How Much Do 400 Cc Breast Implants Weigh?

Now that you have tried on sizers and chosen a volume that you like, you can calculate the weight of the implants.  The density of water is 1 gm/cc, so a saline implant that is 400 cc will weigh approximately 400 gm.  Two 400 cc implants will weigh 800 gm.  The conversion from gm to lbs is 2.2 lbs/kg.  So the implants will weigh approximately 0.8 kg x 2.2 lbs/kg = 1.76 lbs.  However, the implants are typically under the muscle and held close to your center of gravity.  They will not weigh on your neck like the birdseed does in the sizers.  People typically do not complain of back or neck pain after breast augmentation.

Watch this video of a 400cc Silicone Breast Augmentation.  I explain the surgery and let you see the actual implants used for the surgery.  The video will help explain the augmentation possible with a 400cc smooth round silicone breast implant.  I hope this helps!

It's a great question. Implants are measured in cubic centimeters (cc's). If you know the implant volume that you desire, then multiply it by two to account for both implants. Take the total volume and divide by 1000 and then multiply by 2.2 ((Total Volume)/1000 * 2.2) = Implant weight in pounds (lbs). Overall most women will get used to the weight of reasonably sized implants without a problem, but it's definitely important to consider the extra weight.

A 454cc implant weighs about a pound. (454 gms equals 1 pound).Certainly, overly large implants can lead to upper back/neck discomfort, but not typically in the 400cc range. When implants are much larger (500-600cc+) it is more common.

As an approximation 1 cc equals one gram, so 400 cc's equals 400 grams. In pounds this would be about  0.88 pounds per implant