Email Campaign Metrics Calculator
Calculate delivered-email open, click and unsubscribe rates from one campaign’s aggregate counts.
Set your values
Adjust the values, then calculate your result.
How to use Email Campaign Metrics Calculator
- Enter the measurements or amounts in the fields above.
- Check that dimensions, rates and units match the labels.
- Select “Calculate email metrics” to see a clear estimate and the formula used.
How the email campaign metrics calculator works
Open, click and unsubscribe rates divide each event count by delivered emails. Click-to-open rate divides unique clicks by unique opens.
Check your measurements and assumptions
Mail privacy features, bot filtering and provider definitions affect these rates. Use aggregate counts from the same campaign and reporting window; do not treat opens as confirmed human reads.
Review the estimate before you act
Compare this result with an independent measurement, supplier quote or institution guidance when the decision matters. Confirm that the units and assumptions match the labels above, and update the inputs when the conditions change. Keep a note of the values used so you can reproduce the estimate later. This calculator is a planning aid and does not replace professional, product-specific or local guidance.
How do I calculate an email open rate?
Divide unique opens by delivered emails and multiply by 100.
Is input uploaded?
Processing takes place in your browser. This tool does not send your input or selected files to a conversion API.