Insulin
Humalog Day Supply Calculator
Generic: insulin lispro · 100 units/mL · 10 mL vial (1,000 units) or 3 mL KwikPen (300 units)
Worked example
Inject 8 units before meals three times daily plus 12 units at bedtime
Dispensed
2 KwikPens (600 units)
Daily use
36 units/day (8+8+8+12)
17
days supply
- Total units = 2 pens × 300 units = 600 units
- Daily use = 8 units × 3 meals + 12 units at bedtime = 36 units/day
- Days supply = 600 ÷ 36 = 16.7 → round to 17 days
Alabama Days Supply Cheat Sheet
One printable page with the days supply math Alabama pharmacies check at the bench and on every insurance claim.
One-time download$1
- Tablets, capsules, and tapers using the whole number rounding Alabama pharmacies expect
- Insulin vials and pens, with units per package worked out for you
- Inhalers, puffs, eye drops, and mL to drops conversions
- The same math taught in the ALBOP approved technician training program from Dalton Pharmacy
The days supply calculator stays free. Built by Tyler Dalton, PharmD.
Meet your Alabama training requirement
Days supply is the math you will use at the bench. Alabama Pharm Tech is ALBOP-approved training that walks you through this math step by step, plus everything else you need to finish on time.
- ALBOP-approved training program
- Start today, finish on your schedule
- Pharmacy math practice with worked solutions
- One payment of $199, everything included
Product details
- Brand: Humalog
- Generic: insulin lispro
- Strength: 100 units/mL
- Typical package: 10 mL vial (1,000 units) or 3 mL KwikPen (300 units)
- Example NDC: 00002-7510-01
- Calculator tab: Use the insulin section in our tool
Pharmacy tech tips
- Humalog is rapid-acting — add all meal and correction doses for daily units.
- Carb-counting patients may vary meal doses; confirm with pharmacist if SIG is unclear.
Frequently asked questions
Humalog day supply with multiple daily doses?
Add every listed dose for the day, then divide total units dispensed by that daily total.
Related Insulin guides
Run the numbers with a free calculator
Same math, done for you. Enter the quantity and sig and get the day supply in seconds.
- Insulin Day Supply CalculatorVials and pens converted to units, divided by total daily units
- Refill CalculatorNext refill date, run out date, and the earliest date insurance will pay
- Free ToolsCalculators and quick-reference guides for pharmacy technicians
- Days Supply CalculatorCalculate days supply for tablets, liquids, inhalers, insulin, and eye drops
- Eye Drop Day Supply CalculatormL to drops, one eye or both, with bottle size quick reference
- Tablet Day Supply CalculatorPills and capsules, including every other day and weekly sigs
- mg to mL Dose CalculatorConvert a milligram dose to millilitres and get the liquid days supply
- Cream Day Supply CalculatorGrams per day with a fingertip unit chart by body area
- Inhaler Day Supply CalculatorActuations divided by puffs per day for albuterol and maintenance inhalers