Error Budget Calculator
Track SLO burn in real time. See remaining error budget, burn rate vs ideal pace, and projected end-of-period SLO at the current rate.
Burn rate is under the ideal pace. Safe to ship features at normal velocity.
Total Error Budget
43m
for the 30-day period
Consumed
20m
46.3% of budget
Remaining
23m
53.7% left
Budget Burn
Projected end-of-period
Projected total downtime
40m
if current burn rate continues
Projected actual SLO
99.907%
vs target of 99.9%
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Error Budgets in One Paragraph
An error budget is the operationalized version of an SLO. If your SLO says 99.9% availability over 30 days, you have permission to be unavailable for 0.1% of that time — about 43 minutes. While the budget has room, your team ships features. When the budget runs out, the team’s focus shifts to reliability work until the next period starts. Error budgets remove the political negotiation around "is the system reliable enough to deploy this" and replace it with a number.
Why Burn Rate Matters More Than Absolute Downtime
A 5-minute outage on day 2 of a 30-day period is very different from a 5-minute outage on day 28. The first one signals you may exhaust the budget well before the period ends; the second is no longer recoverable but also not predictive. Burn rate normalizes this: it tells you whether your current consumption pace will get you to the end of the period within budget.
A burn rate of 1.0 means you are spending exactly at the ideal pace. Above 1.0 means you will run out before the period ends. Below 1.0 means you have spare budget. Many mature SRE teams alert primarily on burn rate thresholds rather than absolute downtime.
From Tracking to Automation
Tracking error budget burn is half the battle. The other half is reducing the time it takes to detect, investigate, and resolve the incidents that consume it. Uptimes.ai is an AI SRE agent that produces a root cause report in under three minutes and can execute pre-approved remediations automatically — turning what would have been a 30-minute incident into a sub-minute one. That is the most direct way to extend your error budget.