Tools

The engine, free to use

These calculators run the exact functions from SwoleCraft's training engine — the same code the app trusts. No signup, no dark patterns, permanently free.

1RM Calculator

Estimate your one-rep max from any set — with RIR adjustment, like the app does it.

Open tool

Plate Calculator

What goes on each side, from your actual plate inventory. Warm-up ramp included.

Open tool

Protein Calculator

Your evidence-based daily protein range. One input, cited output, zero food-logging guilt.

Open tool

Strength Standards

Beginner to Elite: where your squat, bench, deadlift and press sit for your bodyweight.

Open tool