Patient-Centered Refill Date & Pill Count Calculator

Last fill, quantity, and doses per day — run-out date plus days early or late

Prescription date

Sun
Mon
Tue
Wed
Thu
Fri
Sat
Last fill Runs out Today As-of

Prescription details

Results

Select a fill date, quantity, and doses per day. The run-out date and early/late variance will appear here.
Variance
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Days supply—
Days remaining—
Next fill due—
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Enter quantity remaining to compare observed pill count with expected supply.
View calculation details
Medication—
Start / last fill—
As-of date used—
Quantity prescribed—
Doses per day—
Days supply (qty ÷ doses/day)—
Days elapsed since start—
Expected days remaining—
Expected run-out date—
Next fill due—
Quantity remaining—
Pill-count days remaining—
Pill-count variance (days)—
Calculated at—
Bridging Rx