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Email Bounce Rate Calculator

Calculate total email bounce rate, separate hard and soft bounces, estimate delivery rate, and compare the result with your own monitoring target.

Emails Sent, Hard Bounces, Soft Bounces and Target Rate

Use figures from the same email campaign, audience scope and reporting period so the numerator and denominator describe the same activity.

Total email delivery attempts in the selected campaign or reporting period.
Messages rejected for permanent delivery reasons.
Messages temporarily undeliverable in the selected report.
Your own deliverability threshold or monitoring target.
Total Bounce Rate-
Hard Bounce Rate-
Soft Bounce Rate-
Estimated Delivered Emails-
Delivery Rate-
Bounces at Target Rate-
Bounce Gap vs Target-
Target Comparison-

Example: 2% Total Email Bounce Rate

Emails sent: 10,000

Hard bounces: 120

Soft bounces: 80

Total bounces: 200

Total bounce rate: 2.00%

Estimated delivered: 9,800

Delivery rate: 98.00%

Target bounce rate: 1.00%

The sample inputs shown here match the default calculator values so the example can be reproduced directly.

Formula

Total Bounces = Hard Bounces + Soft BouncesBounce Rate = Total Bounces / Emails Sent x 100Delivery Rate = Delivered Emails / Emails Sent x 100Delivered Emails = Emails Sent - Total Bounces

Input Checklist

Same scope: Keep delivery, engagement, conversion and cost figures from one comparable campaign or reporting window.Unique metrics: Use unique recipient counts where the calculator requests unique opens, clicks or unsubscribes.Decision context: Read email metrics together instead of optimizing one rate in isolation.

Reporting Note

Email platforms can count deliveries, opens, clicks, bounces, conversions and unsubscribes differently. When comparing campaigns, keep the provider, attribution window, recipient scope and unique-versus-total counting method consistent so a change in measurement is not mistaken for a change in performance.

Add This Email Bounce Rate Calculator to Your Website

Embed this free calculator on an email marketing, analytics or campaign-planning resource page. The ?embed=1 view keeps the calculator focused and supports responsive iframe resizing.

Embedding requirement: Keep the SolveIndex attribution and source link visible and unchanged.
How to Interpret the Result
Bounce rate is a deliverability and list-quality signal, not the same metric as website or GA4 bounce rate. Separate hard and soft failures, review the provider-reported reason, and treat the optional target as a monitoring reference rather than a universal rule. In this calculator, delivery rate equals 100% minus bounce rate because the model assumes the same sent-email scope for hard and soft bounces.
Marketing - Email Marketing
Use the metric in context
Learn the metric definition, formula, reporting scope, common mistakes and how it connects with the rest of the email funnel.
Read the Email Bounce Rate GuideBrowse all guides
Email Bounce Rate Calculator Frequently Asked Questions
Add hard and soft bounces, divide by emails sent, and multiply by 100.
A hard bounce generally represents a permanent delivery failure, such as an invalid or unavailable recipient address.
A soft bounce generally represents a temporary delivery problem, such as a mailbox or technical condition that may later change.
In this simplified sent-versus-bounced model, delivery rate equals 100% minus bounce rate.
Lower is better. As one current provider reference, Klaviyo labels bounce rates below 1% healthy, but use your own provider guidance, list source and sender history when setting a monitoring threshold.
Move between engagement, deliverability, conversion and financial-return metrics without mixing their definitions.
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Email Bounce Rate Calculator Disclaimer: Results are planning and reporting calculations based on the inputs you provide. Email platforms can use different tracking, attribution and counting rules, so compare figures only when definitions and reporting windows are consistent.