Loads weight on both sides of the barbell. Always verify plates before lifting. Related: one rep max, body fat.
You enter a target weight, select a bar type (45, 35, or 15 lbs), and check which plate sizes you own. The tool subtracts the bar weight, divides by two for each side, then uses a greedy algorithm — starting from the largest available plate — to find an exact combination. If no exact match exists, it scans nearby weights to suggest the closest loadable alternatives above and below your target.
Plates go on both sides symmetrically, so the loaded weight is always an even multiple of the smallest available plate. With standard plates (down to 2.5 lb), you can load in 5 lb increments above the bar weight. Uncheck unavailable plate sizes to see realistic options for your gym.
This calculator uses pound-based plates (45, 35, 25, 10, 5, 2.5 lbs). For kilogram plates (20, 15, 10, 5, 2.5, 1.25 kg), you would need to convert or use a metric plate calculator.
A standard Olympic barbell is 45 lbs (20 kg). Women's Olympic bars are 35 lbs (15 kg). Training or technique bars are typically 15 lbs. Check your gym's equipment — specialty bars like trap bars or safety squat bars may differ.
Yes. Miscounted plates are one of the most common gym mistakes and can cause injury. Always double-check both sides match before unracking, especially at heavier weights.
Estimate only. Results reflect your inputs and standard formulas. Double-check important decisions independently.