成長パーセンタイル計算：赤ちゃんの体重と身長
男の子・女の子別のWHO成長曲線で、0〜5歳の赤ちゃんの体重と身長のパーセンタイルを月齢ごとに確認できます。測定値を複数入れると、成長の線が見られます。
What is a baby growth chart calculator?
It is a percentile tool that shows where your baby’s weight and length or height sit among WHO reference children of the same age and sex.
How do I calculate my baby’s weight percentile?
Enter sex, age and weight. The calculator converts the measurement to a z-score with the WHO LMS method and shows the matching percentile. It uses the official WHO LMS values for each month of age.
How do I calculate my baby’s height percentile?
Enter sex, age, and length or height. The calculator returns the WHO percentile: length-for-age under 24 months, height-for-age from 24 months.
What does the 50th percentile mean?
It is the median for that age and sex: about half of children measure more and half measure less.
Do percentiles differ for boys and girls?
Yes. Growth charts are sex-specific, so the same measurement can map to different percentiles.
Are low or high percentiles a cause for concern?
Not automatically. Many children track along a low or high line. The NHS notes that crossing two centile lines is less common and worth discussing with your health visitor or doctor.
Which growth standards does this calculator use?
It uses the official WHO Child Growth Standards LMS tables (weight-for-age, length-for-age and height-for-age) for every month from birth to 5 years. Your clinic may use a national chart built on them, such as UK-WHO in the UK.