Certificate Expiration Tracker Calculator
Plan SSL/TLS certificate lifecycle management: renewal workload, annual costs, risk scoring, and alert thresholds based on your certificate portfolio.
Inputs
%
Results
Renewals per year
20
Annual cert cost ($)
$1,300
Expiring in 30 days2
Expiring in 90 days5
Annual renewal effort (hrs)10
Expiration risk score18
Alert before expiry (days)30
Validity Days360
How to Use This Calculator
- Enter total certificates in your environment and their validity period (months).
- Select certificate type (DV, OV, EV, or internal CA) and enter wildcard certificates (%).
- Review annual renewals needed, certificates expiring in 30 and 90 days, and annual renewal hours.
- Automate renewal with ACME protocol (Let's Encrypt) or SCEP for internal PKI where possible.
- Set calendar alerts 60 days before expiration -- expired certs cause production outages.
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