Free for lifters
Tools for serious lifters
Plan your next set. Estimate your max. Build a warm-up. Free, ungated, and built to work on your phone between sets.
Live tool
Strength Score Calculator
Enter your lifts across 345 exercises, see your strength level vs population standards, and watch 12 muscle groups light up on the body diagram.
1RM · strength level · muscle map · 345 exercises
Live tool
RPE Calculator
Plan a set, estimate your 1RM, and see the full RTS-style RPE chart with weights projected from your max.
RPE · RIR · target load · backoff sets
Live tool
Lean Body Mass Calculator
Calculate LBM from body-fat %, or estimate with Boer / Hume / James / Janmahasatian. See fat mass, FFMI, and your strength score.
LBM · FFMI · cut targets · body composition
Live tool
Body Recomp Calculator
Calculate recomp calories, macros, training/rest-day targets, viability, and a realistic 12-week timeline.
calories · macros · training/rest split · viability
Live tool
Barbell Weight Calculator
Type a target weight to see the exact plates per side, or tap the plates already on the bar to count the total. kg or lb.
plates · bar math · load-out · reverse count
Coming soon
1RM Calculator
Estimate your one-rep max from any heavy set across Epley, Brzycki, Lombardi and other formulas.
1RM · e1RM · strength benchmarks
Coming soon
Warm-up Calculator
Build a 5-step ramp to any working weight. Powerlifting and bodybuilding templates included.
warm-up · ramp · preparation
Coming soon
Training Volume Calculator
Per-muscle weekly sets across your whole program. Spot weak points and overworked groups.
volume · MEV · MAV · MRV
Coming soon
DOTS Calculator
Bodyweight-adjusted strength score for cross-weight-class comparisons.
DOTS · Wilks · powerlifting
Track everything in Stronger
The tools above plan one decision at a time. The Stronger app logs every set, scores your strength across every muscle group, and tracks the trend.
