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* A guess: I'm thinking 40 pounds. * During the toddler years (1 to 3 years of age) the average child should gain 4-6lbs a year. By 30 months the average toddler weighs about 28lbs. * There is no 'average' weight for a 3-year-old because weight is related to height and body composition, rather than age. For in-depth information about weight in relation to height, and to see the distribution of weights and heights of children at various ages, please see the page link, further down this page, listed under Related Questions.

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14y ago
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Q: What is the average weight of a 3-year-old?
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