Baremetrics
SaaS metrics and subscription analytics dashboards.
Visit tool →Unsubscribe Rate Calculator
Unsubscribes ÷ emails delivered × 100 for specific campaign batches.
Calculator
Unsubscribe rate
0.25%
Results are simplified estimates for educational purposes only and should not be treated as financial, accounting, legal, or tax advice. See our disclaimer for details.
Overview
Use after cadence, topic pivot, or list import when you need a blunt health check. Complaint rate still matters separately.
Formula
Unsubscribes ÷ emails delivered × 100. Delivered excludes hard bounces if your numerator does too.
Example calculation
Using the default example values from the JSON seed for this tool:
- Unsubscribes (period)
- 210
- Emails delivered
- 85000
Result: 0.25% (Unsubscribe rate)
How to interpret this result
Unsubscribes per delivered mailing as a percentage—list hygiene and topic fit drive this.
Use the same “delivered” definition your ESP reports.
Compare cadence changes with matched send volumes.
When to use this calculator
- When you measure unsubscribes against delivered emails for each send
- After you change cadence or topic mix and watch list reaction
- When deliverability issues might be tied to poor engagement
- When you compare two campaigns with the same denominator rules
Rule of thumb
Burst sends and list hygiene campaigns can spike unsubscribes without meaning the brand is doomed—compare with context.
Terms used in this calculator
- Conversion rate
- Share of a clear baseline group—visits, sessions, leads—that finished the goal you named.
- CPC
- What you paid on average for one ad click.
- ROI
- Return compared to everything you counted as investment—often wider than ads alone when people say "full ROI."
Common mistakes
- Using list size instead of delivered emails in the denominator.
- Treating bounces like unsubscribes.
- Comparing bursts with different cadence without noting sends/week.
What to do next
Combine with sponsorship or revenue-per-send tools when churn is mostly fatigue.
How to improve this result
- Segment cadence: daily for news, monthly for promos when fatigue shows.
- Align subject lines with body content so readers do not feel tricked.
- Run preference centers before people only see “unsubscribe.”
Recommended tools
Useful tools for this calculator
These tools are related to the topic of this calculator. Some links may be partner links.
ChartMogul
Subscription analytics for revenue, churn, and cohort reporting.
Visit tool →ConvertKit
Partner linkCreator-focused email marketing and audience growth tools.
Visit tool →MailerLite
Partner linkEmail marketing for newsletters, automations, and simple landing pages.
Visit tool →FAQ
- Bounced emails in denominator?
- Match ESP definitions—typically delivered excludes permanent bounces.
- Spam complaints counted?
- Not here—track complaints per ESP dashboards separately.
- High unsub one week—panic?
- Context with send volume bursts, welcome series ramps, cold reactivation fires.
- Compare to subscribe rate?
- Net list growth combines both—instrument separately.
- Preference centers help?
- They often cut unsubscribes by offering lighter cadence—not captured here.
Related calculators
Email List Value Calculator
Monthly planning value from subscribers × average monthly revenue each monetized subscriber contributes.
Open calculator →Email Marketing ROI Calculator
Estimated ROI comparing email-attributed revenue with the cost of running email marketing.
Open calculator →Newsletter Revenue Calculator
Rough dollars per broadcast from subscribers, opens, clicks among openers, and dollars per outbound click.
Open calculator →Affiliate disclosure
Disclosure: Some links on this page may be affiliate links. If you sign up or make a purchase through these links, FounderCalc may earn a commission at no extra cost to you. We only recommend tools that are relevant to the calculator topic.