Email length directly affects how users engage with campaigns. This data compares click rates across short, medium, and long emails. The goal is to identify where engagement peaks. It provides practical guidance for structuring email copy.

Essential Statistics

• Emails between 100 and 249 words had the highest click rate at 3.57 percent.
• Emails under 99 words generated a 1.98 percent click rate.
• Emails between 250 and 459 words averaged a 2.01 percent click rate.
• Emails over 500 words dropped below a 1 percent click rate.
• Very long emails consistently underperformed shorter formats.

Key Takeaways

• Moderate-length emails outperform both short and long messages.
• More words do not translate to more clicks.
• Attention drops sharply after emails exceed 250 words.
• Clarity and focus drive engagement more than detail.
• Email performance is highly sensitive to copy length.

Actionable Insights

• Write emails in the 100 to 249 word range to maximize click-through rates, as this length consistently outperforms shorter and longer formats.
• Trim unnecessary explanations from email copy, because engagement drops sharply once messages become too long.
• Use links instead of long explanations to move readers to landing pages where detail belongs.
• Audit existing email templates for length creep and simplify where possible to recover lost clicks.
• Match email length to intent, keeping promotional and announcement emails concise and action-focused.

Email works best when it respects attention. This data shows that saying just enough drives far more action than trying to explain everything. – Neil Patel