Training Volume Calculator
Calculate sets × reps × load by exercise, compare the session with local history and export a private training summary.
Calculate session tonnage
| Exercise | Volume |
|---|
Recent sessions on this device
Tonnage is one workload measure
Each exercise row uses sets × repetitions × external load. Session volume is the sum of valid rows. This is most useful for comparing similar exercises and counting conventions—not for declaring that one different workout was universally harder or better.
Read the training-volume guide, comparison table and limitations.
Method reviewed 7 July 2026: research on progression of total training volume and ACSM 2026 guidance.
Training Volume FAQ
How is training volume calculated?
Each exercise row uses sets multiplied by repetitions multiplied by external load. Session volume is the sum of all valid rows in the selected unit.
Does higher tonnage always mean a better workout?
No. Tonnage does not capture technique, range of motion, effort, exercise mechanics, rest or whether the added work was recoverable.
Can I compare different exercises by tonnage?
Only cautiously. The same numerical load has different mechanical and muscular demands across exercises, machines and ranges of motion.
How should I record bodyweight exercises?
Choose and document a consistent convention, such as zero external load or an estimated effective load. Do not mix conventions when comparing sessions.
Where is session history stored?
ToolBullet stores history locally in the current browser when storage is available. It is not included in analytics, and clearing site data removes it.