Boys Weight chart for Toddlers 18 month old

Weight chart for 18-Month-Old boys

Weight at 18-Month-Old: context, percentiles, and what they mean for toddler boys.

Weight percentiles for 18-Month-Old boys

According to CDC growth chart data, here is how weight breaks down for toddler boys at 18-Month-Old:

• 5th percentile: 9.7 kg (21.5 lbs)

• 25th percentile: 10.8 kg (23.8 lbs)

• 50th percentile (median): 11.6 kg (25.6 lbs)

• 75th percentile: 12.5 kg (27.6 lbs)

• 95th percentile: 13.9 kg (30.7 lbs)

Growth chart percentiles describe where your child's measurement sits among toddler boys measured in the CDC reference study. At the 50th percentile, the measurement is right at the middle of the typical range.

Weight and development for toddler boys

During the second year of life, weight gain slows noticeably compared to the first year, which can concern some parents. Toddlers are typically gaining around 1-2 kg over the entire second year, compared with 6-7 kg in the first. This slowdown is entirely normal and reflects increasing physical activity and a maturing metabolism.

Toddler appetite and growth slowdown

Many parents are surprised by the apparent reduction in appetite in the second year compared with infancy. This is normal: growth has slowed significantly and caloric needs per kilogram of body weight are lower than in the first year. A toddler who was eating well at 8 months and suddenly seems less interested in food at 14 months is following a normal pattern.

A healthy approach to toddler feeding

Offering a variety of foods without pressure, eating together as a family, and avoiding using food as reward or punishment supports healthy eating patterns that will serve the child well long-term. Repeated exposure to a new food - typically 10-15 exposures - is the most evidence-based way to increase acceptance of unfamiliar foods in toddlerhood.

Frequently asked questions

What is a healthy weight for this age?

The percentile table on this page shows the full range of typical weights. All values from the 5th to the 95th percentile are within normal limits. Weight at a single point in time is less informative than a consistent growth pattern - a child who has always been at the 25th percentile and remains there is growing normally.

How much weight does a child gain per year?

After infancy, the rate of weight gain slows considerably. Toddlers typically gain 1.5-2 kg per year, preschoolers around 2 kg per year, and school-age children 3-5 kg per year. During puberty, the rate accelerates significantly - 4-8 kg per year is common during the peak growth phase.

Should I be concerned if my child's weight has stayed the same for a few months?

Brief weight plateaus are common in growing children and are usually not a cause for concern if the child appears healthy, has a good energy level, and is growing in height. A plateau of 3 months or more, particularly if accompanied by any health concerns or a fall across percentile lines, is worth discussing at the next GP or child health check.

Data sources and methodology

The percentile ranges on this page are drawn from CDC growth chart data from the National Center for Health Statistics and WHO Child Growth Standards (for children under 5). CDC data published May 30, 2000, with 2022 extended BMI tables. Percentiles are modelled using the LMS method (Box-Cox transformation), which accounts for the skewed distribution of measurements at each age. All measurements are given in metric units with imperial equivalents.

For personalised guidance, consult a paediatrician or healthcare provider who can assess your child's measurements in the context of their full growth history.