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  2. BSAVA Small Animal Formulary Part A: Canine and Feline
  3. Bodyweight (BW) to body surface area (BSA) conversion tables

Bodyweight (BW) to body surface area (BSA) conversion tables

(Formula: BSA (m) = 0.101 × (body weight in kg))

BW (kg) BSA (m)
0.5 0.06
1 0.1
2 0.16
3 0.21
4 0.25
5 0.30
6 0.33
7 0.37
8 0.4
9 0.44
10 0.47
11 0.50
12 0.53
13 0.56
14 0.59
15 0.61
16 0.64
17 0.67
18 0.69
19 0.72
20 0.74
22 0.79
24 0.84
26 0.89
28 0.93
30 0.98
35 1.08
40 1.18
45 1.28
50 1.37
55 1.46
60 1.55

(Formula: BSA (m) = 0.1 × (body weight in kg))

BW (kg) BSA (m)
0.5 0.06
1 0.1
1.5 0.134
2 0.163
2.5 0.184
3 0.208
3.5 0.231
4 0.252
4.5 0.273
5 0.292
5.5 0.316
6 0.33

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