Google Ads Character Limits: Headlines, Descriptions & Extensions

Google Ads gives you less room to make an argument than almost any other medium you will ever write in. Fifteen headlines of thirty characters. Four descriptions of ninety. Two display paths of fifteen each. That is the entire pitch — and you are bidding real money on how well those 180 characters of core copy perform. Here are the exact limits for every asset type as of 2026, and the craft of making short copy do long-copy work.

The limits at a glance (as of 2026)

Google counts every character — spaces and punctuation included — and the ad builder simply refuses character 31 of a headline, so nothing over a limit can even be saved, let alone serve. The caps below have been stable for years; Google reshuffles formats more often than it reshuffles limits.

Two of these caps do the overwhelming majority of the work: the 30-character headline and the 90-character description. Everything else is garnish that widens your footprint on the results page.

Responsive Search Ads: where the characters live

In a Responsive Search Ad you supply up to 15 headlines (30 characters each) and up to 4 descriptions (90 characters each), and Google's system assembles them on the fly — typically up to 3 headlines and 2 descriptions per impression — testing combinations against real searches and shifting traffic toward what wins. The consequence for writers is unusual: each headline must stand alone and read naturally when glued to two others it has never met. "Free Trial" above "No Credit Card" above "Sign Up Today" works; three half-sentences that only make sense in one order do not.

You can pin a headline to a specific position when compliance or branding demands it, but every pin removes a variable the system could have tested — pin sparingly. And do not skip the display paths: the two 15-character path fields appear after your domain (wordlycount.com/word-counter/free-tool), cost nothing extra, and let searchers pre-validate the click.

Writing 30-character headlines that earn the click

Because the field refuses character 31, truncation in Google Ads is not something Google does to you — it is something you do to yourself: submitting a line that was cut badly, or one padded with filler to feel finished. Thirty characters is roughly five words. That is enough for one idea, not an argument, so the craft is choosing the idea:

• Front-load the keyword. The search term should appear early — bolded match text draws the eye first.
• One angle per headline. Feature, benefit, proof, offer, or call to action — never two crammed together.
• Cut the throat-clearing. Drop "a", "the", and adjectives like "amazing" that survive deletion with no loss of meaning.
• Use numerals. "Save 20%" is 8 characters; "save twenty percent" is 19.
• Fill all 15 slots with distinct angles. Fifteen variations of the same claim give the system nothing to test; fifteen different hooks give it everything.

Watch the arithmetic in practice: "Free Word Counter Tool" is 22 characters — 8 wasted. "Free Word Counter — No Sign-Up" is exactly 30 and says twice as much. "Count Words & Chars Instantly" squeezes a product description into 29. Every one of those refinements is a character-count decision, which is why counting as you draft matters more here than anywhere else in copywriting.

Spending your 90 characters (and your 25s)

Descriptions get 90 characters — about 14 words — and usually show two at a time, side by side or stacked. The reliable structure is benefit, then specifics, then a reason to act: "Counts words, characters, and reading time instantly. Free, no sign-up, nothing installed." That is 87 characters, and each half works whichever pair it lands in.

Extensions add ink to your ad at no extra cost per click, with their own caps: sitelink text at 25 characters (deep links to pages like Pricing or Examples) and callouts at 25 (short trust markers: "Free Forever", "24/7 Support", "No Ads"). Twenty-five characters is four words — treat callouts as labels, not sentences.

Count every asset before you submit

Over-limit assets are refused at the keyboard, but under-limit thinking ships quietly: headlines at 22 characters, descriptions that stop at 60 because the writer guessed. Make counting part of drafting — paste your headline candidates into the WordlyCount character counter and watch the live count as you trim toward 30 without crossing it.

The same budgeting discipline runs through every platform's microcopy: results-page snippets obey the truncation math we cover in meta description character limits, and if video is part of the campaign, the platform-side caps in YouTube character limits apply to your titles and descriptions there. Short copy is one craft with many scoreboards.