Total CR When Adding Template and NPC Classes

[kevin_video]

So I'm looking at a pre-generated campaign with an ogre, and it says in the noting box that if the players are of a higher level than the adventure intended, give the ogre a level of warrior 1. NPC classes count as 1/2 a lvl adjustment, doesn't it? Do you round that up? Like say an ogre warrior is CR 4 as opposed to CR 3.5? Or is it CR 3, but just a little bit tougher?

The ravenous template adds +1 CR to a creature. This is perfect for a zombie. However, a zombie commoner is CR 1/2. Adding the template makes it CR 1.5. Is it now CR 2?

There's one for the death knight as well. It only adds 1/2 a CR.

What do you do when the templates or classes only add CR 1/2?

[bearsarebrown]

They're a CR X.5

that simple. look at really weak creatures for example. Hawk's are CR 1/4.

[kevin_video]

They're a CR X.5

that simple. look at really weak creatures for example. Hawk's are CR 1/4.

Something about that just doesn't sit well with me. Maybe because it's just too easy.

So for things like this http://www.penpaperpixel.org/tools/d20encountercalculator.htm do you just add in the standard CR, than add another 1 at the 1/2 for XP given out?

[ShadowViper]

In the case of Hawks at 1/4 CR, 4 Hawks would equal a single CR.

[PhaedrusXY]

Even PC classes only count as 1/2 CR each if they're non-associated, up to a certain number of them.

http://www.d20srd.org/srd/improvingMonsters.htm#addingClassLevels