A “good” one-rep max for the squat, bench, and deadlift depends on several factors, including your gender, body weight, and level of training experience.
The best way to see how you stack up against other lifters is to use what are called strength standards—strength benchmarks for different exercises based on your sex, body weight, and training experience.
Learn more:
These Are the Best Strength Standards on the Internet
The 12 Best Science-Based Strength Training Programs for Gaining Muscle and Strength
The Ultimate Beginner’s Guide to Powerlifting (With a Free Training Plan!)