How do you improve open rate?
- Segment by subscriber intent.
- Use clearer subject lines.
- Keep sender identity consistent.
- Remove stale or unengaged subscribers over time.
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Client-side calculator
Email open rate calculator.
Calculate how many delivered subscribers opened your email and use the result to spot subject line, sender trust, or audience-fit problems.
Open rate
TL;DR
Open rate is a top-of-funnel signal. If it is weak, review subject lines, sender name, list source, segmentation, and whether subscribers expected the message.
What should you measure next?
Open rate alone does not prove revenue. Pair it with click rate, conversion rate, unsubscribe rate, and revenue per subscriber.
FAQ: email open rate
How do you calculate email open rate?
Email open rate is calculated by dividing unique opens by delivered emails, then multiplying by 100.
What is a good email open rate?
A good open rate depends on the industry, list quality, sender reputation, and campaign type. Use your own historical average as the most useful benchmark.
Does this open rate calculator use AI?
No. It runs in your browser and uses simple math, so it does not use AI credits or server resources.
Next step
Improve weak opens with a better funnel sequence.
Use EmailFunnelAI to generate subject lines, preview text, and subscriber-stage messaging that supports the whole funnel.
Start free in EmailFunnelAIUse the free tool output as your brief. No credit card required.