Tools

SRE Calculators

Browser-based calculators for the metrics every reliability engineer works with. All calculations run locally — nothing is stored or sent.

Availability Calculator

Convert uptime % to downtime duration. Calculate nine-nines targets and SLA compliance windows.

SLO Calculator

Set an SLO target and request volume — get your error budget in requests and time.

Error Budget Calculator

Track remaining error budget and burn rate from real incident data.

MTTR Calculator

Calculate MTTR, MTTF, and MTBF from incident count and total time.

DORA Metrics Calculator

Score your team on all four DORA metrics and see where you fall in the performance bands.