Google Business Profile posts are built for search intent — a searcher scanning your listing wants a tight announcement: what, when, how much, and a button to act on it. Facebook’s feed is a completely different contract. The people scrolling there didn’t search for you; they need a reason to stop. That means a 1,500-character GBP mini-post almost always needs to grow, not shrink, when it moves to Facebook — adding context, a conversational hook, and a social reason to comment or share that a GBP post was never designed to carry.
The image tells the same story in reverse: GBP thumbnails favour a roughly 4:3 frame, while Facebook’s feed leans portrait (4:5 or square) and populates a link-preview card when you include a URL. This guide maps the genuine expansion work — and the handful of things that flip entirely — when you repurpose a Google Business update as a Facebook post.
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Everything that changes between the two composers, side by side.
| Spec | Google Business (from) | Facebook (to) |
|---|---|---|
| Primary canvas | 1200 × 900 px · 4:3 (post image) | 1080 × 1350 px · 4:5 (post) |
| Caption limit | Posts up to 1,500 characters | 63,206 characters (feed truncates after a few lines with “See more”) |
| Video length | Photos preferred; videos up to 30 seconds / 75 MB per Google’s help docs | Long feed uploads supported (hours); Facebook Reels are far shorter — check the composer for your account’s cap |
| Hashtags | No hashtag culture — Google Business posts read like mini announcements | Supported but lightly used — one or two at most reads native on Facebook |
| Image aspect ratio | Roughly 4:3 — 1200 × 900 px commonly recommended for GBP posts | 4:5 portrait (1080 × 1350 px) or 1:1 square native to the Facebook feed |
| CTA / link format | Structured button (Learn more, Book, Call now) tied to verified profile | Inline URL or link-share post generating a preview card; no structured button |
| Post lifespan | Standard updates fade from prominence after about a week; Offers/Events last to their end date | Stays on your Page; feed reach decays over days but the post remains permanently |
The good news
The fine print
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Tip 1
Treat the GBP post as a brief: it already contains the hard facts — use those as a skeleton and write the Facebook post around them rather than starting from scratch.
Tip 2
Phone numbers are fine in Facebook post text (Google’s content policy has restricted them in GBP post text) — if the GBP version routed readers to a Call now button, you can write the number directly into the Facebook caption.
Tip 3
GBP Offer posts expire on their end date; Facebook posts stay on your Page indefinitely — if the deal has closed, either archive the Facebook post or edit it to reflect the outcome.
FAQ
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The facts don’t need rewriting, but the frame usually does. GBP posts are written for searchers in high-intent mode; Facebook posts land in a social feed where a conversational hook, a question, or a share-worthy angle helps the same content travel further. A direct paste typically works for the core details — add an opening line and a closing prompt to engage.
GBP posts favour a roughly 4:3 canvas (1200 × 900 px is the commonly recommended size). Facebook’s feed renders images best at 4:5 portrait (1080 × 1350 px) or square (1080 × 1080 px). Re-crop the same photo with the subject centred so Facebook’s feed frame doesn’t letterbox or clip it.
Yes. Google’s posts content policy has restricted phone numbers in GBP post text — that’s a Google-specific rule. Facebook has no such restriction, so if the GBP version routed readers to a Call now button instead, you can write the number directly into the Facebook caption.
Google Business posts have no hashtag culture — there is no tag-based discovery on a Business Profile listing. Facebook supports hashtags and one or two relevant tags is the platform norm; a handful used thoughtfully can extend organic reach. Add them when you adapt the post, but keep the count low — a wall of tags reads as out of place on Facebook.
Compose once, customize the caption per network, and let SocialKit publish to Google Business, Facebook, and 9 more platforms on schedule — no re-uploading, no copy-paste.
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