Strength
Progressive Overload
Updated 3 Nov 2026 · Source: ACSM position stand (2009) ↗
Enter a starting weight, the size of each increase and how many steps you want to plan. The calculator builds a week by week list, rounded to loads you can put on a bar.
Worked example
- Each step: weight × 1.025, rounded to 5 lb
- 135 × 1.025^8 = 164.5
Where 2.5% and 5% steps lead from 135 lb
| Step | +2.5% each | +5% each |
|---|---|---|
| 0 | 135 | 135 |
| 1 | 140 | 140 |
| 2 | 140 | 150 |
| 3 | 145 | 155 |
| 4 | 150 | 165 |
| 5 | 155 | 170 |
| 6 | 155 | 180 |
| 7 | 160 | 190 |
| 8 | 165 | 200 |
What the term means
Progressive overload means asking your body for a little more over time than it has done before. The extra can come from more weight, more reps, more sets or harder work in the same time. Without some kind of increase, a program tends to keep you where you are.
The 2009 ACSM position stand on resistance training lists progressive overload with specificity and variation as the main principles of progression. A newer ACSM position stand, published in 2026, goes further and names it the most important training variable.
When to add weight
The 2009 stand gives a clear rule. Once you can do the current weight for 1 or 2 reps more than your target, on two training sessions in a row, raise the load by 2 to 10%. Use the smaller step for small-muscle exercises such as curls or raises, and the larger step for big lifts such as squats or deadlifts.
Waiting for two good sessions keeps one lucky day from pushing you up too soon. It also means the step is earned, not set by the calendar.
Small steps add up
The example starts at 135 lb and adds 2.5% per step. After 8 steps it reaches about 165 lb, roughly 29 lb more. With 5% steps the same 8 increases lead to about 200 lb, as the table shows.
The bigger column looks tempting, but steady progress is rarely a straight line. Treat the plan as an upper limit and let the two-session rule decide when you actually move.
When the plates are too big
Bars load in 5 lb jumps if your smallest plates are 2.5 lb. On a 135 lb lift that is a 3.7% step, which fits the guidance. On a 40 lb overhead press it is 12.5%, more than the upper end. For small lifts, add reps first and move the weight only when the reps run well past your target. The plate calculator shows which loads your plates can build.
Other ways to progress
Stalls happen to everyone. When two or three sessions in a row go badly, hold the weight or step back a little before trying again.
- Add a rep to each set at the same weight, then raise the weight and drop back to the bottom of your rep range.
- Add a set, if your weekly volume is low. See how many sets and reps for ranges.
- Keep the weight and reps but cut a little rest, which makes the same work harder.
- Track an estimated max over time with the one rep max calculator, so you can see progress even when your sets change.
Related pages
How Many Sets and Reps, Rest Between Sets, One Rep Max Calculator, Powerlifting Calculator
Questions
How much weight should I add each week?
There is no fixed weekly amount. The 2009 guidance says to add 2 to 10% once you beat your rep target by 1 or 2 reps on two sessions in a row.
Is progressive overload only about weight?
No. More reps, more sets or less rest for the same work all count as doing more than before.
Will following this plan guarantee results?
No plan can promise that. The calculator shows where steady increases would lead, and your own sessions decide how fast you can follow it.
How we calculate: every formula, with its author and year, is on our method page; data sources and their licenses are on sources.
gymnical.com gives estimates from published formulas and public data. It is not medical advice and not a training prescription. Last reviewed November 2026.