How to Use
1RM Estimator
Enter the weight you lifted and the number of reps to estimate your one-rep max (1RM) using your preferred formula.
Advanced 1RM Estimator
Utilizes the RTS (Reactive Training Systems) matrix and asymptotic decay models for load drops. By calibrating for RPE (Rate of Perceived Exertion), the algorithm explicitly accounts for central nervous system (CNS) fatigue and daily readiness during heavy peaking cycles, moving beyond static linear equations.
Percentage Chart
Input a base weight (like your 1RM) to generate a table of working weights based on percentage ranges and increments.
Warm-Up Planner
Set your top working weight for the day and choose a template to get a structured warm-up set sequence.
Advanced Warm Up
Going beyond simple percentages, this protocol is mathematically structured to integrate joint preparation, muscle activation, skill acclimatization, and high-threshold motor unit potentiation for competition-standard top singles.
RIR Translator
Details the biomechanical concept of muscular failure vs. Reps in Reserve. The algorithm prevents overreaching and CNS burnout by strictly calibrating target weights based on fatigue decay curves and readiness from the preceding set.
1RM Estimator
Advanced 1RM Estimator
Percentage Chart
Warm-Up Planner
Warm-Up Planner for Squat, Bench Press & Deadlift
RIR Translator
Next Set Target
About the Developer
PeakLoads is architected and maintained by a professional DevOps & Cloud Infrastructure Engineer. Engineered from a rigorous performance perspective, this platform utilizes a strict Zero-Dependency and Zero-Allocation frontend architecture to guarantee sub-millisecond execution times and eliminate main-thread garbage collection pauses.
Beyond the code, PeakLoads is formulated and fine-tuned using real-world, on-the-field heavy training data from an active, competitive powerlifter bridging the gap between elite systems engineering and absolute strength.