Bar Speed & VBT Tracker
Velocity-based training: converts bar speed to estimated %1RM, fatigue detection, and optimal load zones.
Inputs
Fill in the inputs and press Calculate to see your science-backed results.
How to use Bar Speed & VBT Tracker
Velocity-based training: converts bar speed to estimated %1RM, fatigue detection, and optimal load zones.
Choose measurements that describe your actual session or situation, confirm the units, then calculate. Read the result alongside its assumptions and use the tool again when your inputs change.
Inputs explained
Mean bar speed (m/s)
Enter a measured or estimated value (minimum 0.1) (maximum 2.5), using the unit indicated in the field label.
Load (kg)
Enter a measured or estimated value (minimum 1) (maximum 500), using the unit indicated in the field label.
Bodyweight (kg)
Enter a measured or estimated value (minimum 30) (maximum 200), using the unit indicated in the field label.
Exercise
Choose the option that matches your context; available options include Squat, Bench Press, Deadlift.
Target zone
Choose the option that matches your context; available options include Max Strength, Strength, Power.
How to interpret the output
Repeat tests under comparable equipment, technique and rest conditions. Estimated strength values are not direct measurements.
Repeat measurements using similar conditions when monitoring trends. Numerical predictions can vary with input accuracy, measurement method and individual circumstances.
Limitations and responsible use
Requires a linear position transducer (GymAware, Tendo) or velocity tracker app for accurate measurements. Estimates are less reliable without proper equipment.
Read the full disclaimerFrequently asked questions
What does the Bar Speed & VBT Tracker estimate?
Velocity-based training: converts bar speed to estimated %1RM, fatigue detection, and optimal load zones.
Which information do I need for this strength tool?
Provide Mean bar speed (m/s), Load (kg), Bodyweight (kg), Exercise, Target zone. Use your own relevant measurements and the units indicated in each field.
How should I interpret the result?
Repeat tests under comparable equipment, technique and rest conditions. Estimated strength values are not direct measurements. Compare results with your goals and other relevant observations rather than using a single output to make a major decision.
Disclaimer: Requires a linear position transducer (GymAware, Tendo) or velocity tracker app for accurate measurements. Estimates are less reliable without proper equipment. Read the medical disclaimer.
Related Resources
