Breed Guide
Russian Blue: Pet-to-Human Weight Comparison
This is a visualization tool. Human comparisons use the standard adult healthy BMI range (18.5–24.9) based on the height you enter. Estimated Body Condition Score (BCS) is based on percent above or below the breed’s typical range.
Pet-to-Human Weight Calculator
Tip: Dense coat and solid muscle can hide extra fat. Feel ribs and look for a waist.
Please select sex and enter a valid cat weight and height.
Estimated range based on common breed references:
Cat status:
Estimated Body Condition Score (BCS):
Human healthy weight range at (BMI 18.5–24.9):
How this comparison works:
The calculator uses standard adult BMI (18.5–24.9) to determine a healthy human weight range for the entered height, then applies the same percentage above or within that range as your pet’s weight relative to its typical range.
Estimated Body Condition Score (BCS) uses whole numbers only:
within typical range ≈ 5;
0–<5% under ≈ 4; 5–<10% under ≈ 3; 10–<20% under ≈ 2; ≥20% under ≈ 1;
0–<20% over ≈ 6; 20–<25% over ≈ 7; 25–<30% over ≈ 8; ≥30% over ≈ 9.
Confirm with APOP body condition charts and your veterinary team.
Typical Breed Ranges (Starting Point Only)
Female Russian Blue
Typical weight: 7–10 lb (3.2–4.5 kg)
Elegant, fine-boned, but surprisingly dense and muscular.
Male Russian Blue
Typical weight: 10–12 lb (4.5–5.4 kg)
Often heavier than females; solid muscle under a plush coat.
These ranges reflect common breed references and are not health targets. Body condition and lean mass matter more than scale weight.
How to Check Body Condition at Home (Cats)
The number on the scale doesn’t tell the whole story. This quick check helps you spot changes early and decide when to loop in your veterinary team. (Works for domestic short-, medium-, and long-hair cats.)
60-second home check
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Ribs: You can feel ribs easily with light pressure, but they aren’t visibly sticking out.
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Waist: From above, there’s a gentle “in” behind the ribs (not a straight tube).
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Belly line: From the side, the abdomen is mostly level or gently tucked.
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Primordial pouch: A small, soft flap of skin on the lower belly can be normal, even in lean cats. The key is that the whole abdomen shouldn’t look round or swing heavily.
If ribs are hard to feel, the waist disappears from above, or the midsection looks rounded, your cat may be carrying extra body fat.
Feeding habits that make the biggest difference
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Measure portions. Use a kitchen scale when possible. “Eyeballing” is the #1 way calories creep up.
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Prioritize protein. For many cats, higher-protein, controlled-calorie diets support lean mass during weight management.
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Cut calories without cutting meals. Split into 2–4 smaller meals or use puzzle feeders to slow eating and reduce begging.
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Limit treats and “extras.” Keep treats under ~10% of daily calories. Count toppers, lickable treats, and table bites too.
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Recheck regularly. Track weight and body condition every 2–4 weeks and adjust with your veterinary team.
Not sure? Your veterinary team can confirm BCS (including what’s normal vs. not for the primordial pouch)
and help set safe, realistic goals for your cat.
This page is for education only and is not medical advice. Always consult your veterinary team for a personalized plan.