Photoshop CMYK different than online converters?

Hi. I have a very weird problem here.
When I try to convert RGB to CMYK in JavaScript code or existing online converters I always get the same and what I assume is the correct result.
Example is: 69, 25, 209 > 67, 88, 0, 18
But when I do it in Photoshop, I get: 83, 84, 0, 0
Can anyone explain why this happens? I assume Photoshop is the correct one and sets the standard, but its highly annoying that I cant figure out which is wrong!

John, the issues is that there is not "ONE" RGB and "ONE" CYMK. (unlike what the website might make you believe)
It's like you say "Green" there are countless greens, the ones from grass, from a palm tree, from the top or the bottom of a leaf... blueish greens, yellowish ones.
Likewise, there are many "Blue" colors, in a sky, it would vary with the moment of the day, how close to the horizon you are.
What you are asking is how comes Photoshop and one online converter does not agree for the amount of yellow one needs to add to convert blue paint to green.
You need to state exactly what blue and what green you are talking about, and that is the question people ask you here.
The RGB and the CYMK you are talking about will make the numbers vary greatly!
So to convert from RGB to CYMK, you need to tell from which color spaces you are talking about: sRGB, adobeRGB, ProPhotoRGB... and the CYMK you are converting to: the one for an offset press, for flexography, for a given set of ink and paper, etc.
A given color will have (way) different values in sRGB, AdobeRGB, or ProPhotoRGB, and also for SWOP, FOGRA... CYMK spaces.
and 125.210.056 will be a different color in sRGB, aRGB, ProPhoto, etc.
Try to find some Color Management 101 or primers and read about them:
http://www.peachpit.com/articles/article.aspx?p=1321842&seqNum=5
http://help.adobe.com/en_US/photoshop/cs/using/WSfd1234e1c4b69f30ea53e41001031ab64-73eea.h tml
http://help.adobe.com/en_US/creativesuite/cs/using/WS6A727430-9717-42df-B578-C0AC705C54F0. html#WS380A271D-1873-4fe1-B1B3-44F76281CCBE

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