According to my calculations, you shouldn't need too much more than 25 to 50% magnification or so. Details and assumptions below: I don't know how far you sit

According to my calculations, you shouldn't need too much more than 25 to 50% magnification or so. Details and assumptions below: I don't know how far you sit from the screen, nor which websites you typically visit, but unless I miscalculated, your screen resolution is roughly 82 pixels per inch. I also don't know what OS you run, but at least on Windows, things render by default at 96 pixels per inch. (I've heard that some other systems have smaller text than windows though.) Thus on Windows you should be seeing things about 18% larger than "true" size. (That is, things take up more inches on screen than they would on paper.) This is actually too small: according to this Wikipedia article: https://en.wikipedia.org/wiki/Dots_per_inch https://en.wikipedia.org/wiki/Dots_per_inch, people read the screen from 30% farther than they read paper. So the DPI should be scaled to compensate. Then you need further fudge factors to account for small font sizes some websites use, and some other stuff I'm too lazy to think about now. But still 25 to 50 percent should do it, I think?