each one answers a specific question store owners hit when setting up or reviewing a program:

Tool	The question it answers
Affiliate commission calculator	What commission rate can my margins actually support?
Discount break-even calculator	How many extra sales does this coupon need before it pays for itself?
Affiliate program ROI calculator	Would an affiliate program make my store money over 12 months?
Coupon code name generator	What should I actually call this coupon code?

Affiliate commission calculator

Enter your average order value, gross margin, and affiliate coupon discount, and it works out three rates: where you break even, the most you can pay while keeping your minimum profit, and a sensible rate to launch with. The coupon discount field is the part most commission calculators leave out, even though the discount comes from the same margin pot as the commission. Pairs with our written guide to setting affiliate commission rates in WooCommerce for the strategy side.

Coupon discount break-even calculator

Discounts cost more than they look: at a 50% margin, a 15% coupon needs about 43% more orders just to stand still. This one takes your margin and a planned discount and tells you the sales uplift required to break even, with a reference table covering common margin and discount combinations. Use it before any sale, coupon campaign, or affiliate discount decision.

Affiliate program ROI calculator

A 12-month projection of what an affiliate program would earn your store: referred revenue, commission paid, net profit, and ROI. It accounts for gross margin, coupon discounts, the share of affiliates who actually promote, and your fixed program costs, so the output is profit rather than a flattering revenue number. Useful before launch to test whether the program design holds up, and after launch with real figures from your reporting. If your projection disappoints, our guide on why affiliate programs fail to make money covers the usual causes.

Coupon code name generator

Type a name and get a dozen memorable code ideas across different styles: classics like EMMA15, evergreen ones like EMMASAVES, and community styles like TEAMEMMA. Click any code to copy it. The page alongside it covers naming rules that save real money, from guessable-pattern risks to why near-duplicate codes cause misassigned sales in coupon-tracked programs.

About these tools

These tools are built and maintained by the team behind Afiliados al cupón, a coupon-based affiliate plugin for WooCommerce, so they lean toward the questions coupon-based programs raise (which is why discounts appear in the maths where most calculators ignore them). The tools are free and work whether or not you use our plugin. Each calculator page explains its formula in full, with a worked example, so you can check the maths or reproduce it in a spreadsheet.

Nothing you type into any tool is collected. There are no accounts, no email gates, and no tracking of your inputs: the calculations happen in your browser and stay there.

If there is a calculation you keep doing by hand that belongs here, tell us about it and we may build it. New to affiliate programs entirely? Start with the complete guide to WooCommerce affiliate marketing, then come back to the calculators when you have numbers to test.

Frequently asked questions

Are these tools really free?

Yes. No cost, no signup, no feature limits. We make a WooCommerce affiliate plugin, and free tools that help store owners get their numbers right are good marketing for it. That is the whole business model behind this page.

Do I need the Coupon Affiliates plugin to use them?

No. The maths applies to any affiliate program on any platform. The coupon discount fields default to values typical of coupon-based programs, but setting them to zero makes every calculator work for link-only programs too.

Can I link to or share these tools?

Please do. They are public pages and you are welcome to reference them in your own articles, courses, or resource lists. If you cite a specific formula, a link back to the relevant tool page helps your readers check the working.

Where do the formulas come from?

Standard retail and unit economics, applied to affiliate programs. Each tool page documents its formula and shows a worked example with the same defaults the calculator loads with, so the page and the tool always agree. If you spot an error in the maths, contact us and we will fix it and say so.