Ad Copy Character Limits: Google Ads, Meta Ads, and Social Media

Every advertising platform enforces strict character limits on headlines and descriptions. Knowing these limits is the first step to writing effective ad copy that drives clicks and conversions.

Character Limits by Platform

Platform	Headline	Description	Notes
Google Ads (Search)	30 characters x 15	90 characters x 4	Responsive search ads
Google Ads (Display)	30 characters	90 characters	Short headline: 25 chars
Meta Ads (Facebook/Instagram)	40 characters	125 characters	Primary text: 125 chars recommended
LinkedIn Ads	70 characters	150 characters	Sponsored content
X (Twitter) Ads	N/A	280 characters	Same as organic posts
Microsoft Ads	30 characters x 15	90 characters x 4	Similar to Google Ads

Copywriting Tips for Limited Space

Lead with the benefit, not the feature
Include numbers and specifics — "Save 30%" outperforms "Save money"
Use active verbs: "Get," "Try," "Start," "Discover"
Test multiple variations — small wording changes can significantly impact CTR

Conclusion

Ad copy character limits vary significantly across platforms. Master each platform's constraints and write copy that maximizes impact within those limits. Use Character Counter to verify your ad copy lengths before launching campaigns.