The breast augmentation consultation includes a detailed discussion and comparison of saline-filled and silicone gel-filled breast implants. To help appreciate the differences between the two implants, woman have the opportunity to handle the implants and feel the characteristics of each. Both implants have a shell made of a silicone elastomer, but the fluid (wave) consistency of the saline implant is quite different from the (cohesive) gel consistency of the silicone implant. After feeling the implants, some women comment that they believe the silicone gel breast implant feels heavier than a saline-filled breast implant. Despite the apparent difference, the implants are very similar in weight. In addition, saline and silicone implants weigh about the same as breast tissue.
Calculating the weight of a saline implant —
The density of the 0.9% saline used to fill the implant is about 1.005 gr/cm3.
Using a 300 cc breast implant for this example (and ignoring the weight of the implant shell)…
A 300 cc Saline-filled breast implant weighs:
300 cc x 1.005 gr/cc = 301.5 gr
Two 300 cc Saline-filled breast implants therefore weigh 603 gr.
1 pound = 453.592 gr (round to 454 gr)
Therefore, two 300 cc Saline-filled breast implants weigh:
603 gr / 454 gr = 1.328 pounds = 1 pound 5.25 ounces.
This photograph shows the weight of a moderate profile 304cc silicone gel-filled breast implant. The weight of this implant is 306 grams. Using the estimated density of silicone gel (0.97gr/cc), a 304cc silicone gel implant should weigh about 295 grams. This would suggest that the implant shell weighs about 12 grams.
Calculating the weight of a silicone gel implant —
The density of the silicone used to fill the breast implant is about 0.98 gr/cm3.
Using a 300 cc breast implant for this example (and ignoring the weight of the implant shell)…
A 300 cc Silicone gel-filled breast implant weighs:
300 cc x 0.97 gr/cc = 291 gr
Two 300 cc Silicone gel-filled breast implants therefore weigh 582 gr.
1 pound = 453.592 gr (round to 454 gr)
Therefore, two 300 cc Silicone gel-filled breast implants weigh:
582 gr / 454 gr = 1.282 pounds = 1 pound 4.5 ounces.
This demonstrates that a silicone gel breast implant is actually just slightly lighter than an equal volume saline breast implant.
Below is a list of approximate implant weights:
Saline
Implant Volume Implant Weight Weight for Pair of Implants
(cc) (pounds)
200 cc 0.44 14.1 ounces
225 cc 0.50 15.9 ounces
250 cc 0.55 1 pound 1.7 ounces
275 cc 0.61 1 pound 3.5 ounces
300 cc 0.66 1 pound 5.3 ounces
325 cc 0.72 1 pound 7.0 ounces
350 cc 0.77 1 pound 8.8 ounces
375 cc 0.83 1 pound 10.6 ounces
400 cc 0.89 1 pound 12.3 ounces
425 cc 0.94 1 pound 14.1 ounces
450 cc 1.00 1 pound 15.9 ounces
475 cc 1.05 2 pounds 1.7 ounces
500 cc 1.11 2 pounds 3.4 ounces
Silicone
Implant Volume Implant Weight Weight for Pair of Implants
(cc) (pounds)
200 cc 0.43 13.7ounces
225 cc 0.48 15.4 ounces
250 cc 0.53 1 pound 1.1 ounces
275 cc 0.59 1 pound 2.8 ounces
300 cc 0.64 1 pound 4.5 ounces
325 cc 0.69 1 pound 6.2 ounces
350 cc 0.75 1 pound 7.9ounces
375 cc 0.80 1 pound 9.6 ounces
400 cc 0.85 1 pound 11.4 ounces
425 cc 0.91 1 pound 13.1 ounces
450 cc 0.96 1 pound 14.8 ounces
475 cc 1.01 2 pounds 0.5 ounces
500 cc 1.07 2 pounds 2.2 ounces
Hw much is the weight of 3 size of silicon breast implant and one will get neck and back pain after ha ing silicon breast implant.
A 300cc silicone gel breast implant weighs just over 10 ounces, which is just under 2/3 of a pound. This volume is quite popular and falls within a range of implant volumes (between 250mL and 350mL) that are common for many women who desire a full, but natural, augmentation. Women who have augmentation surgery with implant volumes in this range do not experience neck or back pain post-operatively.
Hello, I’m trying to figure out the weight of my implants. I have Mentor 650cc high profile implants. I would like to know what the total weight is with the shell included. I tried two different equations and got two completely different answers (the other equation didn’t state whether or not the shell was included). When using the equation you provided I got a total of 2.77lbs. not including the shell. Is this accurate and how do I add the weight of the shell. Also, do different cohesive gels have different weights to them? Today there are so many different types of silicone gel. Thank you so much for your help! Have a great day!
Yes, Mellissa, you are correct. Each implant weighs 1.38 pounds, or 1 pound 5 ounces. So both implants weigh a total of 2.77 pounds, or 2 pounds 12 ounces.
The shell volume is probably about 30-40cc per implant. Historically the shell volume was included in the over nomenclature. Some implants in the past were listed as grams rather than cubic centimeters. Since implants have changed over the last several years I would have to verify, but I think the shell volume is (still) included in the 650cc volume.
The different gels would probably vary, but only by very minute amounts. I could weigh some implants and see what I get. You would generally select a higher cohesive silicone gel implant (responsive/HSC vs. SoftTouch/HSC+ vs. Highly Cohesive) for its characteristics – less rippling, better shape retention, more upper pole fullness – if those were important in the resulting appearance or feel.
Hope that helps.
Just as an interesting aside …. When we fill traditional saline implants the volume of the shell is not included in our overall statement of the final volume, and we just report how much saline we placed inside the implant. For example, if I use a Natrelle 68-300 saline implant, this implant has a recommended fill volume of 300cc-330cc. I can fill the implant anywhere within this range and I record that volume as the “fill” volume. But that does not include the volume of the shell. The real volume of the entire implant is probably about 20cc more than the reported fill volume. So if I fill this implant with 330cc of saline, the actual volume of the entire breast implant is probably about 350cc (the implanted volume). But in communicating about traditional saline implants we never consider the volume of the implant shell; shell volume is always excluded in how we think of these implants. We would just say the implant was filled with 330cc. Or another way, this patient has a Natrelle moderate profile 300cc saline implant filled with 330cc.
In contrast, Ideal Implant always includes the shell volume in its overall volume determination. This structured saline implant essentially consists of an inner implant surrounded by one or two baffle shells, all contained inside the outer shell. So this implant has three or four shells of silicone elastomer that contribute to the overall implant volume; and as a result they have elected to include that shell volume in the overall reported volume of the implant. Therefore, the final volume that is recorded for an Ideal implant includes the shell volume; the actual “fill” volume is less. For example, if I place a 300cc Ideal Implant, this implant has a recommended total volume of 300cc-340cc. I can fill the implant so the total volume is within that range, and I record the volume as the “total” volume of what is implanted. In this example, if I fill the implant to a final volume 340cc, the inner lumen is filled with 188cc and the outer lumen is filled with 115cc. The total fill volume is 303cc. The shell volume is 37cc. The total implanted volume is 340cc.
-KDD
So please tel me how much for 2 x 275cc silicone weighs in kg please ??
Thank you
Thank you for your question
A 275 cc Silicone gel-filled breast implant weighs:
275 cc x 0.97 gr/cc = 266.75 gr
Two 275 cc Silicone gel-filled breast implants therefore weigh 533.5 gr.
533.5 gr = 0.534 kg
1 pound = 453.592 gr (round up to 454 gr)
Therefore, two 275 cc Silicone gel-filled breast implants weigh:
533.5 gr / 454 gr = 1.175 pounds = 1 pound 2.8 ounces.
The above calculation is an estimate and excludes the weight of the shells which might add 30(+) gr each to the overall weight.
Hello,
Thank you for the information! Would you please be able to tell how much would two (2) 550cc silicone gel implants weigh – including the shell, more or less?
Thank you!
Thanks for your question.
A 550 cc Silicone gel-filled breast implant weighs:
550 cc x 0.97 gr/cc = 533.5 gr
Two 550 cc Silicone gel-filled breast implants therefore weigh 1067 gr.
1067 gr = 1.067 kg
1 pound = 453.592 gr (round up to 454 gr)
Therefore, two 550 cc Silicone gel-filled breast implants weigh:
1067 gr / 454 gr = 2.35 pounds = 2 pounds 5.6 ounces.
The above calculation is an estimate and excludes the weight of the shells which will likely add more than 30 gr each to the overall weight. This adds an additional 2 ounces, making the overall weight approximately 2 pounds 8 ounces (2.5 pounds).
I had a double mastectomy I Feb 2018. Dr put in 640 cc of silicone . He put them in wrong. More under my arm. I have pain. Alot of pulling of my skin in the center ofy chest. Reading your comments, I see part of the pain might be the weight. I never agreed on 640. I wanted smaller. I’m 5′. But a little on the heavy side. I got a second opinion after surgery. He doesn’t know why the other Dr went so big. My plan is losing wt and having the second Dr redo and put in smaller implants as I asked for in the first place. What would the wt be for 640 cc x 2. And do you think it would cause the pain and I feel every morning they seem swollen . Thank you
Thanks for your question.
A 640 cc Silicone gel-filled breast implant weighs: 640 cc x 0.97 gr/cc = 620 gr
Two 640 cc Silicone gel-filled breast implants therefore weigh 1240 gr.
1 pound = 453.592 gr (round to 454 gr)
Therefore, two 640 cc Silicone gel-filled breast implants weigh:
1240 gr / 454 gr = 2.73 pounds = 2 pounds 11.7 ounces.
Pain could be caused my any number of things. I dont think the size of an implant is necessarily related to/the direct cause of breast pain, but if the implants are over-sized or not in the proper position then they may contribute to, or cause, pain. You should speak to your physician about this since the doctors you are working with know your situation best. Best wishes.
My implants are 790cc …. does that mean about 1 2/3 lbs each??
Yes that is correct. Each breast implant weighs 1.69 (1-2/3) pounds. Thank you.