Sobriety Calculator
Enter your sobriety date to see exactly how long you've been sober, and how close you are to your next milestone.
How this is calculated
This tool counts the exact number of calendar days between your sobriety date and today — the same leap-year-safe day count used across ZenCountdown. Once you're past the common early milestones (30, 60, 90 and 180 days), it switches to tracking your actual yearly anniversary date, computed from the real calendar rather than a rounded 365-day estimate, so it stays accurate no matter how many years you've been counting.
Frequently asked questions
What counts as day one?
Day one is whatever calendar date you enter — most people use the day they stopped. Conventions differ on whether that first day itself counts as a full day, so use whichever your program or app already tracks; this calculator just counts the days between that date and today.
What milestones does this track?
The common recovery milestones: 30, 60, 90 and 180 days, then your 1-year anniversary and every year after that — the same set most 12-step programs and recovery apps mark with chips or badges.
Is my sobriety date stored anywhere?
No. The date you enter never leaves your browser — nothing is saved, logged, or sent to a server, and reloading the page clears it.