How to Use the Habit Streak Calculator
Enter your habit start date and the date your current streak began. If you've never missed a day, enter the same date for both. Optionally, enter your previous personal best. You'll see your current streak, best record, total days tracked, and completion rate.
How to Enter Missed Days
- Never missed โ enter the same date for both habit start and streak start.
- Missed a day โ enter the day after your last miss as the streak start date.
- Previous best โ if you had a long streak before that was reset, enter it to keep a record.
Habit Formation Tips
Research suggests it takes an average of 66 days to form a habit (not the popular 21-day myth). The first 21 days are the most fragile โ set a small, specific reward for reaching day 30. If you miss a day, never miss two in a row.
Frequently Asked Questions
It's your current streak days divided by total days since the habit started, expressed as a percentage. A high rate means you've been very consistent across the whole journey.
Estimate as closely as you can. Or if you use a habit tracking app, check the last recorded miss in the calendar view.
This calculator works on a per-day basis. Track it as a daily habit โ did you do it at least once today? That counts as a full day.