is there a way to no if your knife is sharp enough to field dress, skin and quarter a deer

like a sure fire way to know "yep thats sharp enough" usually i just feel the edge, like run it across my arm longways like im trying the shave my arm hair and if it feels rough and tugs on the hair then its sharp but if its smooth and glides right across and doesnt cut any hair then its dull

is there any better way or way i could no my knife is sharp?