*Average height and weight ranges by age*
Here's a comprehensive reference table for *average height and weight ranges by age* for children and adolescents, based on *CDC growth charts* (2-20 years) and *WHO standards* (0-2 years). These are *general guidelines* — individual growth varies significantly based on genetics, nutrition, health, and ethnicity.
### 📏 Height & Weight Ranges by Age
(Averages are approximate; healthy children often fall outside these ranges)
| Age | Boys - Height | Boys - Weight | Girls - Height | Girls - Weight |
|---|---|---|---|---|
| Newborn | 46–54 cm (18–21 in) | 2.5–4.5 kg (5.5–10 lbs) | 45–53 cm (17.5–21 in) | 2.4–4.2 kg (5.3–9.3 lbs) |
| 3 months | 58–64 cm (23–25 in) | 5.0–7.0 kg (11–15.4 lbs) | 57–63 cm (22.5–25 in) | 4.5–6.5 kg (9.9–14.3 lbs) |
| 6 months | 63–71 cm (25–28 in) | 6.5–9.0 kg (14.3–19.8 lbs) | 61–70 cm (24–27.5 in) | 6.0–8.5 kg (13.2–18.7 lbs) |
| 1 year | 71–80 cm (28–31.5 in) | 8.5–11.5 kg (18.7–25.3 lbs) | 69–79 cm (27–31 in) | 7.5–10.5 kg (16.5–23.1 lbs) |
| 2 years | 81–90 cm (32–35.5 in) | 11–14 kg (24.3–30.9 lbs) | 80–89 cm (31.5–35 in) | 10–13.5 kg (22–29.8 lbs) |
| 4 years | 97–108 cm (38–42.5 in) | 15–18.5 kg (33–40.8 lbs) | 96–107 cm (38–42 in) | 14.5–18 kg (32–39.7 lbs) |
| 6 years | 110–121 cm (43.5–47.5 in) | 18–23 kg (39.7–50.7 lbs) | 109–120 cm (43–47 in) | 17.5–22.5 kg (38.6–49.6 lbs) |
| 8 years | 122–134 cm (48–53 in) | 22–30 kg (48.5–66 lbs) | 121–133 cm (47.5–52.5 in) | 21.5–30 kg (47.4–66 lbs) |
| 10 years | 130–145 cm (51–57 in) | 27–40 kg (59.5–88 lbs) | 132–148 cm (52–58 in) | 28–42 kg (61.7–92.6 lbs) |
| 12 years | 142–160 cm (56–63 in) | 34–52 kg (75–114.6 lbs) | 147–163 cm (58–64 in) | 36–57 kg (79.4–125.7 lbs) |
| 14 years | 156–174 cm (61.5–68.5 in) | 45–68 kg (99–150 lbs) | 155–165 cm (61–65 in) | 45–63 kg (99.2–139 lbs) |
| 16 years | 167–183 cm (66–72 in) | 54–80 kg (119–176 lbs) | 157–166 cm (62–65.5 in) | 49–67 kg (108–148 lbs) |
| 18 years | 170–188 cm (67–74 in) | 60–85 kg (132–187 lbs) | 158–168 cm (62–66 in) | 51–70 kg (112–154 lbs) |
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### 🔑 Key Notes:
1. *Growth Spurts Vary*:
- Girls often peak in growth at *10–14 years*.
- Boys typically peak later at *12–16 years*.
(e.g., A 12-year-old girl might be taller than a boy her age).
2. *BMI-for-Age Matters More Than Absolute Numbers*:
Pediatricians track if a child’s weight is proportional to height using *BMI percentiles* (e.g., 5th–85th percentile = healthy range).
3. *Red Flags 🚩*:
- Sudden weight loss/gain.
- Stalled height growth (>6 months no change).
- Falling far below/above their established growth curve.
4. *Puberty Impact*:
Hormonal changes cause rapid shifts. Siblings may grow at different paces!
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