Want to know your baby's length and weight during various stages of pregnancy?
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Kathika.com
Here is a table listing down the approximate length and weight of your baby. Don't worry too much if an ultrasound indicates that your baby is much smaller or larger. (Your practitioner will let you know if it's time to worry about how big your baby is.) By full-term, your baby may end up weighing less than 5 pounds or more than 9.
Note that babies are measured from the
crown (or top) of the head to the rump (or bottom) until about 20 weeks. This is because a baby's legs are curled up against his torso during the first half of pregnancy and very hard to measure.
After that, babies are measured from
head to toe (Crown to Heel). It is evident that the baby's weight grows exponentially from 21st week onwards as compared to his height. The height gets doubled from 10.5 inches to around 20 inches by the 9th month of pregnancy.
| Gestational Age |
Length(US-Inches) |
Weight (US-Ounce/Pound) |
Length(cm) |
Weight(Kg) |
|
|
(crown to rump) |
(crown to rump) |
| 8 weeks |
0.63 inch |
0.04 ounce |
1.6 cm |
1 gram |
| 9 weeks |
0.90 inch |
0.07 ounce |
2.3 cm |
2 grams |
| 10 weeks |
1.22 inch |
0.14 ounce |
3.1 cm |
4 grams |
| 11 weeks |
1.61 inch |
0.25 ounce |
4.1 cm |
7 grams |
| 12 weeks |
2.13 inches |
0.49 ounce |
5.4 cm |
14 grams |
| 13 weeks |
2.91 inches |
0.81 ounce |
7.4 cm |
23 grams |
| 14 weeks |
3.42 inches |
1.52 ounce |
8.7 cm |
43 grams |
| 15 weeks |
3.98 inches |
2.47 ounces |
10.1 cm |
70 grams |
| 16 weeks |
4.57 inches |
3.53 ounces |
11.6 cm |
100 grams |
| 17 weeks |
5.12 inches |
4.94 ounces |
13 cm |
140 grams |
| 18 weeks |
5.59 inches |
6.70 ounces |
14.2 cm |
190 grams |
| 19 weeks |
6.02 inches |
8.47 ounces |
15.3 cm |
240 grams |
| 20 weeks |
6.46 inches |
10.58 ounces |
16.4 cm |
300 grams |
|
|
(crown to heel) |
(crown to heel) |
| 20 weeks |
10.08 inches |
10.58 ounces |
25.6 cm |
300 grams |
| 21 weeks |
10.51 inches |
12.70 ounces |
26.7 cm |
360 grams |
| 22 weeks |
10.94 inches |
15.17 ounces |
27.8 cm |
430 grams |
| 23 weeks |
11.38 inches |
1.10 pound |
28.9 cm |
501 grams |
| 24 weeks |
11.81 inches |
1.32 pound |
30 cm |
600 grams |
| 25 weeks |
13.62 inches |
1.46 pound |
34.6 cm |
660 grams |
| 26 weeks |
14.02 inches |
1.68 pound |
35.6 cm |
760 grams |
| 27 weeks |
14.41 inches |
1.93 pound |
36.6 cm |
875 grams |
| 28 weeks |
14.80 inches |
2.22 pounds |
37.6 cm |
1005 grams |
| 29 weeks |
15.2 inches |
2.54 pounds |
38.6 cm |
1153 grams |
| 30 weeks |
15.71 inches |
2.91 pounds |
39.9 cm |
1319 grams |
| 31 weeks |
16.18 inches |
3.31 pounds |
41.1 cm |
1502 grams |
| 32 weeks |
16.69 inches |
3.75 pounds |
42.4 cm |
1702 grams |
| 33 weeks |
17.20 inches |
4.23 pounds |
43.7 cm |
1918 grams |
| 34 weeks |
17.72 inches |
4.73 pounds |
45 cm |
2146 grams |
| 35 weeks |
18.19 inches |
5.25 pounds |
46.2 cm |
2383 grams |
| 36 weeks |
18.66 inches |
5.78 pounds |
47.4 cm |
2622 grams |
| 37 weeks |
19.13 inches |
6.30 pounds |
48.6 cm |
2859 grams |
| 38 weeks |
19.61 inches |
6.80 pounds |
49.8 cm |
3083 grams |
| 39 weeks |
19.96 inches |
7.25 pounds |
50.7 cm |
3288 grams |
| 40 weeks |
20.16 inches |
7.63 pounds |
51.2 cm |
3462 grams |
| 41 weeks |
20.35 inches |
7.93 pounds |
51.7 cm |
3597 grams |
| 42 weeks |
20.28 inches |
8.12 pounds |
51.5 cm |
3685 grams |
| 43 weeks |
20.20 inches |
8.19 pounds |
51.3 cm |
3717 grams |
This is an average of the baby's size. If your baby is bigger or smaller, please don’t be alarmed. Contact your physician if you are concerned about any issues you are having with your pregnancy.
Source:
BabyCenter