Imran, desk-heavy week
Days completed 9, Target days 21
With days completed 9, target days 21, the calculator shows a planning figure. Illustration only, not advice.
Habit Streak Calculator
Count streak days toward a target such as 21 days.
Your details
Fill the boxes, then calculate.
What is this calculator?
Count streak days toward a target such as 21 days.
How it works
- Enter the figures you know.
- We apply a published or common planning method.
- Read the limitations under the result.
Common questions
What is the habit streak calculator?
See how far you are through a streak you chose. Use it as a guide, not a diagnosis.
Does this replace my GP?
No. Calculators stay in the browser and cannot see you.
Can I share the number?
Share fitness and fun results if you like. Keep lab and alcohol impairment numbers private.
Example scenarios
Zara, half-term outdoors
Days completed 11, Target days 25.6
With days completed 11, target days 25.6, the calculator shows a planning figure. Illustration only, not advice.
Hassan, after a late finish
Days completed 7, Target days 16.4
With days completed 7, target days 16.4, the calculator shows a planning figure. Illustration only, not advice.
Understanding your results
Treat this as a snapshot for habit streak, not a verdict. If the number worries you, take it to your GP rather than stacking new rules on yourself.
About this result
Guidance only. Calculations run in your browser. Numbers are estimates, not a diagnosis.
How we calculate
Days done divided by target days.
Sources
Method described on this page. We link NHS or GOV.UK guidance where it applies.
Limitations
- Illustration only.
- Not personal medical advice.
Spotted an error? Request a correction or read our editorial policy.