Tool
Error budget burn-rate calculator
Enter an SLO target, its window and the error rate you are seeing (or good and total events). Get the burn rate, the budget left, the time until it runs out and the response it usually calls for. The inputs stay in the URL, so you can share the result.
Calculate your burn rate.
Burn rate = observed error rate ÷ (100% − SLO target). Time to exhaustion = SLO window ÷ burn rate.
What each burn rate means.
| Burn rate | 30-day budget gone in | What it usually means |
|---|---|---|
| 1 | 30 days | On pace |
| 2 | 15 days | Slow leak; open a ticket |
| 6 | 5 days | Serious; act within hours |
| 14.4 | about 2 days | Urgent; act now |
| 36 | 20 hours | Severe outage |