Character Limits 2025: The Only Cheat Sheet You Need

September 19, 2025 · 6 min read · social, reference, seo

Stop guessing. Use this quick reference and the Character Limit Checker before you post.

Fast Limits (Common)

Email subject: 40–60 chars (mobile preview).
Meta title: 50–60 chars; Meta description: ~155 chars.
Instagram caption: up to 2,200; but 125 "above the fold."
X (Twitter) post: typical text under 280 chars for clarity.
LinkedIn post: ~3,000; "see more" truncation after ~140–210.
YouTube title: ~100; description: ~5,000; first 150 matter most.

Practical Rules

Put the hook first 60–120 chars.
Trim filler words; replace vague verbs.
Test variants with the tool, then pick the shortest that still sells.

Pro move: Keep a personal limits doc, then paste into our checker right before publishing.