• Email Subject Lines – Statistics and Trends

    an infographic on email subject lines, statistics and trends

    Did you know 47% of email recipients open email based on the subject line whereas  69% of email recipients report email as spam based solely on the subject line. Emails with no subject all together have an open rate of 8% more than those with a subject line, whereas e-mails with personalized subject lines are 22% more likely to be opened. Check out our infographic on E-mail subject lines for latest statistics and trends.


    Email Subject Lines Statistics and Trends

    Infographic by- Invesp Conversion Optimization

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    Open rate by number of words in E-mail subject line

    Number of words Open rate
    0-5 16%
    6-10 21%
    11-15 14%
    16-20 12%
    21-25 9%


    Open rates with recipients name in E-mail subject line

    Name Open rate
    With name 18.30%
    Without name 15.70%


    18.7% decrease in open rates when the word “newsletter” is used in subject lines.

    Emails with “Free” in the subject line were opened 10% more than those without.

    Emails with “fw:” in the subject line were opened 17% less than those without.

    Subject lines that create a sense of urgency and exclusivity can give a 22% higher open rate.

    FigPii Heatmaps


Khalid Saleh

Khalid Saleh is CEO and co-founder of Invesp. He is the co-author of Amazon.com bestselling book: "Conversion Optimization: The Art and Science of Converting Visitors into Customers." Khalid is an in-demand speaker who has presented at such industry events as SMX, SES, PubCon, Emetrics, ACCM and DMA, among others.

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Khalid Saleh

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