Facebook Ads ROI calculator

Before You Spend a Penny on Facebook Ads, Do This First

If you've ever wondered whether Facebook ads are actually worth it for your store — you're not alone. It's one of the most common questions DTC founders ask. And the honest answer is: it depends on your numbers.

That's exactly what Stirling's free Facebook Ads ROI Calculator helps you figure out — in about 30 seconds.

Facebook Ads ROI Calculator

How it works

There's no sign-up, no demo call, no spreadsheet to build. You just enter two things: how much a typical customer is worth to your business, and how much you're thinking of spending on ads each month. The calculator then runs those numbers against real Facebook advertising data — like average cost per click, typical conversion rates, and average cost per lead — and gives you a clear yes or no answer on whether the math works for your business.

That's it. No jargon, no fluff.

Why this matters for ecommerce shops

Here's the problem most store owners run into: they jump into Facebook ads, spend a few hundred (or a few thousand) dollars, don't see the results they hoped for, and conclude that Facebook ads just don't work. But often the real issue is that the numbers were never going to work at that budget or with that customer value — and a quick check beforehand would have shown that.

The calculator also shows you realistic projections — how many leads and customers you could expect to see — based on actual platform averages, not best-case-scenario numbers.

When should you use it?

It's a great first step before you launch a new campaign or increase your ad spend. It's also handy if you're thinking about Facebook ads for the first time and want a gut-check before committing any budget. Even if you're already running ads, it's worth plugging in your current numbers to see if your spending level makes sense for your goals.

The whole thing takes half a minute and could save you from wasting a lot of money — or help you feel confident about scaling up. Check it out at trystirling.com/tools/facebook-ads-roi-calculator.

Happy to adjust the tone or angle — just let me know!