Tyger
2010-12-16, 10:39 AM
Math is not my strong suit, so I am here asking for the mathematically inclined among you to off what help you can.
Is there a basic formula for computing an attacker's chance to hit with the attacker's AB (BAB + all bonuses) vs the defender's AC?
I was told it was (AC- (AB+20))x5, but that doesn't work out at all, as all it gives is the chance to hit if you rolled 20. At least, I think that's what it gives.
Any relatively easy formula for this?
Is there a basic formula for computing an attacker's chance to hit with the attacker's AB (BAB + all bonuses) vs the defender's AC?
I was told it was (AC- (AB+20))x5, but that doesn't work out at all, as all it gives is the chance to hit if you rolled 20. At least, I think that's what it gives.
Any relatively easy formula for this?