Percentage wave
5/3/1-Style Calculator
Enter a training max and generate a simple four-week percentage wave. This is a calculator for loading math, not an official program.
Training max
Wave type
Week 1
65% x 5155 lb
75% x 5180 lb
85% x 5+205 lb
Week 2
70% x 3167.5 lb
80% x 3192.5 lb
90% x 3+215 lb
Week 3
75% x 5180 lb
85% x 3205 lb
95% x 1+227.5 lb
Week 4
40% x 595 lb
50% x 5120 lb
60% x 5145 lb
How to use the wave
Start with a conservative training max, not the biggest estimated 1RM you can justify. The purpose of a training-max wave is to keep the heavy work repeatable while leaving room for clean plus sets and future progress.
If every final set feels like a max attempt, lower the training max by 5-10% and rebuild the wave. The calculator gives the loading math; your bar speed and recovery decide whether the number is useful.
Training max first
A true one-rep max is the most you might lift once under ideal conditions. A training max is the number you can build weeks of useful work from. This calculator expects the second number. If you only have an estimated 1RM, use 85-90% for conservative blocks, 90% for a standard starting point, and higher percentages only when you recently handled heavy singles cleanly.
The weekly wave is intentionally simple: the percentages rise across the first three weeks, then the fourth week backs off. The calculator rounds each set to loadable barbell weights so the output can be used in a real gym instead of copied from a spreadsheet with impossible decimals.
Common mistakes
- Entering a true max instead of a training max.
- Taking every plus set to a technical breakdown.
- Rounding up every set until the wave becomes more aggressive than intended.
- Changing the training max after one unusually good or bad day.
Practical example
If your e1RM bench is 262.5 lb, a standard 90% training max is about 235 lb. The first week then uses percentages of 235 lb, not 262.5 lb. That difference matters: it keeps the work repeatable, leaves room for strong plus sets, and makes the next cycle easier to progress.
Limitations
This is a percentage-wave calculator, not an official program. It does not choose assistance work, weekly frequency, deload rules, or progression jumps for you. Use it for loading math, then apply coaching judgment to volume, exercise selection, and recovery.
Sources
- ACSM progression models - Progression models in resistance training for healthy adults.
- Helms et al. 2018 - Autoregulation and RPE guidance for resistance training.
FAQ
Is this an official 5/3/1 program?
No. This is a generic percentage wave calculator for lifters using training maxes and 5/3/1-style loading.
Should I enter true 1RM or training max?
Enter a training max. If you only know your estimated 1RM, calculate 85-95% first and use that number here.
How should I handle plus sets?
Keep plus sets technically clean. Stop before form changes enough to make the next week worse.