Training Volume Calculator

Volume is the lever that drives most of your muscle and strength gains, and it is the one most people guess at. This calculator does two jobs. It turns sets, reps and load into session tonnage, the total weight you moved. And it takes your weekly hard sets for a muscle and shows where the week sits against the bands that matter. Enter the numbers above to see both.

Tonnage in one number

Tonnage is sets times reps times load. Five sets of five at 100 kg is 2,500 kg moved in that session. It is a blunt measure, but a useful one. Track it across a block and you can see whether the work is climbing, holding or quietly slipping.

Use tonnage to compare like with like. Squat tonnage against last month's squat tonnage tells you something. Squat tonnage against bench tonnage tells you almost nothing, since the loads live on different scales. Keep it lift by lift.

Weekly hard sets and the MEV, MAV, MRV bands

For building muscle, the count that maps best to growth is weekly hard sets per muscle, where a hard set means a set taken close to failure. Three landmarks frame the range. MEV is the minimum effective volume, the floor that produces growth, often around 10 sets. MAV is the adaptive range where most progress happens, roughly 14 to 20 sets. MRV is the maximum recoverable volume, the most you can absorb in a week before fatigue outruns the gains, near 22 sets for many lifters.

Read these as guidelines, not law. Your numbers shift with training age, the muscle in question, sleep, and how much life stress you carry that week. The bands give you a starting map, then your own recovery tells you where you live.

Putting it to work

Spend your blocks in the MAV range and add load or reps before you add sets. When reps stall and joints start complaining, you are near your ceiling, and that is the signal to pull back. Pair this with the one rep max calculator to set your loads and the RPE calculator to judge how hard each set was.

When the week-to-week numbers tell you fatigue is winning, read When to Deload and plan the back-off before it plans itself.