Pregnancy Due Date Calculator
Estimate a due date from the start of the last period.
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Enter a child’s sex, age, height, and weight for approximate educational height and weight percentiles, BMI, and BMI-for-age category from age 2. Optionally add parent heights for a mid-parental adult-height estimate. Results use simplified reference curves—not official WHO or CDC growth charts—and are not medical advice.
Percentiles and BMI-for-age use simplified reference curves for ages 2–18. They are not official WHO or CDC growth-chart values and must not be used for diagnosis, treatment planning, or clinical decisions.
Select the child’s sex and unit system, then enter age (years and months), height, and weight. Optionally enter both parent heights for an adult-height estimate. Review approximate percentiles, growth bands, and BMI-for-age in the results panel.
Example: an 8-year-old boy at 127 cm and 25 kg may show approximate height and weight percentiles near the middle of the reference range, with BMI-for-age in a typical band. Results vary with the simplified curves used here—not clinical charting software.
The calculator compares entered height and weight to simplified sex-specific reference curves for ages 2–18 to estimate approximate percentiles and BMI-for-age category. Optional parent heights use the mid-parental height formula for an adult-height estimate with a typical range. These curves are educational approximations—not official WHO or CDC growth charts—and may differ from clinical tools.
Percentiles and BMI-for-age use simplified reference curves for ages 2–18. They are not official WHO or CDC growth-chart values and must not be used for diagnosis, treatment planning, or clinical decisions.
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It estimates height and weight percentiles, BMI, and BMI-for-age category from age 2. Optional parent heights estimate adult height using the mid-parental height formula.
No. Percentiles are educational approximations and may differ from clinical WHO or CDC growth charts. They are not a substitute for professional assessment.
No. This tool is for education only. Consult a qualified healthcare professional for personal health decisions.
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Educational only. Approximate percentiles and BMI bands are not official WHO or CDC growth-chart results. Not for diagnosis or treatment—see a healthcare professional for clinical assessment.
Enter age, height, and weight for approximate educational growth bands (not official WHO/CDC charts).
This child growth calculator is for educational purposes only and is not medical advice. Height and weight percentiles, BMI-for-age categories, and adult-height estimates use simplified reference curves—they are not official WHO or CDC growth-chart results and must not be used for diagnosis or treatment. Consult a qualified healthcare professional for personal health decisions.