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Know your numbers.

Instant, science-based results. If your numbers show room to improve, we'll show you how LeanWize can help.

One-Rep Max (1RM)

Estimate your max for a lift from a working set (Epley formula).

Fill in the fields to see your result.
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Estimates only. These tools use standard formulas and give general guidance — they aren't medical or nutritional advice. For fat loss that's safe and personalised, your certified LeanWize dietitian sets your real targets.