Google Ads or Facebook Ads? If you only have the budget (or the energy) for one channel, the question deserves better than a hot take. I run both daily for my clients, and the answer fits in one sentence: Google captures demand that already exists, Facebook creates demand that does not exist yet. Everything else follows from that.
The fundamental difference: capturing vs creating demand
On Google Ads, your prospect has a problem and types it into the search bar. You show up at the exact moment they are looking for a solution: the intent is already there, your job is to capture it before your competitors do.
On Facebook and Instagram Ads, your prospect is not looking for anything. They are scrolling. Your job is to interrupt that scroll with a creative strong enough to generate a desire that did not exist three seconds earlier.
These are not two variants of the same job: they are two different jobs, with different creatives, different metrics and different payback timelines.
Where Google Ads wins
- Maximum intent: someone typing a query is already in solution mode. Conversion rates on transactional queries are structurally higher.
- Finite but qualified demand: you cannot reach more people than the search volume allows, but every click starts from a real need.
- Ideal for considered or urgent purchases: B2B services, emergencies, comparison shopping, anything people actively search for.
- The message can be simple: answering the query is often enough, no spectacular creative needed.
Where Facebook Ads wins
- Near unlimited volume: you are not capped by search volume, you reach your audience before they search.
- Product discovery: unbeatable for making people discover a product nobody searches for yet (novelty, impulse, lifestyle, visual e-commerce).
- Cheap reach: building awareness and remarketing audiences costs less than anywhere else.
- Creative is the lever: when a creative works, it can scale hard. Test yours properly with my creative testing calculator.
The criteria that settle it
- Does your demand already exist? If your market already types the search into Google, capture it first. If nobody searches for your product, Google cannot help you: that is Facebook's job.
- Can your economics absorb the CPC? In high-CPC markets, check with the ideal CPA calculator whether the Google click stays profitable. If not, Facebook discovery can cost less per conversion.
- Can you produce creatives? Facebook without a steady creative pipeline fades within weeks. Google lives happily on text and a good landing page.
- B2B or B2C? In B2B, Google search plus remarketing often does most of the work. In visual B2C e-commerce, Facebook often takes the lead.
- What is your horizon? Google converts faster at the start (existing demand). Facebook needs a creative learning phase before it scales.
Why they end up working together
For most of my mature clients, both channels run at the same time, each at its own stage of the funnel: Facebook creates demand and fills the audiences, Google captures that demand once it becomes a search, and remarketing on both sides closes the loop. Cutting one often hurts the other: branded search harvests what social has planted.
Verdict
- Start with Google Ads if your demand already exists (people search for your product or service) and your margins can absorb the CPC.
- Start with Facebook Ads if your product is discovered rather than searched, if the purchase is visual or impulsive, or if Google CPCs are out of reach.
- Combine both as soon as the first channel is profitable: that is the end state of nearly every account that scales.
Hesitating about your specific case? That is exactly the arbitration I do in an account audit, numbers in hand.
