Weight

Domestic Longhair weight chart

Fluffy mixed-breed cats with long fur, hardy and varied.

Varies – often affectionate and calm.

Adult reference weight is 6 to 18 lb. The breed record lists 12 to 20 years.

Breed record origin is Worldwide.

The breed record marks Domestic Longhair as a fit for a first-time owner.

Domestic Longhair

How much does a Domestic Longhair weigh?

Typical weight, then the reference range under it.
AgeFemaleMale
8 weeks3.3 lb2.7 to 4.12.4 lb1.9 to 3
12 weeks5.1 lb4.3 to 5.84 lb3.4 to 4.7
16 weeks6.8 lb5.8 to 7.65.6 lb4.9 to 6.5
20 weeks8.1 lb7.3 to 9.17.1 lb6.3 to 8.1
24 weeks9.1 lb8.3 to 10.18.3 lb7.5 to 9.4
30 weeks10 lb9 to 10.99.9 lb8.8 to 10.8
36 weeks10.8 lb9.9 to 12.110.6 lb9.6 to 11.9
42 weeks10.7 lb9.5 to 11.711.3 lb10.1 to 12.3
1 year11 lb9.7 to 12.611.5 lb9.9 to 13
15 months11.7 lb10.5 to 12.812.2 lb11.1 to 13.3
18 months12 lb10.5 to 14.112 lb10.6 to 13.8

Breed weight ranges are a reference, not a diagnosis. Ask a vet before you treat a number as a problem.

Adult weight up to 8.16kg exceeds WALTHAM 7kg ceiling. Milestones scaled from WALTHAM by breed adult midpoint (5.44kg). Confirm with vet and BCS.

The curve comes from WALTHAM / Salt et al. PLOS ONE 2022 (Liverpool DataCat 1456). WALTHAM dataset

Food

Standard indoor formula. Watch hairballs if they groom a long coat.

Home

Indoor. Regular brushing is the real housing cost.

Company

Usually adaptable family cats.

Coat

Brush several times a week or mats win.

What tends to stress them

  • Mats
  • Skipped brushing

Breed risks to mention to a vet

  • Dental disease
  • Obesity
  • Matting if not groomed

A breed risk is not a diagnosis for your cat.

More breed charts

Plants, food, and household hazards

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