Whether or not that weight is problematic depends on a few things.
If she is a cat with a large frame (similar to Maine Coone cats) or a much slimmer frame ( such as Siamese or other Asian cats), this will determine how much weight is proportional.
Secondly, if you can’t easily feel her ribs, she’s a little too chunky.
Third, look at her from above (like if she is standing normally and you are looking down at her back). If you can’t see a little bit of indent for a waistline, she’s too chunky.
Also, if on side profile her tummy hangs down or almost dragging on floor, that’s too much. Also if she’s so fat she has difficulty grooming herself, that’s WAY too much :)
My last cat Velvet was packing a bit too much weight , but not horrendously so. She was such a foodaholic, more so than any other cat I’ve ever had, that I just didn’t have the heart to limit her food.
She would even get anxious and start meowing if the level in the food bowl was down to only 1/8 inch but not yet empty.
But they said she had been picked up as a stray when I adopted her from the ASPCA so I’m assuming she had a rough time of it on the mean streets of Philly. She had zero interest in ever trying to get out the door even. So I figure her time on the street was pretty traumatizing and full of deprivation. Food meant security to her.
But all in all, she was a very large framed cat and you could tell by her shoulder bones. So she was probably no more than 3–4 pounds overweight. She was about 14 pounds all of her eighteen years and still frisky and playful and chasing her own tail. She may have been a little on the chunky side but she was happy.
But if your kitty is ok with twice a day feedings, she’s better off. Do as I say, not as I did. Ha ha.
It’s also good yours is an indoor kitty. You should expect many more happy years with her.