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.

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.

For a 400 cc implant, each implant weighs less than one pound, or 0.88 lb to be exact.
This should not result in any back or neck pain. What you are experiencing is the result of you trying to simulate the look using the birdseed-in-a-nylon method.
Thanks to Vectra 3D imaging, these “tricks” to get a sense of what your breast implants will look like are now outdated. They have been replaced with a much more accurate simulation.
I hope that answers your question on implant weight. It’s great that you’re doing this research. I always say that the best patients are informed patients.
You might also want to research your options for breast implants. Choosing the right implant is the number one concern among women considering breast augmentation. Did you know, there’s actually a way to select a implant shape, size, and profile that is perfect for you?
A term that I use with my patients for the perfect implant is the “Pony Implant”.
So what do I mean by “perfect”? Well, a Pony Implant has three qualities to it. First, the implant meets your beauty goals. For example, you want to your breasts to look fuller while still appearing natural.
Second, when you chose your Pony Implant, you walk out of your consultation 100% confident that you’ve chosen the right shape and size for you. In other words, you won’t be second guessing your decision, and you won’t be afraid of having gone too big or too small.
And third, after your procedure, you are thrilled with your results, and say, "I’m so happy. This is exactly what I wanted!"
That’s the Pony Implant. And the great news is that there is a simple process to go about finding yours.
This issue of selecting the right implant is so important when it comes to patient satisfaction or dissatisfaction that, again, I really encourage you to learn more about it.
Thank you for reading and best of luck on your journey!