Formula Feeding Calculator
Estimates recommended formula amount based on new-born or infant age and weight.
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Steps on how to print your input & results:
1. Fill in the calculator/tool with your values and/or your answer choices and press Calculate.
2. Then you can click on the Print button to open a PDF in a separate window with the inputs and results. You can further save the PDF or print it.
Please note that once you have closed the PDF you need to click on the Calculate button before you try opening it again, otherwise the input and/or results may not appear in the pdf.
About formula feeding
The formula feeding calculator determines recommended formula amount by taking into account the age and weight of the baby. It uses the guidance in the below table and considers the 67 calories per 100 mL of standard infant formula.
Please note that these recommendations could be affected if the infant has been diversified and also eats solids.
| Age | Formula |
| Preterm | 180ml per kilogram per day. |
| 5 days to 3 months | 150ml per kilogram per day. |
| 3 to 6 months | 120ml per kilogram per day. |
| 6 to 9 months | 100ml per kilogram per day. |
| 9 to 12 months | 60-90ml per kilogram per day. |
Source: National Health & Medical Research Infant Feeding Guidelines. 2013, page 79.
Whilst the 24h quantity of formula depends largely on the baby’s weight, there are also guidelines on the amount to be given with each feed, and these vary with baby’s age (according to digestive capacity):
| Age | Formula |
| up to 2 weeks | around 70 ml |
| up to 1 month | 75 - 105 ml |
| between 1 and 3 months | 110 - 150 ml |
| between 3 and 4 months | 150 - 220 ml |
| between 4 and 6 months | 200 -210 ml |
| after 6 months | 150-200 ml |
References
Unicef UK. (2007) Health Profesional’s guide.
Stuebe A. (2009) The Risks of Not Breastfeeding for Mothers and Infants Rev Obstet Gynecol; 2(4): 222–231
Specialty: Neonatology
Objective: Determination
No. Of Variables: 2
Article By: Denise Nedea
Published On: April 11, 2020 · 12:00 AM
Last Checked: April 11, 2020
Next Review: April 11, 2025