I went and remeasured, and they're actually about 11.1 cm, and that's actual measurement in a size 39 equivalent, but now that I'm looking at them, they do not appear as steep as one might think, yet the tape measure says what it says. I have another similar pair from the same brand (Steve Madden) that measures 11.7 cm up the back of the heel, and yet this pair appears much steeper for some reason. When I get time, I'll have to snap some pictures so we can all geek out trying to figure out the differing high heel curved profiles. Got to run!