SLA Downtime Calculator
Convert uptime targets into concrete downtime budgets over your selected period.
- Percent uptime to downtime conversion
- Custom window (days) support
- Per-day allowance insight
Reliability Planning Calculators
Five focused tools to set service targets, track incident response speed, monitor burn risk, estimate impact, and review rotation pressure.
Error Budget Calculator
Track allowed failures, consumed budget, and burn rate from real request volumes.
- SLO and request volume planning
- Remaining error budget view
- Elapsed-window burn rate
Incident Cost Calculator
Estimate monthly and annual cost impact from response labor and business downtime.
- Responder-hour cost modeling
- Revenue impact estimate option
- Annualized cost summary
On-Call Load Calculator
Quantify interrupt load and recovery effort per engineer in a rotation schedule.
- Pages and handling-time input
- Context-switch overhead included
- Risk label for review meetings
MTTR Calculator
Estimate MTTD, MTTA, MTTR, MTBF, and downtime share from incident volume and response times.
- Detection, acknowledgement, and repair inputs
- End-to-end recovery time output
- Availability estimate from downtime totals
OpsKit FAQ
Which calculator should I start with?
Start with SLA Downtime for target-setting, then use MTTR and Error Budget to track response speed and reliability burn.
How accurate is incident cost modeling?
It is directional. Use it to compare scenarios and improve prioritization, not to produce final accounting numbers.
How often should we recalculate on-call load?
Most teams should refresh it after rota changes, alerting policy shifts, or major product launches.
Related Kits
Use FocusKit to protect execution blocks after incident-heavy weeks, SleepKit for shift recovery planning, and BudgetKit for cost tradeoff planning. Browse the full directory in All Kits.