Convert pounds and ounces to grams: Chart

Cute baby on a scale to be weighed

Note: This article may feature affiliate links to Amazon or other companies, and purchases made via these links may earn us a small commission at no extra cost to you. Learn more here.

Facebook
Twitter/X
Pinterest
Email
Reddit

Here are two charts (0-6 pounds and 7-13 pounds) to help you simply convert your baby’s weight in pounds and ounces to grams — or vice versa!

When do people measure in grams?

In the US — since American is one of the few metric system holdouts — a healthcare provider may tell you your baby’s weight in grams — such as after birth, during an ultrasound, or at baby checkups and other doctor visits.

Pounds are in across the top, while ounces in run down the side — and grams can be calculated by finding the intersection of the ounces and pounds.

0-6 pounds (0 to 3147 grams)
  0 1 2 3 4 5 6
0 0 454 907 1361 1814 2268 2722
1 28 482 936 1389 1843 2296 2750
2 57 510 964 1417 1871 2325 2778
3 85 539 992 1446 1899 2353 2807
4 113 567 1021 1474 1928 2381 2835
5 142 595 1049 1503 1956 2410 2863
6 170 624 1077 1531 1984 2438 2892
7 198 652 1106 1559 2013 2466 2920
8 227 680 1134 1588 2041 2495 2949
9 255 709 1162 1616 2070 2523 2977
10 284 737 1191 1644 2098 2551 3005
11 312 765 1219 1673 2126 2580 3034
12 340 794 1247 1701 2155 2608 3062
13 369 822 1276 1729 2183 2637 3091
14 397 850 1304 1758 2211 2665 3119
15 425 879 1332 1786 2240 2693 3147

7-14 pounds (3175 to 6322 grams)
  7 8 9 10 11 12 13
0 3175 3629 4082 4536 4990 5443 5897
1 3203 3657 4111 4564 5018 5471 5925
2 3232 3685 4139 4593 5046 5500 5953
3 3260 3714 4167 4621 5075 5528 5982
4 3289 3742 4196 4649 5103 5557 6010
5 3317 3770 4224 4678 5131 5585 6038
6 3345 3799 4252 4706 5160 5613 6067
7 3374 3827 4281 4734 5188 5642 6095
8 3402 3856 4309 4763 5216 5670 6123
9 3430 3884 4337 4791 5245 5698 6152
10 3459 3912 4366 4819 5273 5727 6180
11 3487 3941 4394 4848 5301 5755 6209
12 3515 3969 4423 4876 5330 5783 6237
13 3544 3997 4451 4904 5358 5812 6265
14 3572 4026 4479 4933 5386 5840 6294
15 3600 4054 4508 4961 5415 5868 6322