Barbell weights versus machine weights
A barbell total includes the bar and both sleeves. Plate-loaded machines may use different leverage, so treat their numbers separately.
Gym Weight Calculator
Gym Weights Calculator
Quick barbell weight calculations for bench, squat, deadlift, and overhead press. Enter a target, get plates per side. kg & lb supported.
Direct Answer
A gym weights calculator helps convert target lifts into physical plates, whether you train in kg or lb.
Barbell total = bar + plates on left + plates on right
Bench
135 lb
One 45 per side
Squat
315 lb
Three 45s per side
Metric bar
100 kg
Two 20s per side
Good for weight rooms
This page is useful for school weight rooms, home gyms, commercial gyms, and shared racks where plate sizes vary.
Use the right calculator mode
Use standard mode for target loading, reverse mode for loaded bars, and kg mode for metric gyms.
Frequently asked questions
Does the bar count in the total?
Yes. Barbell totals include the bar. If you ignore the bar, every plate calculation will be off by 45 lb, 20 kg, or whatever your actual bar weighs.
Is this for all gym machines?
It is best for barbells and plate-loaded setups. Selectorized machines can feel different because pulleys and leverage alter resistance.
Need a custom number?
Use the live calculator when your bar weight, unit, or plate inventory is different.
Related answers
Plate Count Answer