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Gym Mode

What weight should I use today? Get an instant recommendation with plate loading and rest timer.

Set your profile to auto-fill your training data. Set Profile

🏋 Today's Set

Your estimated one-rep max for this exercise

Recommended Weight

reps @ RPE  — % of 1RM

📌 Plates Per Side

Total
Bar only - no extra plates needed.
Last Session

Set logged!

Log in to save sets

What is Gym Mode?

Gym Mode is a hands-free set tracker built for the gym floor. Enter your one-rep max and target RPE, and it instantly tells you what weight to put on the bar - along with an exact plate loading breakdown so you never have to do mental math between sets.

Unlike generic percentage calculators, Gym Mode uses the Tuchscherer RPE percentage table to account for both reps and perceived effort, giving you a smarter, more precise training recommendation every session.

Key Features

  • Real-time RPE logging - Record your actual RPE after each set to track training intensity accurately
  • Visual plate calculator - See exactly which plates to load on each side of the barbell
  • Built-in rest timer - Configurable 1:30, 3:00, or 5:00 rest periods to optimize recovery between sets
  • Exercise autocomplete - Quick selection across the Big 3 and 15+ common barbell movements
  • Profile auto-fill - Save your 1RMs once and have them pre-loaded every session
  • Session history - Log in to track your sets over time and see what you lifted last session for any exercise

How This Works

This gym companion tool tells you exactly what weight to put on the bar today based on your one-rep max (1RM) and your target training intensity (RPE and reps).

It uses the Tuchscherer RPE percentage table to convert your 1RM into the correct working weight. For example, if your squat 1RM is 300 lb and you want to do 5 reps at RPE 8, the tool recommends 244 lb (81.1% of 300).

Log in to automatically pull your last session for any exercise and save today's sets to your training history.

Frequently Asked Questions

It doesn't - the calculation is based on your saved 1RM. What changes is your readiness. If the recommended weight feels too heavy today, trust that feeling and reduce by 5-10%. RPE is a feedback loop, not a fixed prescription.
Use a recent 1RM (within 4-6 weeks). Strength fluctuates with training phases, so an outdated 1RM can lead to recommendations that are too heavy or too light.
Do a working set at a comfortable weight, rate your RPE honestly, and use the E1RM Calculator to estimate your 1RM. A set of 5 reps at RPE 8 gives a reliable estimate.
Research shows 3-5 minutes of rest between heavy sets (RPE 8+) maximizes strength output. The built-in rest timer helps you hit the correct interval without checking your phone repeatedly.