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Weight to Body Surface Area Conversion for Cats

By

Susan E. Fielder

, DVM, MS, DACVP (Clinical Pathology), Oklahoma State University

Last full review/revision Oct 2015 | Content last modified Oct 2015
Topic Resources
Table
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Weight to Body Surface Area Conversion for Cats

Body wt (kg)

BSA (m2)

0.5

0.063

1.0

0.100

1.5

0.131

2.0

0.159

2.5

0.184

3.0

0.208

3.5

0.231

4.0

0.252

4.5

0.273

5.0

0.292

5.5

0.312

6.0

0.330

6.5

0.348

7.0

0.366

7.5

0.383

8.0

0.400

8.5

0.416

9.0

0.433

9.5

0.449

10.0

0.464

Note: body surface area (BSA) in square meters = K × (body wt in grams2/3) × 10-4

K = constant (10.0 for cats)

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