Is 80 kg overweight for a girl?

It depends on height and age. For an adult woman who is 5'8" (173 cm) or taller, 80 kg would typically fall within the healthy to slightly overweight range. For someone shorter, like 5'3" (160 cm), it would be considered overweight. However, BMI alone doesn't account for muscle mass, bone density, or overall health. A woman who is athletic and muscular might weigh 80 kg and be perfectly healthy. Always consider individual factors beyond just the number on the scale.