Mia's cat weighs 13 pounds, 7 ounces. about what is that weight in kilograms?

So oz to kilograms
1 oz=0.0283495 kilograms

first convert 13 pounds to oz
16 oz=1 poiund
13 pounds=16 times 13 oz=208 oz
add
208+7=215 oz

so 215 oz=0.0283495 times 215=6.095=6
answer is 6 kilograms

Well, you've got a problem there, because "kilogram" is not a unit
of weight or force.  It's a unit of mass, and it has different weights
in different places.

On the moon, 13 pounds 7 ounces is the weight of about
36.8 kilograms of mass.

On Mars, 13 pounds 7 ounces is the weight of about
16.1 kilograms of mass.

On Earth, 13 pounds 7 ounces is the weight of about
6.09 kilograms of mass.