Chest compression depth for CPR is:
Adult = 2 inches
Child = 1 to 1 1/2 inches
Infant: 1/2 to 1 inch.
Compress a child's chest 1 to 1 1/2 inches.
Chest rises in CPR during breaths of about 2 inches.
10 inches
on an infant 1 to 1-1/2 to 1 inches. but do it very lightly, using your middle finger and ring finger.
For an Adult, apply pressure to compress chest 2 inches. For a Child, apply pressure to compress chest 1 - 1 1/2 inches. For an Infant, apply pressure to compress chest 1/2 - 1 inches.
As you give the breaths, look down at the infant's chest and you should see it rise 1/2 to 1 inches.
According to the Department of Motor Vehicles, for safety in the event of an accident, you should adjust the seat of your vehicle so that your chest is 10-12 inches away from your airbag and steering wheel.
For an adult, compress the chest 1 1/2 - 2 inches.
40 inches
Chest compressions on adults should be 1 1/2 to 2 inches deep.
1 to11/2 inches
12 to 15 inches