how come my avatar pixels stays at 45.0?

[Spider-ManHero12]

i have 4,000 posts and when i go to use a 75 x 75 avatar it says that it has exceeded the number of pixels of 45.0. please help me.

 

[Darren Daring]

You didn't exceed 45 pixels, you exceeded 45 kb.

 

[Darthphere]

Brodie, is that you?

 

[Darren Daring]

Yes'm?

 

[Darthphere]

You were helpful.

 

[Darren Daring]

I'm helpful sometimes

 

[jaguarr]

There's a catch. Spidermanhero12 is going to have to kill his first seven children in Brodie's name to repay the favor.

jag

 

[Dew k. Mosi]

I already told this guy this when he PM'ed me. No one trusts me

 

[Darren Daring]

I doubt he knows what a kb is.