Pignet Index or Body Build Index is an index used for evaluation of body build. It was suggested in 1901 by Maurice–Charles–Joseph Pignet, who was a French army doctor.

Pignet Index is expressed by formula:^[1]

Stature in cm - (weight in kg + chest circumference in cm)

Body build according to this index is noted as:

• Very sturdy: <10
• Sturdy: 10-15
• Good: 16-20
• Average: 21-25
• Weak: 26-30
• Very weak: 31-35
• Poor: >36