Email Open Rate Calculator is a free tool that computes all key email marketing metrics from your campaign data. Enter your numbers — emails sent, opened, clicked, bounced, unsubscribed — and get instant calculations for open rate, CTR, CTOR, bounce rate, delivery rate, conversion rate, and ROI with industry benchmarks.
Email Open Rate Calculator
Calculate email open rate, click-through rate, bounce rate, unsubscribe rate, conversion rate, and ROI. Benchmark your campaign against industry averages. Free email metrics calculator.
Campaign Data
Conversions & ROI (optional)
Industry Benchmark
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Open Rate
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Click-Through Rate
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Click-to-Open Rate
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Delivery Rate
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Bounce Rate
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Unsubscribe Rate
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Delivered
How Metrics Are Calculated
Delivered= Sent - Bounced
Open Rate= (Opened / Delivered) x 100
CTR= (Clicked / Delivered) x 100
CTOR= (Clicked / Opened) x 100
Bounce Rate= (Bounced / Sent) x 100
Delivery Rate= (Delivered / Sent) x 100
Unsub Rate= (Unsubscribed / Delivered) x 100
Conv Rate= (Conversions / Delivered) x 100
RPE= Revenue / Delivered
ROI= ((Revenue - Cost) / Cost) x 100
About Email Open Rate Calculator
Features
- 10 metrics calculated: Open rate, CTR, CTOR, bounce rate, delivery rate, unsubscribe rate, conversion rate, list growth, revenue per email, ROI
- Industry benchmarks: Compare against 12 industry averages
- Visual gauges: Color-coded performance indicators
- ROI calculator: Cost vs revenue analysis
- Campaign history: Save and compare multiple campaigns
How to Use
- Enter your campaign numbers (sent, delivered, opened, clicked, etc.)
- All metrics calculate automatically as you type
- Compare against industry benchmarks
- Optionally add cost and revenue for ROI
Benefits
- Understand campaign performance at a glance
- Know if your rates are above or below industry average
- Calculate the true ROI of your email campaigns
- Free, private, runs in your browser
Frequently Asked Questions
How is email open rate calculated?
Open Rate = (Emails Opened / Emails Delivered) x 100. Delivered means total sent minus bounces. For example, if you sent 10,000 emails, 500 bounced, and 2,375 were opened: 2,375 / 9,500 = 25% open rate.
What is a good email open rate?
Industry average is 15-25%. Above 25% is good, above 30% is excellent. It varies by industry: nonprofits average ~28%, ecommerce ~15%, SaaS ~22%. The tool shows benchmarks for 12 industries.
What is click-through rate (CTR)?
CTR = (Unique Clicks / Emails Delivered) x 100. It measures how many recipients clicked a link in your email. Average CTR is 2-5%. Click-to-Open Rate (CTOR) = Clicks / Opens, measuring engagement among those who opened.
How is email ROI calculated?
ROI = ((Revenue - Cost) / Cost) x 100. Enter your campaign cost and revenue generated. Email marketing averages $36-42 return for every $1 spent.
What metrics does this tool calculate?
Open rate, click-through rate (CTR), click-to-open rate (CTOR), bounce rate, unsubscribe rate, conversion rate, delivery rate, list growth rate, revenue per email, and campaign ROI.
Is my data stored?
No. All calculations run in your browser. Nothing is transmitted.