Google Ads captures people already searching for what you offer, while Facebook (Meta) Ads reach people who match your target profile before they've started searching — Google Ads generally converts better per lead, Meta Ads generally costs less per lead, and most businesses that can afford both run them together rather than choosing one.
Intent vs. Reach: the Core Difference
Google Ads is an intent-capture channel — it shows up when someone is actively typing a search, which means the person is already at some stage of looking for a solution. Facebook and Instagram Ads are a reach-and-interrupt channel — they show up while someone is scrolling, based on demographic and interest targeting, regardless of whether they were thinking about your category at that moment. Neither approach is better in the abstract; they solve different parts of the funnel.
Typical Cost Differences
Google Ads cost-per-click is generally higher, especially in competitive categories, because you're bidding against every other business targeting the same search intent. Meta Ads cost-per-click is usually lower and native lead forms remove the extra step of a separate landing page, which is why Meta often produces a lower raw cost-per-lead. The trade-off is lead quality: a Google Ads click already has some intent behind it, while a Meta lead may still need more qualifying before it's clearly a genuine prospect.
When Google Ads Usually Wins
Categories with strong existing search demand — services people already know they need and actively look for, like a lawyer, an SEO agency or a repair service — tend to perform better on Google Ads, since the platform is built to intercept that existing intent.
Visually driven offers, or products and services people don't yet know they want — a new property launch, a course, a lifestyle brand — tend to perform better on Meta, where carousel and video formats can generate interest and demand rather than just capturing it.
Running Both Together
The strongest setups typically use Meta to build awareness and warm an audience, then use Google Search Ads to capture that same audience once they start actively searching by brand or category name, and layer retargeting across both platforms to bring back anyone who engaged without converting. Treating this as an either/or decision usually leaves performance on the table once the budget can support both.
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