Plate Calculator
Enter your target weight to see which plates to load on each side.
Standard plates used: 45, 35, 25, 10, 5, 2.5 lb. The calculator finds the combination using the fewest number of plates.
How to use this calculator
- Select your unit: Choose pounds or kilograms based on your gym's equipment.
- Enter target weight: The total weight you want on the bar, including the bar itself.
- Choose bar weight: Most standard barbells are 45 lb (20 kg). Women's bars are typically 35 lb (15 kg).
- Load the plates: The calculator shows what to put on each side. Load plates from largest to smallest, closest to the collar first.
Standard plate weights
Most commercial gyms stock these plate sizes. The calculator uses standard plates to find combinations.
Pounds (lb)
- 45 lb - Large plate (most common)
- 35 lb - Medium-large plate
- 25 lb - Medium plate
- 10 lb - Small plate
- 5 lb - Small plate
- 2.5 lb - Fractional plate
Kilograms (kg) - Olympic Colors
- 25 kg - Red
- 20 kg - Blue
- 15 kg - Yellow
- 10 kg - Green
- 5 kg - White
- 2.5 kg, 1.25 kg - Change plates
Common weight benchmarks
These are weights you will frequently load. Memorizing them can speed up your setup.
| Total | Per Side | Plates (each side) |
|---|---|---|
| 135 lb | 45 lb | 1 × 45 |
| 185 lb | 70 lb | 45 + 25 |
| 225 lb | 90 lb | 2 × 45 |
| 275 lb | 115 lb | 2 × 45 + 25 |
| 315 lb | 135 lb | 3 × 45 |
| 405 lb | 180 lb | 4 × 45 |
Based on a standard 45 lb bar. For a 20 kg bar, common benchmarks include 60 kg, 100 kg, and 140 kg.
Tips for loading plates
- Load evenly: Always add plates to both sides before starting your lift to keep the bar balanced.
- Largest plates first: Put the heaviest plates closest to the collar, then work outward with smaller plates. This keeps the weight stable.
- Use collars: Always secure plates with collars, especially for lifts like squats and bench press where the bar might tilt.
- Double-check: Before unracking, verify both sides have the same plates. An imbalanced bar can cause injury.
- Learn your gym's plates: Not all gyms have every plate size. Check what is available so you can plan weights that are actually loadable.
When you cannot hit exact weight
Sometimes your target weight is not achievable with available plates. In these cases:
- Round to nearest loadable weight: If your program calls for 227 lb, use 225 lb instead. Small differences do not matter for training effect.
- Add fractional plates: Some gyms have 1.25 lb or 0.5 kg plates for microloading. These help with small increments on pressing movements.
- Adjust reps instead: If you cannot add weight, do one more rep at the same weight. Both approaches drive progress.
Related guides
- 1RM Calculator — Estimate your max to plan training weights.
- Progressive Overload — How to add weight over time.
- Beginner 3-Day Program — A simple program with guidance on loading.
This guide is for general fitness information only and does not replace medical advice. Consult a qualified professional before starting a new exercise program, especially if you have existing health conditions or injuries.