Enter a target weight and the plate calculator shows exactly which plates to load on each side of the bar — heaviest first, using standard gym plates — plus the closest loadable weight when your target can't be hit exactly.
Load on EACH side of the bar
2 × 45 lb
per side · heaviest plates closest to the collar
Total on the bar (bar + both sides)
225 lb
Warming up to this weight? Use the warm-up sets calculator to ramp there, or estimate your max with the 1RM calculator. More free tools →
| Equipment | kg gyms | lb gyms |
|---|---|---|
| Olympic barbell (men's) | 20 kg | 45 lb |
| Olympic barbell (women's / lighter) | 15 kg | 35 lb |
| Common plate denominations | 25, 20, 15, 10, 5, 2.5, 1.25 kg | 45, 35, 25, 10, 5, 2.5 lb |
The calculator loads plates greedily — heaviest denomination first — which is also how you should physically load the bar. It never overshoots your target.
NutriMind logs every set, estimates your 1RM as you train, and drives progressive overload automatically — then pairs it with AI nutrition coaching so calories and protein keep up with the weights you're loading.
Are the plates counted per side or total?
Per side. A barbell is loaded symmetrically, so the calculator solves (target − bar) ÷ 2 and lists the plates for ONE side. Load the same plates on the other side. Example: 225 lb with a 45 lb bar = two 45 lb plates on each side.
Why can't I hit my exact target weight?
Standard plate sets have a smallest pair — 2 × 1.25 kg (2.5 kg total) in kg gyms and 2 × 2.5 lb (5 lb total) in lb gyms — so the bar can only change weight in those increments. If your target falls between loadable weights, the calculator shows the closest loadable weight below it and how far short that is. Microplates (0.25–1 kg) close the gap if your gym has them.
How much does a standard barbell weigh?
A men's Olympic bar weighs 20 kg (about 44 lb, sold as 45 lb in US gyms); the women's Olympic bar is 15 kg (35 lb). Fixed-weight and specialty bars vary — EZ-curl bars run 7–12 kg, safety squat bars 25–32 kg — so check the bar's end cap or ask staff if you're unsure.
Does the calculator include collar weight?
No. Spring collars weigh almost nothing, so most lifters ignore them. Competition collars weigh 2.5 kg each — if you train with those, subtract 5 kg from your target before loading plates.
What order should plates go on the bar?
Heaviest first, closest to the collar face, then descending sizes outward — exactly the order shown above. This keeps the load stable, protects the bar sleeve, and makes stripping the bar faster between sets.