Instant results
SLA Uptime Calculator
Calculate SLA uptime percentages, allowed downtime windows, and error budget remaining — from two nines to five nines and beyond.
Free foreverReal-time calculationError budget trackingNo credit card
How it works
1
Set your SLA target
Enter your target uptime percentage (e.g., 99.9%) and choose your monitoring period — monthly, quarterly, or annual.
2
Enter downtime data
Add the number of incidents and total downtime minutes for the period to see your actual uptime and error budget status.
3
Track your budget
See allowed downtime, actual uptime, and how much error budget remains. Use the reference table to compare SLA tiers.
Monitor SLA compliance at scale
Create a free account to track SLA targets across services, get alerts when error budgets are running low, and generate compliance reports for stakeholders.