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Plate math

Barbell plate
calculator

Type the weight. See the bar loaded, plate by plate, in competition colors, with a warm-up ladder on the way up.

kg
Units
Bar
Competition collars (2.5 kg each)
Load each side
3 × 251 × 2.51 × 1.25
182.5 kg on the bar
Warm-up ladder (suggested)
  1. 72.5 kg · 40%1×20 + 1×2.5 + 1×1.25
  2. 110 kg · 60%1×25 + 1×15 + 1×2.5
  3. 137.5 kg · 75%2×25 + 1×5 + 1×1.25
  4. 155 kg · 85%2×25 + 1×15
  5. 167.5 kg · 92%2×25 + 1×20 + 1×1.25
Built from the numbers above

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A 12-week plan built from your lifts and meet date. One tap after each top set and next week’s weights re-calculate.

  • 12 weeks to your meet date
  • Weights re-calculated weekly
  • Meet-day attempts
  • PDF and spreadsheet
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How it works

Heaviest plates first, every time.

The calculator subtracts the bar and collars, halves what is left, and fills each side with the largest plates that fit. That is how a meet loads the bar, and it keeps the heaviest plates nearest the lifter.

Competition colors

Kilo plates in competition follow one color code: red 25, blue 20, yellow 15, green 10, white 5. Change plates vary by brand. Pound plates are usually all black, so the lb view draws them by size.

FAQ

Plate loading questions lifters ask

Do collars count toward the weight?
Yes. Competition collars weigh 2.5 kg each, so a loaded bar with collars is 25 kg before any plates. Spring clips are light enough to ignore.
Why can’t it make my exact number?
Each side has to match, so the smallest step is two of your smallest plates: 2.5 kg with 1.25s, or 5 lb with 2.5s. Anything finer is shown as change.
Sources

Where the numbers come from

Last reviewed by the PowerliftMath team. How we build and check these tools.

  1. IPF: Technical Rules

    Plate colours, collar weight and the heaviest-plate-inside loading order used at IPF meets.