Baby Weaning Calculator

What is a Baby Weaning Calculator?

The Baby Weaning Calculator is an online tool that automatically calculates the recommended start dates for early, middle, late, and complete weaning stages based on your baby’s date of birth and feeding method. It provides guidance on optimal weaning timing based on WHO (World Health Organization) and AAP (American Academy of Pediatrics) guidelines, tailored to your feeding method.

Parents starting weaning for the first time may feel overwhelmed about when to start and how to progress through each stage. With this calculator, you can check your baby’s current weaning stage and plan ahead for a systematic weaning journey. It provides differentiated start times for breastfeeding, formula feeding, and mixed feeding to help you create a weaning plan that suits your baby.

When to Use This Calculator

• Preparing to Start Weaning – When your baby is approaching weaning age, identify the exact start date in advance and purchase weaning supplies.
• Checking Current Stage – When you want to know exactly which weaning stage your baby is in and learn about the characteristics and recommended foods for that stage.
• Planning Next Stage Transition – Check the D-Day countdown for middle, late, and complete stages to prepare for changes in ingredients and cooking methods.
• Customized Planning by Feeding Method – Since recommended start times differ for breastfeeding, formula, and mixed feeding, confirm the accurate schedule for your baby.
• Preparing for Pediatric Consultations – Before consulting with your pediatrician about weaning, organize your baby’s current stage and recommended schedule for efficient discussion.
• Parenting Schedule Management – Record weaning stage start dates on your calendar to help manage your parenting schedule systematically.

Key Features

• Real-time Auto Calculation – Simply enter the date of birth and all weaning stage timings are instantly calculated without clicking any buttons. Changing the feeding method also recalculates automatically.
• Customized Start Dates by Feeding Method – Provides differentiated start dates according to WHO and AAP recommendations: breastfeeding (6 months), formula (5 months), and mixed feeding (5.5 months).
• Automatic Current Stage Detection – Automatically determines and displays which weaning stage your baby is currently in based on today’s date. If weaning hasn’t started yet, it shows the remaining days.
• D-Day Countdown – Displays the number of days remaining or passed for each stage start date in D-Day format for intuitive understanding.
• Detailed Stage Guides – Provides practical information including food texture, serving size, feeding frequency, and recommended ingredients for the current stage.
• Auto Data Saving – Your input is automatically saved to your browser, so you don’t need to re-enter information on your next visit.

How to Use

1. Enter Baby’s Name (Optional) – Entering your baby’s name will display it in the results. Calculation works normally even without a name.
2. Select Date of Birth – Choose your baby’s date of birth from the calendar. Results are calculated automatically as soon as you select a date.
3. Select Feeding Method – Choose from breastfeeding, formula feeding, or mixed feeding. The recommended weaning start time varies depending on the feeding method.
4. View Results – On the right side (below on mobile), you’ll see the current weaning stage, stage timeline, and current stage guide.
5. Use Detailed Information – Check the food texture, amount, frequency, and recommended ingredients in the current stage guide and use them for weaning preparation.

Weaning Stage Details

Early Weaning Stage (4-6 Months)

The early weaning stage is when your baby first encounters food other than breast milk or formula. The main goal at this stage is adapting to eating from a spoon rather than nutritional intake.

• Food Texture: Thin, runny purees (single-grain cereal consistency)
• Serving Size: 1-3 oz (30-80ml)
• Frequency: Once a day
• Milk: Maintain 24-34 oz (700-1,000ml)
• Recommended Foods: Rice cereal, potato, sweet potato, zucchini, broccoli, banana
• Note: Introduce new foods 3-5 days apart to monitor for allergic reactions.

Middle Weaning Stage (7-8 Months)

The middle weaning stage is for experiencing various ingredients and adapting to the texture of mashed foods. This is when protein sources like meat and eggs are formally introduced.

• Food Texture: Thicker purees, mashed foods
• Serving Size: 3-4 oz (80-120ml)
• Frequency: Twice a day
• Milk: 20-27 oz (600-800ml)
• Recommended Foods: Chicken, beef, egg yolk, tofu, carrots, cabbage, apple, pear
• Developmental Point: Baby tries to pick up food with fingers and attempts drinking from a cup.

Late Weaning Stage (9-11 Months)

The late weaning stage is when gum chewing practice begins. Soft solid foods are introduced and finger foods are provided to build the foundation for self-feeding.

• Food Texture: Soft solids, finely minced foods
• Serving Size: 4-5 oz (120-150ml)
• Frequency: 3 times a day
• Milk: 14-20 oz (400-600ml)
• Recommended Foods: White fish, egg white, cheese, yogurt, various vegetables and fruits
• Finger Foods: Cooked carrot sticks, banana slices, soft bread pieces for self-feeding.

Completing Weaning Stage (12-24 Months)

The completing weaning stage is the transition to toddler foods. Most foods can be eaten with the family, experiencing various textures and flavors.

• Food Texture: Regular table food, soft regular meals
• Serving Size: 5-7 oz (150-200ml)
• Frequency: 3 meals + 1-2 snacks
• Milk: Under 14 oz (400ml), can switch to whole milk
• Recommended Foods: Most foods acceptable (chop nuts finely)
• Foods to Avoid: Honey (prohibited under 1 year), whole milk (after 1 year), raw foods, hard nuts

Signs of Readiness for Weaning

Along with age, it’s important to check your baby’s developmental signs. Your baby is ready to start weaning when the following signs appear:

• Can hold head up well and sit with support
• Shows interest in food that adults are eating
• Opens mouth when spoon approaches
• Tongue-thrust reflex (pushing food out with tongue) has diminished
• Has doubled their birth weight

Frequently Asked Questions