This calculator combines strength-training volume with perceived effort to create an RPE-weighted load for a repeated-load exercise. It first calculates tonnage from sets, reps, and external load, then scales that volume by RPE divided by 10.
The result is useful as a consistent within-program workload index, not as a standardized physiological dose. It does not distinguish movement range, velocity, proximity to failure, rest intervals, exercise complexity, or whether the same tonnage came from many light reps or fewer heavy reps.
1. Enter sets
Use the number of working sets in the block.
2. Enter reps per set
Use the planned or completed reps per set.
3. Enter external load
Enter kilograms lifted per repetition.
4. Rate effort
Enter RPE from 1 to 10.
5. Review weighted load
Compare this index across the same exercise or similar training blocks.
Raw volume = sets × reps × load (kg)
RPE factor = RPE ÷ 10
Weighted training load = raw volume × RPE factor
The weighted value rises when you perform more volume, use more load, or rate the work as harder.
Because RPE is subjective and exercise mechanics differ, avoid treating values from unrelated lifts as directly equivalent.
Given: 4 sets × 8 reps × 75 kg at RPE 8.
Calculation: Raw volume = 4 × 8 × 75 = 2,400 kg. RPE factor = 8 ÷ 10 = 0.8. Weighted load = 2,400 × 0.8 = 1,920.
Result: 1,920 weighted-load units.
It is raw lifted volume multiplied by RPE divided by 10. It is a custom workload index for consistent tracking, not a standardized physiological unit.
The calculation gives harder-rated work more weight than easier-rated work at the same tonnage. It is a simple way to combine external volume and perceived effort.
Yes. Different combinations of sets, reps, load, and RPE can produce the same weighted value, so keep the underlying workout details when interpreting trends.
Run separate calculations for blocks with different loads or use an exercise log that sums each set individually. This page assumes a constant load and rep count.
Use caution. Different exercises impose different mechanical and physiological demands even when the weighted-load number is identical.