15-Month-Old Toddler Weight & Length Chart
Welcome to toddlerhood! Your 15-month-old is likely walking (though many are still working on it). Growth slows considerably — your toddler's appetite may seem much less than their baby days.
Boy — 50th %ile
Girl — 50th %ile
⚖️ Weight by Percentile
| Percentile | 👦 Boy | 👧 Girl |
|---|---|---|
| 5th Percentile | 19 lbs 3 oz | 17 lbs 14 oz |
| 10th Percentile | 19 lbs 13 oz | 18 lbs 8 oz |
| 25th Percentile | 21 lbs 3 oz | 19 lbs 10 oz |
| 50th Percentile (median) | 22 lbs 11 oz | 21 lbs 3 oz |
| 75th Percentile | 24 lbs 4 oz | 22 lbs 11 oz |
| 90th Percentile | 25 lbs 9 oz | 23 lbs 13 oz |
| 95th Percentile | 26 lbs 11 oz | 24 lbs 11 oz |
📏 Length/Height by Percentile
| Percentile | 👦 Boy | 👧 Girl |
|---|---|---|
| 5th Percentile | 2' 6" | 2' 5.4" |
| 10th Percentile | 2' 6.3" | 2' 5.7" |
| 25th Percentile | 2' 6.7" | 2' 6.1" |
| 50th Percentile (median) | 2' 7.1" | 2' 6.5" |
| 75th Percentile | 2' 7.5" | 2' 6.9" |
| 90th Percentile | 2' 8" | 2' 7.3" |
| 95th Percentile | 2' 8.2" | 2' 7.6" |
📊 What Does My Baby's Percentile Mean?
A baby at the 50th percentile weighs more than 50% of babies the same age. The 25th–75th percentile range is considered average. Any percentile from the 5th to the 95th is medically normal — your baby's growth curve matters more than their rank. A consistently healthy 10th-percentile baby is thriving; a baby who drops from the 70th to the 30th percentile warrants a conversation with your pediatrician.
🌟 Developmental Milestones
- Walks independently
- Says 5+ words
- Points to body parts when asked
- Uses spoon with some spilling
Toddler appetite naturally decreases as growth slows. Focus on offering nutritious foods rather than quantity eaten. Picky eating is developmentally normal at this age.
🍼 Feeding at 15 Month Old
Three meals + 2 snacks. Whole milk: 16 oz/day. Offer a variety of foods even if rejected — it can take 10–15 exposures before a child accepts a new food.
🚨 Talk to Your Pediatrician If…
- Not walking by 15 months
- Fewer than 3 words
- Not pointing at objects of interest
- Loss of previously gained skills
Frequently Asked Questions
How much should a 15-month-old weigh?
WHO median is 10.3 kg (22.7 lbs) for boys and 9.6 kg (21.2 lbs) for girls. Healthy range: roughly 8.7–12.1 kg (19.2–26.7 lbs).
Why is my toddler eating so much less?
Growth slows dramatically after 12 months, so calorie needs decrease. A 15-month-old may need 1,000–1,400 calories per day compared to the rapid-growth period of infancy.
When should a 15-month-old be walking?
By 15 months, most children are walking independently. If your child isn't walking at all by 15 months, discuss it at the well visit — the AAP milestone lists walking by 15 months as a target.
How many words should a 15-month-old say?
The AAP considers 5–10 words typical at 15 months. Receptive language (understanding) is far ahead of spoken words at this age.