This estimator summarizes one repeated-load strength exercise as total volume and then normalizes that volume by body mass. The resulting score represents kilograms lifted across the entered reps for each kilogram of body mass, making it easier to compare sessions when body mass differs.
It is a volume score, not a direct measure of maximal strength, technique, power, or training quality. Exercises with different ranges of motion, machines, bars, assistance, tempo, or rep difficulty should not be compared as if their volume scores were interchangeable.
1. Enter working sets
Count the sets performed at the entered load and rep count.
2. Enter reps per set
Use the repeated reps for this block of work.
3. Enter load
Use kilograms of external load per repetition.
4. Enter body mass
Use kilograms to normalize the volume.
5. Review volume and score
Use total volume for session tracking and the relative score for same-exercise comparisons.
Total reps = sets × reps per set
Total volume (kg) = sets × reps × load (kg)
Performance score = total volume ÷ body mass
The score is the session volume expressed as multiples of body mass; a higher score means more volume relative to body mass.
Compare the score mainly within the same exercise and similar execution conditions.
Given: 5 sets × 5 reps × 100 kg, body mass 80 kg.
Calculation: Total reps = 25. Volume = 5 × 5 × 100 = 2,500 kg. Score = 2,500 ÷ 80 = 31.25.
Result: 31.25 points, representing 31.25 kg of lifted volume per kilogram of body mass.
It measures total lifted volume divided by body mass. It is a relative volume index, not a test of one-repetition maximum strength.
That is usually not useful because movement range, muscle involvement, and loading patterns differ. Compare the same exercise under similar conditions.
Calculate each block separately or use a more detailed log that sums set-by-set volume. This calculator assumes one repeated set-and-rep pattern at one load.
It provides a simple normalization, but it does not fully account for body composition, leverage, training age, or exercise-specific scaling.
Include only the sets you intentionally want represented in the volume score. For consistent tracking, use the same inclusion rule each session.