What this is
A built-in 1RM calculator with weighted calisthenics and barbell modes plus multi-formula comparison.
Become harder to break.
Built-in training tool
1RM Calculator With Formula and RPE Context
Strength estimates are only useful if they translate into actionable training loads. untraind combines formula comparison, weighted calisthenics support, and an RPE table in one built-in tool.
Training tools that stay out of the way.
Train offline. Track everything. Keep going.
No separate ad-heavy utility apps. Keep focus where training happens.
What this unlocks
Faster load planning, clearer intensity targets, and direct working-weight guidance from one recent set.
Why and when to use it
Use it when you need practical load targets for top sets, backoff work, or RPE-driven strength sessions.
Become harder to break.
From one set to usable working weights
The tool estimates 1RM across three formulas, supports bodyweight-aware calisthenics math, and maps the result into an RPE table so you can pick next-set loads quickly.
Weighted calisthenics and barbell modes are both built in.
Switch modes depending on whether bodyweight is part of the lifted load, then compare total and added-weight outputs.
Three formulas are visible side by side.
Epley, Brzycki, and Lander estimates are shown together so you can choose a conservative or aggressive target intentionally.
RPE table is generated from your estimate.
Use the built-in table to pick practical working weights by rep target and effort level without manual spreadsheets.
1RM calculator FAQ
Does this support weighted pull-ups and dips?
Yes. Weighted calisthenics mode includes bodyweight in the total load and shows the added external load separately.
Why show multiple formulas instead of one number?
Different formulas behave differently across rep ranges. Seeing all three helps you choose a target with context.
Can I turn the estimate into next-set weights quickly?
Yes. The built-in RPE table converts your estimate into actionable working weights for common rep targets.
Start before you feel ready
Not done. Not even close.
untraind keeps the workout useful after the motivation fades. Build the session, run it cleanly, and keep the evidence on your phone.