Medication Adherence Calculator
Calculate your medication compliance rate by tracking pills dispensed vs pills remaining over time.
Medical Disclaimer
This calculator is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about your health. Never disregard professional medical advice or delay seeking it because of results from this tool.
Inputs
Results
Adherence Rate
89.3%
Days of Missed Doses
3 days
How to Use This Calculator
- Enter the number of Pills Dispensed from your most recent prescription fill.
- Count and enter the Pills Remaining in the bottle right now.
- Enter Days Since Refill — how many days have passed since you picked up this prescription.
- Enter the Days Supply — how many days the prescription is intended to last.
- Review your Adherence Rate (%), Pills Taken vs Expected, and Days of Missed Doses to identify patterns and discuss with your pharmacist or healthcare provider.
How the result changes with Days Since Refill
| Days Since Refill | Adherence Rate | Days of Missed Doses |
|---|---|---|
| 37 | 67.6% | 12 days |
| 128 | 19.5% | 103 days |
| 238 | 10.5% | 213 days |
| 329 | 7.6% | 304 days |
What each input means
- Pills Dispensed
- Total number of pills dispensed in your prescription.
- Pills Remaining
- Number of pills currently remaining in the bottle.
- Days Since Refill
- Number of days since you picked up this prescription.
- Days Supply
- Number of days the prescription is intended to last.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersPills Dispensed = 30, Pills Remaining = 5, Days Since Refill = 28, Days Supply = 30 = 4 input(s) provided
- Calculate Adherence RateAdherence Rate89.3 = 89.3%
- Calculate Days of Missed DosesDays of Missed Doses3 = 3
- Calculate Pills TakenPills Taken25 = 25
- Calculate Expected Pills TakenExpected Pills Taken28 = 28
Related Calculators
The questions that sit next to this one — chosen by subject, including calculators filed under a different category.
Medication Cost Per Day Calculator
Calculate the daily, weekly, monthly, and annual cost of your medication regimen across up to three medications.
PharmacyHalf-Life Washout Calculator
Calculate the time required for a medication to be effectively cleared from your system (below 5% of steady-state levels).
PharmacyPill Splitting Savings Calculator
Calculate potential cost savings from splitting higher-dose tablets in half instead of purchasing lower-dose pills.
More in Medical & Clinical.