Overall size of a font

Greetings!
Is there any way to increase the overall size of a font without having to individually edit EVERY single glyph? I’ve compared the font I’ve created with arial, and the font at size 12 is quite small compared to arial, even though when I built it I used similar dimensions. So is there any easy way to increase size?

Look at my post and also follow the link to Vanisac’s post.

Changing units/em values without resizing fonts

It is possible to retain hinting information by copying and pasting within the same font. If your font contains composites, don’t select them when copying as they will be converted to simple glyphs. Composites, in case you don’t know, are letters like ñ which is composted of n and ~ All you need to do is resize the n and the ~ and the ñ will be resized too (you may have to manually copy widths from n to ñ though.

You will have to do some of your own thinking, as my solution is for a related problem, not the identical one. I think it will be just a matter of changing the order in which you do things.