Error Budget Burn Rate Calculator

Calculate SLO error budget, burn rate and projected exhaustion from traffic, errors, objective and time window.

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This calculator is for SRE incident review and alert tuning when you need to translate failures into budget impact. Enter the SLO, period, observed window, requests and bad events.

What it reports

The output shows allowed bad events, observed error rate, consumed budget, burn rate versus the period budget and a projected exhaustion time if the current rate continues.

Scope

The math assumes request-based availability and a constant observed rate. Your production alert policy may use rolling windows, multi-window burn alerts or latency-specific SLIs.