Google Ads Character Limit Checker

Every responsive search ad field, its exact cap, and a free live checker with AI rewrite-to-fit.

30 / 90 / 15
characters per headline / description / display path in a responsive search ad

Check your Google Ads copy

Responsive Search Ads: 3–15 headlines (30 characters each), 2–4 descriptions (90 characters each), and up to 2 display paths (15 characters each). Spaces count toward the limit.
Display path 1 15 max0 / 15
Display path fits within the limit.
Display path 2 15 max0 / 15
Display path fits within the limit.

The short answer

A Google Ads responsive search ad (RSA) gives you 30 characters per headline and 90 characters per description — and yes, spaces and punctuation count. You supply 3–15 headlines and 2–4 descriptions, and Google's system mixes and matches them per auction, typically showing two or three headlines and one or two descriptions at a time. The two optional display paths (the friendly text appended to your display URL) get 15 characters each.

Unlike social platforms, Google doesn't truncate over-long ad copy — it simply won't let you save it. The Google Ads editor blocks any headline past 30 characters and any description past 90, so an asset that busts the limit stalls your whole workflow: you're stuck rewriting in a tiny inline editor instead of shipping the campaign. Checking your copy before you paste it into the platform is faster, especially when you're loading 15 headlines at once.

Google Ads character limits by field

FieldLimitHow many
Headline30 characters3–15 per ad
Description90 characters2–4 per ad
Display path15 charactersup to 2
Callout asset25 characters2+ recommended
Sitelink text25 characters2+ recommended

Limits are set by Google and occasionally change; figures reflect the current publicly documented caps.

Why 30 characters is harder than it sounds

Thirty characters is roughly four to six words. Fitting a benefit, a keyword and a differentiator into that space is the core craft of search ad copywriting — which is why Google asks for up to 15 variants and rewards ads whose headlines don't all say the same thing. If a headline you love lands at 34 characters, don't chop words off the end: use the ✨ Rewrite to fit button above and AI will compress it while keeping the message and call to action intact.

Frequently Asked Questions

How many characters can a Google Ads headline have?
30 characters per headline, including spaces and punctuation. A responsive search ad accepts between 3 and 15 headlines, and Google typically displays two or three of them at a time.
How long can a Google Ads description be?
90 characters per description. You can add 2 to 4 descriptions per responsive search ad, and Google usually shows one or two in any given impression.
Do spaces count toward Google Ads character limits?
Yes. Every character counts — letters, numbers, spaces and punctuation all consume the 30-character headline and 90-character description budgets.
What happens if my ad copy exceeds the limit?
Google Ads won't truncate it — the editor simply refuses to save the asset until it fits. That's why it's faster to check and trim your copy in a character counter before pasting it into the platform.
What is the display path character limit?
Each of the two optional display path fields holds 15 characters. They're cosmetic — they change the display URL users see, not the actual landing page URL.

Checking copy for more than one platform? The full Ad Copy Checker covers Google Ads, Meta, LinkedIn, TikTok, X and email subject lines in one place — with AI rewrite-to-fit on every field.

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Related guides

Compare with the other ad platforms: Facebook ad character limits, LinkedIn ad character limits and TikTok ad character limits. Writing organic posts instead? See the Twitter (X), Instagram, LinkedIn, Facebook and YouTube limit guides, or check any text against multiple platforms in the free character counter.