PillRem
Liquid medicine calculator
Work out how many days a bottle lasts from its volume and your dose in millilitres.
These calculators do simple arithmetic. They do not give medical advice. Follow your prescription, and ask your doctor or pharmacist before changing how you take a medication.
More calculators
Refill date
When will I run out, and when should I order more?
Dose times
Every 6, 8 or 12 hours: at what times?
Times a day
Twice or three times a day: at what times?
Next dose
I took it at 9:00. When is the next one?
Days of supply
How many days does a pack last?
Tablets to months
How many months do 90 or 180 tablets last?