Facebook ad character limits in 2026
Primary text — 125 characters visible before 'see more'; up to 2,200 total. Headline — 27 characters before truncation in feed; up to 40 characters. Link description — 27 characters in feed; up to 30 characters.
The ratio: 80% of viewers read only the primary text first line, ~50% see the headline, ~20% see the link description. Front-load value in the primary text; treat headline + description as amplification.
