Baby Formula Quantity Calculator

Work out baby formula quantity instantly with clear inputs, formula shown and shareable results.

About Baby Formula Quantity Calculator

The standard guide is about 150 ml of made-up formula per kilogram of body weight per day, split across the number of feeds, with standard formula at roughly 0.67 kcal per ml. Feeding by weight rather than by tin instructions is what keeps intake right as a baby grows, since the daily volume changes every few weeks.

Formulas

Daily volume

daily ml = weight in kg x ml per kg per day

Per feed

per feed = daily volume / number of feeds

Worked example

With the default values below, Baby Formula Quantity Calculator returns Formula per day of 750. Change any input above and every figure here is recalculated in your browser.

Inputs used

Baby's weightminimum 1 kg: 5 kg
Feed volume per kg per dayaccepts 50–220 ml: 150 ml
Feeds per dayminimum 1: 6

Results

Formula per day: 750 ml
Volume per feed: 125 ml
Scoops per day at one per 30 ml: 25.0
Energy provided: 503 kcal

Step by step

1Values used
2Daily volume
3Per feed
4Formula per day= 750 ml
5Volume per feed= 125 ml
6Scoops per day at one per 30 ml= 25.0
7Energy provided= 503 kcal

Assumptions and limits

The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax or compounding frequency into account.
Figures are rounded for display to 1 decimal place, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is the Baby Formula Quantity figure worked out?

daily ml = weight in kg x ml per kg per day. The standard guide is about 150 ml of made-up formula per kilogram of body weight per day, split across the number of feeds, with standard formula at roughly 0.67 kcal per ml.

Why does this matter?

Feeding by weight rather than by tin instructions is what keeps intake right as a baby grows, since the daily volume changes every few weeks.

What do I need to enter?

Enter baby's weight, feed volume per kg per day, feeds per day. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.