Barbell plate calculator
Which plates to put on each side of the bar for any target weight.
Each side
25 + 15 kg
Total 100 kg
Estimates for healthy adults, not medical advice. If you are pregnant, have a medical condition or a history of disordered eating, speak to a qualified professional first.
Worked example
100kg on a 20kg bar needs 40kg per side: one 25kg and one 15kg plate on each end.
Common questions
- How much does an Olympic bar weigh?
- A standard men’s Olympic bar is 20kg; a women’s bar is 15kg. Technique bars are often 10kg or less.
- Should I count collars?
- Competition collars weigh 2.5kg each; spring clips weigh very little. Most gyms ignore spring clips.
Your next weight, worked out before you reach the bar.
6 Pack Club starts from these numbers, then learns from what you actually log — and tells you why every time it changes something.
See your free plan