Strength & Lifting Performance
Submaximal RIR-to-RPE conversions, force-velocity profiling, and specialized peaking cycles.
4 specialized calculators available
RIR to RPE Calculator
Convert between Reps in Reserve and RPE scales, estimate %1RM from set data, and get suggested working weights based on your one-rep max.
Dynamic Strength Index (DSI) Calculator
Calculate the Dynamic Strength Index ratio from ballistic and isometric peak force. Get training emphasis classification and sport-specific benchmarks.
Weighted Calisthenics 1RM Calculator
Estimate your one-rep max for weighted pull-ups, dips, muscle-ups, and push-ups using bodyweight plus added weight with standard 1RM formulas.
Smolov Jr Calculator
Generate a 3-week Smolov Jr schedule with configurable progression, rounded loads, and optional start dates for planning and journaling.
About Strength & Lifting Performance Calculators
Strength and lifting performance tools help lifters quantify maximal force output, autoregulate daily training loads, and structure multi-week peaking blocks without guesswork.
Whether you are translating Reps in Reserve (RIR) into percentage 1RM targets, evaluating ballistic vs. isometric force production via the Dynamic Strength Index (DSI), or running a 4-week Smolov Jr. specialization cycle, these calculators turn sports-science formulas into actionable bar weights.
How to Choose the Right Tool
Autoregulating Working Sets
Use the RIR to RPE Calculator to map your perceived effort and reps-in-reserve to estimated %1RM and working weights.
Peaking a Specific Lift
Use the Smolov Jr. Calculator or Weighted Calisthenics 1RM Calculator to generate structured weekly set-and-rep progressions.
Profiling Strength vs. Ballistic Power
Use the Dynamic Strength Index (DSI) Calculator to determine whether your programming should emphasize heavy maximal strength or explosive plyometric training.