Kitten Weights... too small?

I finally weighed the 18 day old kittens I am helping take care of. Out of the six, four of them are between 290-320 grams. But the other two are considerably smaller. One male is 270g while the smallest is only 250g. Is he too small for his age? I am not sure if he is getting enough while he is nursing. Do you think there is any problem with his weight, or is he fine? Thanks so much! :-)

Actually at almost 9 ounces he is about normal!! Here's what I got for info, keep in mind that there are 28 grams in an ounce! (which I had to look up )

AVERAGE KITTEN WEIGHT

AGE IN DAYS WEIGHT

1 2 1/2- 4 3/4 oz
5 3-7 oz
10 4 1/2 - 9 3/4 oz
15 6- 11 3/4 oz
20 7 1/2 - 14 1/2 oz
25 8- 16 3/4 oz



I hope this helps!! Sorry it took so long to answer, but figuring out the gram thing confused me!


Oh by the way, you can find this info at
http://www.sfspca.org/gifs/pdf_feralcats/kittens.pdf

on page 6!!

My cat Elsa had a litter of 8 kittens that at 3 weeks weighed between 8.9 oz and 5 oz.! I think that's 252 to 141.7 grams. So I think your kitties are probably right on!

Thanks so much glitch and kluchetta . I could tell when I picked the smaller two up that they were lighter than the rest, but I wasn't sure if they were undernourished or not. I'm very relieved that they are ok though! :-)

If they fall asleep nursing, and have fat little tummies, they should be ok.

They definitely have full little tummies when I pick them up! They are so adorable! :-)