[Nairb]

Understand this is a VERY ROUGH way to calculate it, ie not very scientific. I make a lot of calls based on pot odds but in honesty there are so many more factors that pot-odds are only one in a set of considerations as to whether I stay in a hand or not. Stack sizes, my chipstack in relation to one round of blinds and antes(M), payout schedule, reads on apponents, # of people entering the pot in front of me are all considerations I look at in addition to simple odds.

In your instance I come over the top of his bet 100% of the time. If you think he has a K and you have 12 outs you are almost even money going to the turn and you could have the best hand with A high heads up. Pot odds in this case are secondary to the fact that
- you are heads up with A high
- you are drawing to the nuts

Your post only describes the hand in terms of pot odds. Some other things to consider here are:
- Did he raise pf or just call-check
- Table image, has he been loose or tight
- Table image, have you been loose or tight
- has he folded to an over the top raise earlier
- his stack vs your stack

Dependent on stack sizes and your reads it would take a damn good read for me not to raise here. You may be beat but thats poker.