How Much Should a 5-Month-Old Kitten Weigh?

A healthy 5-month-old kitten typically weighs around 2.5kg (5.5lbs), with male cats often being heavier than females. Kittens generally gain approximately 0.5kg (1lb) per month during their first six months of growth. If your kitten weighs significantly less than this at five months, consult your vet about potential nutritional or health concerns.

Kitten weight progression follows these general guidelines:

1. Newborn: 70-135g
2. 1 week: 110-125g
3. 3 weeks: 215-420g
4. 4 weeks: 250-500g
5. 5 weeks: 290-620g
6. 6 weeks: 315-700g
7. 7 weeks: 400-900g

Adult cat weights vary by gender:

• Average adult: 2.5-5.5kg
• Pregnant/nursing females: 3.5-5.5kg

Male cats often follow a 'one pound per month' growth pattern, meaning a 5-month-old male may weigh about 2.5kg. Some males reach over 5kg by one year. Adult females typically weigh 3-3.5kg, being slightly smaller than males.

Monitor your kitten's growth with regular weigh-ins. If your 5-month-old kitten weighs significantly below 2.5kg, schedule a veterinary check to rule out health issues and review their diet.