What is the average One Arm Dumbbell Preacher Curl? The average One Arm Dumbbell Preacher Curl weight for a male lifter is 50 lb (1RM). This makes you Intermediate on Strength Level and is a very impressive lift.
What is a good One Arm Dumbbell Preacher Curl? Male beginners should aim to lift 12 lb (1RM) which is still impressive compared to the general population.