Free calculator

Error Budget Calculator

Free Error Budget Calculator with instant browser-based results and a clear calculation breakdown.

Error Budget Calculator

Calculate your service's error budget based on SLA targets. An error budget represents the maximum amount of time your service can be unavailable or unreliable within a given period while still meeting your SLA commitments.

Target uptime percentage (e.g., 99.9% = "three nines")
The period over which the SLA is measured
Current uptime to calculate remaining error budget
Want to understand the calculation?
See examples, formula notes and limitations.
Read the guide