Frequently Asked Questions

Standards are derived from aggregated lift data across a large population of real, natural lifters. Each level represents a statistical percentile — Beginner (top 80%), Novice (top 60%), Intermediate (top 40%), Advanced (top 20%), Elite (top 5%). They reflect where actual people fall, not theoretical ideals.

Heavier lifters can generally lift more absolute weight, but the relationship is non-linear — strength doesn't scale proportionally with bodyweight. Grouping by bodyweight bracket allows fair comparison: a 60 kg lifter and a 100 kg lifter are judged against different absolute numbers.

All standards on LiftCodex are for raw (unequipped) lifting — no powerlifting suit, bench shirt, or knee wraps. Equipped lifters will typically exceed these numbers by a significant margin at advanced levels.

Standards are based on all lifters in the population, not just dedicated gym-goers. "Intermediate" means stronger than roughly 60% of people who lift — which is a genuine achievement. The levels are intentionally honest, not motivational.

The standards shown are for adults in their prime (roughly 18–40). Younger lifters may still be developing, and masters lifters often see natural declines in absolute strength. Age-adjusted standards are a planned feature.

Go to any exercise page under Strength Standards, enter your bodyweight and one rep max, and click "Find My Level". The table will highlight your row and show which level your lift falls into. For a quick overview across squat, bench, deadlift, and overhead press, use the Where Do I Rank? tool.

Use the One Rep Max Calculator — enter any weight and the number of reps you completed with it. A set of 3–8 reps gives the most reliable estimate. Sets beyond 10 reps become less accurate because muscular endurance starts to play a larger role than pure strength.

Both are estimates with similar accuracy in the 3–10 rep range. Epley tends to give slightly higher values at higher rep ranges; Brzycki is often more accurate for sets under 10 reps. Neither is perfect — factors like fatigue, exercise selection, and training experience all affect true 1RM.

All three formulas adjust a powerlifting total for bodyweight so you can compare performance across weight classes. Wilks is the classic formula used before 2020. DOTS was introduced as a more statistically balanced replacement and is now used in most IPF-affiliated meets. IPF GL Points measure your total relative to current world records at your specific bodyweight.

Yes — all calculators support both kilograms and pounds. Unit conversion is handled automatically. Strength standards are stored internally in kg but displayed in your chosen unit wherever relevant.

No. All calculations run entirely in your browser. Nothing is sent to any server, and no personal data is collected or stored. Some calculators use localStorage to remember your last inputs within the same browser session.

It's an overall strength assessment that takes your squat, bench press, deadlift, and overhead press — plus your bodyweight and gender — and gives you a strength level for each lift and an overall level based on your weakest lift. It also recommends a training program based on your current level.

A lifter with an elite squat and a beginner bench press is not an intermediate lifter — they have a significant weakness that should drive their training. Using the weakest lift reflects balanced development more honestly than averaging.

You can leave lifts blank — the tool will assess whichever lifts you enter. For a complete overall level and program recommendation, entering all four gives the most useful result.

Use the Where Do I Rank? tool for a recommendation based on your current strength levels. Generally: StrongLifts 5×5 or Starting Strength for absolute beginners, GZCLP or PPL for early-intermediate lifters, and 5/3/1 or the Texas Method once linear progression stalls.

Yes. The technique guides for squat, bench press, deadlift, overhead press, pull-ups, and bent-over row are written for all levels. They cover setup, execution, common mistakes, accessory exercises, and programming notes — with more technical detail than most introductory sources.

From any exercise page in Strength Standards, scroll to the bottom and look for the technique guide link. You can also browse directly from the Strength Standards index page.

The statistics articles cite sources for each data point, including peer-reviewed research, government health surveys, industry reports, and federation competition databases. Sources are listed at the bottom of each article.

LiftCodex is in active development. Statistics and standards data are updated as better sources become available. If you notice an error or outdated figure, reach out directly.

If a calculator is giving unexpected results or a standards value looks wrong, use the contact link to report it. Include the exercise, your inputs, and what you expected to see.