- Estimated with the "rule of 9's" for adults, where each major body group corresponds to 9% BSA
- Entire head and neck (9%)
- Face (3.5%)
- Back of head (3.5%)
- Front and back of neck (1% each)
- Entire chest and abdomen (18%)
- Chest (13%)
- Abdomen and pelvis (5%)
- Entire back and buttocks (18%)
- Back (13%)
- Buttocks (5%), with 2.5% per buttock
- One entire arm (9%)
- Front and back of upper arm (2% each)
- Front and back of forearm (1.5% each)
- Front and back of hand (1.25% each)
- One entire leg (9%)
- Front and back of thigh (4.75% each)
- Front and back of leg (3.5% each)
- Top and bottom of foot (1.75% each)
- Genitals (1%)
|
|
Birth to 1 Year
|
1 to 4 Years
|
5 to 9 Years
|
10 to 14 Years
|
15 Years
|
Adult
|
| Head
|
19%
|
17%
|
13%
|
11%
|
9%
|
7%
|
| Thigh
|
5.5%
|
6.5%
|
8%
|
8.5%
|
9%
|
9.5%
|
| Leg
|
5%
|
5%
|
5.5%
|
6%
|
6.5%
|
7%
|
