FITT Finder Tools
Featured toolLive1-Rep Max Calculator
“Epley, Brzycki, NSCA in one”
Estimate true 1RM from submax reps using three validated formulas side-by-side.
About 1-Rep Max Calculator
Estimate true 1RM from submax reps using three validated formulas side-by-side.
1-Rep Max Calculator is part of FITT Finder's program design suite — built for personal trainers and online coaches who need coach-quality programming without the spreadsheet grind. Use it free on-screen, then export a branded PDF your clients can actually follow. Every output is illustrated and ready to drop into Trainerize, Hevy, or Strong.
How to use it
Open the tool below
Scroll to the interactive form on this page. Each FITT Finder tool asks for a handful of inputs (goal, level, equipment, numbers, etc.) and takes under 30 seconds to fill out.
Enter your inputs
Tell the tool what you need. The on-screen form guides you through the details that matter for a high-quality, client-ready output.
Generate, then export
Click Generate. Review the output on-screen — free, no account. To deliver to a client, export a branded PDF, PNG, or CSV with a free account.
Use 1-Rep Max Calculator
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