Merck Manual

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Weight to Body Surface Area Conversion for Cats

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)