Interval Timer Preset File Generator
Create a useful reusable interval timer presets file or printable summary in your browser. Save or copy your results, with straightforward guidance.
One-Rep Max (1RM) Calculator
Calculate estimated one-rep max using clear inputs and a documented method. Save or copy your results, with straightforward guidance.
Set up your estimated one-rep max
Enter relevant values, then review the method and results below.
How to use One-Rep Max (1RM) Calculator
Enter lifted weight (kg), completed repetitions, then choose the action button to view the result.
How the result works
Formula-based estimate with displayed units and assumptions.
Important limitations
Results are general fitness planning aids, not medical diagnoses or a replacement for individual coaching. Check exercise safety, equipment limits and training readiness before starting.
Frequently asked questions
What does the One-Rep Max (1RM) Calculator do?
Calculate estimated one-rep max using clear inputs and a documented method. Save or copy your results, with straightforward guidance.
What information do I need to enter?
Use the on-screen fields, including lifted weight (kg), completed repetitions. Check the displayed units before running the tool.
Is my information uploaded or saved automatically?
Inputs and results are processed in your browser; use Save to download a local text copy when available.