How Many Pills Should Be Left?
Expected Pills Left = Pills Received − (Days Since Start × Pills per Day)
"Days since start" counts the days whose doses are already done. If you started on the 1st and it's the morning of the 11th, ten days of doses have been taken. At one pill a day from a bottle of 30, you should have 20 left before today's dose.
| Started with | Per day | Days elapsed | Expected left |
|---|---|---|---|
| 30 | 1 | 10 | 20 |
| 60 | 2 | 12 | 36 |
| 90 | 1 | 45 | 45 |
| 30 | 0.5 | 20 | 20 |
Comparing With Your Actual Count
Think of this step as a pill counter check: you count, and the calculator tells you whether that count is what it should be.
Pour the tablets onto a clean, light-colored surface, count them in twos or fives, and enter the number. Count before taking that day's dose. The calculator compares it with the expected number and turns the difference into days of doses:
- Matches: you're on schedule.
- More than expected: usually missed doses, or the bottle had a few extra. With more pills, your supply lasts longer, and the new run-out date is shown.
- Fewer than expected: could be extra doses, a dropped tablet, an earlier start date than you remember, or a miscount. If you'll run out before the refill can be filled, call the pharmacy early. They can often help.
A different count is information, not a failing. If you're missing doses regularly, your pharmacist or prescriber may suggest a pill organizer, a reminder, a different time of day or a once-daily option.
Tips for Counting Accurately
- Count at the same time of day each time, before that day's dose.
- Include pills already loaded into a weekly organizer.
- Use the fill date on the label as the start date if you began the day you picked it up.
- For split tablets, count each half as 0.5.
Using the Count to Plan the Refill
Your count is the most reliable basis for a run-out date, more reliable than the label, because it includes everything that's actually happened. Choose Track in My Medications and the count is saved with today's date. Each day after, RefillDay subtracts your daily dose, so the list stays current without re-counting.
For the full refill picture (planning date, reminders and printing), use the pill refill date calculator. To understand why your insurance might still say "too soon" even when you're low, see the refill too soon calculator.