SLA Error Budget Calculator

See how much downtime your SLA allows, how fast you are burning budget, and what incident duration keeps you within target.

Uptime target

99.9% allows around 43.8 minutes each month.

Budget period

Monthly budgets expose burn-rate drift quickly.

Budget consumption

Planned maintenance (min)

Incidents / period

Average incident duration (min)

Response performance

MTTD (minutes)

MTTR (minutes)

Current process load: ~1.7 response hours this period.

Budget status

Remaining downtime budget

43m

Allowed 43m, consumed 0m.

Healthy pace

You still have room for about 2 incidents at current duration.

Allowed downtime

43m From your SLA target and period length.

Consumed downtime

0m 0m maintenance + 0m incidents.

Burn rate

0% Keep this under 100% to stay within target.

At this run-rate, you can still absorb ~2 incidents of this size.

Response overhead this period: ~1.7 hours.

Maintenance

Incidents

Remaining

43m

Next step

Automated weekly scans, uptime checks as often as every minute, and clear fix priorities — so nothing slips through the cracks.

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