When is the Lombardi formula preferred?

The Lombardi formula performs better than linear models at higher rep ranges (10-20 reps), making it useful for bodybuilding-style training where athletes work at lighter loads.

What does the exponent 0.10 represent?

The exponent accounts for the diminishing return of additional reps on estimated maximum strength. It reflects that each extra rep provides progressively less information about true 1RM.

Should I use one formula or compare several?

Comparing multiple 1RM formulas (Epley, Brzycki, Lombardi, Mayhew) and averaging the results gives a more robust estimate than relying on any single equation.

1-Rep Max Lombardi Formula

Calculate estimated one-rep maximum using the Lombardi formula: 1RM = weight × reps^0.10. Particularly useful for higher rep ranges where linear models lose accuracy.

Use the full interactive calculator below, or

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1-Rep Max Lombardi Formula

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Frequently Asked Questions

When is the Lombardi formula preferred?

What does the exponent 0.10 represent?

Should I use one formula or compare several?