Gym Log tools
Training tools.
Small, practical tools for understanding training data, with the assumptions and sources behind the result kept visible.
Available tools
Interactive training history
Workout analytics
Import a Hevy or Strong CSV locally to explore weekly metrics and source-exercise trends, with automatic source-unit detection and flexible display controls.
Open workout analyticsStrength estimate
One-rep max calculator
Estimate 1RM from a completed set, compare Epley, Brzycki, Lander, Lombardi, Mayhew, O’Connor, and Wathen, and see the range between them.
Open the calculatorCompetition progress benchmark
Powerlifting progress calculator
Compare your current Raw total and lift profile with similar OpenPowerlifting performances and explore observed one-year DOTS, squat, bench press, and deadlift changes.
Estimate progressBody composition estimate
Body fat calculator
Use U.S. Navy circumference, Jackson–Pollock skinfold, or Durnin–Womersley equations with source ranges, measurement instructions, and original citations.
Open the calculatorEnergy planning estimate
Calorie and macro calculator
Estimate resting and maintenance energy, apply an explicit calorie adjustment, and allocate protein, fat, and carbohydrate with cited methods and auditable arithmetic.
Open the calculator