Evidence-based training, start to finish
Calculate your numbers, build a program around them, and track whether the work’s actually happening. No fluff, no fake precision — every tool and feature is built on published research.
Tools
Free calculators and generators built on published research — 1RM, pacing, macros, splits, and more.
Programs
Build multi-week programs with sets, reps, supersets, and running sessions, then log your training as you actually do it.
Coaching
Invite clients, assign them programs, and see what actually got done — free while we're building this out.
Popular tools
View all 8One-Rep Max Calculator
Estimate your true one-rep max from any set, with a confidence range and a full percentage-based training table.
Running Pace Calculator
Solve pace, time, or distance from any two, see even splits, and predict your finish time at other race distances using Riegel's formula.
Quick Workout Generator
Pick a goal, your equipment, a focus area, and how much time you have — get a balanced session built from real exercise-selection rules, not a random shuffle.