How much formula does my baby need?

A general rule is 2.5 oz of formula per pound of body weight per day, up to 32 oz maximum. Use our Baby Formula Calculator for a personalized estimate based on your baby's exact weight and age.

When should babies start solid foods?

Most babies are ready to start solid foods around 6 months of age when they can sit with support, have good head control, and show interest in food. Use our Solid Food Readiness Checker to assess your baby.

How long can breast milk be stored?

Freshly pumped breast milk lasts 4 hours at room temperature, up to 4 days in the refrigerator, and up to 6 months in a freezer. Use our Breast Milk Storage Calculator for exact timelines based on your storage method.

10 Free Tools, Zero Sign-Up Required

Free Baby Calculators and Feeding Tools

Practical, evidence-based calculators to answer your most common baby feeding questions. From formula amounts to solid food readiness, get clear answers in seconds.

Feeding Tools

Baby Feeding Calculator

How much formula or breast milk does your baby need? Get personalized amounts by weight and age in seconds.

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Baby Formula Calculator

Calculate exact ounces of formula per feeding and per day based on your baby's current weight.

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Starting Solids Tools

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Solid Food Readiness Checker

Answer 8 quick questions to find out if your baby is developmentally ready to start solid foods.

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Scheduling Tools

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Sleep and Feeding Schedule Builder

Create a personalized daily routine with feeding times, nap windows, and wake times for your baby's age.

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Safety Tools

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Allergen Introduction Tracker

Track when you introduce each of the Top 9 allergens and note any reactions. Safer early introduction made easy.

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Breastfeeding Tools

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Breast Milk Storage Calculator

How long is pumped breast milk safe? Get exact storage timelines for room temperature, fridge, and freezer.

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Growth Tools

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Baby Weight Percentile Calculator

Is your baby growing on track? Compare their weight to WHO growth charts and get a healthy range assessment.

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Adjusted Age Calculator

For premature babies: calculate your baby's corrected developmental age and track milestones accurately.

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Newborn Tools

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APGAR Score Calculator

Understand your newborn's APGAR test score. Enter the 5 criteria and see what the result means for your baby.

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Fun Tools

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Baby Eye Color Predictor

Curious what color your baby's eyes will be? Enter both parents' eye colors to see the genetic probability.

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Evidence-Based

All calculators and recommendations are based on AAP, CDC, and WHO infant feeding guidelines.

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Always Free

Every tool on this page is completely free. No sign-up, no subscription, and no hidden fees.

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Works on Any Device

Use these tools on your phone, tablet, or computer. Perfect for checking during those midnight feeds.

Common Questions About Our Tools

How accurate are these calculators?

Our calculators use formulas based on AAP and WHO guidelines for infant nutrition. They provide evidence-based estimates, but every baby is different. Always use these as a starting point and follow your baby's hunger and fullness cues. Consult your pediatrician for personalized guidance.

Do I need to create an account to use the tools?

No account, sign-up, or payment is required. All tools are completely free and work instantly in your browser.

How often are the tools updated?

We review all tools whenever major pediatric guidelines change (such as AAP, CDC, or WHO updates). We are committed to providing current, accurate information.

Can I use these calculators for a premature baby?

For premature babies, use our Adjusted Age Calculator first to find your baby's corrected developmental age. Then use that corrected age in other calculators for more accurate results.