Current Max Weights

Exercise	6 Reps (kg)	1RM (kg), theoretical	lbs
Bench Press	125	147	324
Deadlift	140	165	362
Curl	35	41	91
Leg Press	340	400	880
Row	110	129	285
Tricep Pushdown	50	59	129

Based on the table

Reps	% of 1RM
1	100
2	95
3	92.5
4	90
5	87.5
6	85