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Weight Percentile Calculator

Health
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Compares a child's weight to others of the same age and gender using growth charts.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Child's Weight, Child's Age (Months), and Gender in the units shown.

Step 2

Read Weight Percentile in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Newborn Male

Child's Weight: 7.5 lbs; Child's Age (Months): 0; Gender: Male

Weight Percentile: 5 percentile

6-Month-Old Female

Child's Weight: 16 lbs; Child's Age (Months): 6; Gender: Female

Weight Percentile: 50 percentile

1-Year-Old Male

Child's Weight: 22 lbs; Child's Age (Months): 12; Gender: Male

Weight Percentile: 90 percentile

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Important

Use the result as an estimate and confirm any medical decisions with a qualified professional.