Danny Owens’ side looked sluggish in the opening stages, but sprung to life in the second-half to run out deserving winners.
Camross enjoyed a bright start, with Zane Keenan and Aaron Moore among the scorers as they lead 0-6 to 0-3 after 15 minutes.
Kilcormac found form after that, however, and led by Ciarán Slevin the Offaly kingpins stormed back to lead 0-10 to 0-8 at half time.
They clicked into a higher gear after the interval, hitting five points without reply, before James Gorman bundled the ball over the line for the goal which all but ended the game as a contest.
Camross had a late goal as a consolation, through Tomás Burke, but Kilcormac were never threatened and ran out convincing winners.
Scorers for Kilcormac-Killoughey: C Slevin 0-7 (5f), J Gorman 1-1, P Geraghty 0-3, D Kilmartin, K Leonard 0-2 each, C Mahon, D Currams, T Geraghty 0-1 each
Scorers for Camross: Z Keenan 0-5 (0-3 frees), T Burke 1-0, D Keenan, M Collier, C Collier, D Delaney, A Moore 0-1 each
CAMROSS: T Doran; M Phelan, M Moloney, P Guilfoyle; M Burke, G Burke, D Keenan; Z Keenan, M Collier; C Collier, T Burke, A Collier; A Moore, D Palmer, D Delaney.
Subs: O Dowling for M Collier (38), T Brickley for A Collier (45), L Burke for C Collier (52), J Palmer for D Palmer (52), M Delaney for T Burke (60)
KILCORMAC/KILLOUGHEY: C Slevin; C Guinan, G Healion, C Mahon; K Grogan, P Healion, B Leonard; D Kilmartin, K Leonard; C Slevin, C Mahon, P Geraghty; J Gorman, D Currams, T Geraghty.
Subs: T Fletcher for K Leonard (52), J Geraghty for Kilmartin (54), C Kiely for P Geraghty (54), A McConville for K Grogan (57), E Grogan for B Leonard (59).
Referee: S Cleere, Kilkenny.