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Baby Formula Can Duration and Monthly Cost Calculator

Calculate formula days per can, cans per month, powder per day, and estimated monthly cost.

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Baby formula can duration calculator

Estimate how long a can lasts and what formula may cost per month. Inventory only: always follow the label.

Use the mixing ratio on your label, e.g. 1 scoop per 2 fl oz or 60 mL
Days per can
6.1
At current daily intake
Cans per 30 days
5
Rounded up
Monthly cost
$175
Cans × price
Powder per day
138.6g
Includes bottle waste
Inventory estimate only: use the exact water and powder amounts on the formula label.

What this estimate does and does not do

This calculator is for planning purchases and monthly cost only. It is not medical advice and it is not a formula-preparation guide. Always follow the exact preparation, storage, and disposal instructions on your formula container. Do not dilute, concentrate, stretch, or alter formula to change cost or can duration.

Formula used

scoops per day = daily prepared volume / prepared volume per scoop
powder per day = scoops per day × grams per scoop × waste factor
days per can = can weight grams / powder per day
cans per 30 days = ceil(30 × powder per day / can weight grams)
monthly cost = cans per 30 days × price per can

Worked example

If a baby drinks 30 fl oz/day, the label uses one 8.8 g scoop per 2 fl oz, and the can contains 850 g:

scoops/day = 30 / 2 = 15
powder/day before waste = 15 × 8.8 = 132 g
with 5% waste = 138.6 g/day
days per can = 850 / 138.6 ≈ 6.1 days

Safety note

CDC-style safety guidance is clear: use the exact amount of water and formula listed on the container, measure water first, and never dilute formula by adding extra water. Prepared formula also has storage and discard time limits. This calculator intentionally does not suggest any alternate mixing ratio.

Assumptions

  • The prepared volume per scoop must use the same unit as daily prepared volume.
  • Can weight is entered in grams, even when prepared volume is in fl oz.
  • The calculator assumes powdered formula, not ready-to-feed or concentrate.
  • Real use varies with appetite, age, growth spurts, spilled bottles, and discarded leftovers.

Frequently asked questions

Can this calculator tell me how to mix baby formula?

No. It is only an inventory and cost calculator. Always use the exact water and powder amounts printed on your formula label.

Why does the calculator ask for grams per scoop?

Powder usage depends on how much powder each scoop contains. The can label usually gives the scoop weight or nutrition per scoop; use the label for your exact product.

Should I dilute formula to make a can last longer?

No. Never dilute formula by adding extra water. That can make a baby sick. Follow the label and medical guidance exactly.

Why include bottle waste?

Prepared formula may be discarded when a baby does not finish a bottle or when storage time limits are reached, so a small waste allowance makes the budget estimate more realistic.