I don't know the rules on this. Are there rules when there is a radiator? I sort of like them the way they are.

I am very lazy so leaving them is always an option! There is no safety issue with the radiator, it's just hot water. There is another small window with no radiator however. They are both the same height (about 44.5" from top of trim to bottom of trim) and same height from the floor. The curtains are currently 63 inches.

I think leaving them as they are is definitely an option.
Here are some pics I saw of to the window sill. You could also pull them to the side in some way.

Bottom of the apron, or touching the sill are both correct, (As is do nothing)

I think that I would not do touching the sill because they are mounted over the window instead of on the window. I would probably do bottom of apron or leave them.

I really love the look of touching the sill especially in the examples shown where the fabric is a little lighter. Part of the reason for getting these curtains is that they're black out so I think bottom of the apron would be more functional.

Thanks for weighing in, palimpsest, I trust you to be very knowledgable in these matters!

Aktillery that last picture is so dreamy. I wish every window in my life could look just like that.

oh wait, I think I was a little more ignorant than I thought. Is bottom of the apron just below where the sill sticks out (A) or just below the whole trim (B)?

When I was a kid, short curtains were mostly done just touching the sill, but these days there seems to be a preference for what I've heard called the "English" style, which would be about halfway between the sill and where your OP curtains end. Personally, I don't care for that, because to me it always makes the curtains look like they were just hung too low. I prefer sill-length.

ETA Back in the day I never saw curtains like that in England, so I guess it's a more recent trend there.

B bottom of trim.

Robo, do you have pins so that you could pin them up to see what they'll look like before you have them shortened? I fear that they may appear too short. Would you consider raising the rod so the top of the curtain is just below the ceiling, or just leaving them?

The ones in the kitchen look great that length as there is a natural stopping place for them. The other two pics show ones that blend with the background, so you don't see such a contrast.

I think they look great as is and wouldn't bother hemming them at all.

Here they are hastily pinned up. Not sure if this is a fair trial since I didn't bother ironing the hem or anything.

I am going to paint the room so I could raise the rod. If I had to.

I would leave them as is and raise the rod to the ceiling when you repaint.

What a pretty color! I'd have them hemmed just as you have them in the most recent picture and leave the rod where it is.

I asked this question (.short vs long) on Facebook and it was like 30:2 for long. Also this question (on Facebook) has gathered many more responses than any of my posts in recent memory (which to be fair is mostly pet pictures). Everyone loves a decorating dilemma, I guess!

I think "short vs. long" is interesting because they are already short.

"Long" would be to the floor or stopping just short of the top of the radiator. (Actually just to the top of the baseboard was apparently another length but I always though that looked like they had shrunk.)

63" and stopping mid wall is a standard length and you see it a lot because people don't hem. It's fine, it's not bad. But it's not really fitted to the window, it's neither here nor there.

I think on Facebook you aren't going to necessarily get the best answer or the more technically correct answer. You are going to get the popular answer. It's been drummed into people's heads that short drapes are bad. Long curtains are good. Even $1000 perfectly tailored to the window custom pinch pleats are dated and bad if they are short. They must be removed and replaced by Long something. Even if that is $19 IKEA panels that don't fit that well. So even though yours are already short, they are longer than if you hemmed them, so for many people that's the better option because longer is better.

I think it's a matter of what looks good to your eye unless you plan to do a photo shoot for Architectual Digest. I prefer the look of the unhemmed version.

I think I know what is throwing me off - I haven't seen grommet top curtains before that aren't long. But I just Googled, and there are few pics here, amid the long ones. Maybe it will help you decide? grommet tops

I think you should keep them longer. You have a shorter wide window vs. a taller window. I think that is why I am liking them longer... as it balances things out. I would raise the rod higher for the same reason.

Robo, I forgot to mention, I love your cat! Looks a bit like my Henry!

I like the look of the longer and too had wondered about raising the rod ti bring them up a little. Let's talk functionality--does some one sleep in this room? (Is this the future nursery?) If yes then I would keep them long to block out the maximum amount of light.

OK, you have all convinced me to raise the curtain rods at least. Functionally, the longer the better as this will be a nursery if all goes well!

aktillery I love your cat! Mine is my first marmalade and I just love him. He was the most mischievous pet in the household before the dog came along.

Robo, so is mine. He is loves to agitate my other cat who is scared of him. He rules every room he is in. My poor other cat (Sue) is terrified to go into any room where Henry is. However, their mom rules them all.

Your cat and pup are adorable!

How cute! I agree with Palimpsest, as usual. All comments.

Just to throw out another option, what about having them overhang the bottom window trim by the same distance that they are hung above the top window trim? Centering the window in the curtains, if that makes any sense.

Ok I rehung the rods higher. Now I feel like they're 1.5" too high but am not moving them again (next time I paint, aka a cold day in you know where).

Votes now?

I thought they looked fine before you raised them. Yes, they are a little too high but not enough to go to the trouble of lowering them. One suggestion is when baby is able to pull himself up in the crib, he'll want to pull on the curtain. I'd arrange the room so that the crib is not within reach of the curtains.