Progressive overload is real; the straight line is not
Adding load over time is the mechanism by which strength training works, and no reasonable person disputes it. What gets people into trouble is the shape they assume the increase takes. A session-by-session increment is a step function, and if you extend a step function far enough it goes anywhere you like. Five pounds three times a week compounds to 780 pounds added in a year, which nobody has ever done on any lift, and yet the plan that produces that number is the plan a great many people are following in week two.
The plan is not wrong. The extrapolation is. Linear progression works for exactly as long as adaptation supplies more than the increment demands each cycle, and it stops the moment it does not. The interesting question is not whether that happens but roughly when, and that turns out to be arithmetic you can do on the back of an envelope.
The one calculation that matters
Take the increment, multiply by the sessions per week, multiply by 52. That is the yearly gain the plan implies. Now compare it to a plausible yearly gain for someone at your stage. If the plan implies four times what is plausible, then a quarter of a year is roughly how long the plan can run before it is asking for more than a year of adaptation. That crossing point is what the result reports as the week the projection stops being a projection.
The subtlety is what that week means. It is not a stall date. Nobody hits week nineteen and finds the bar welded to the floor. What it marks is the point past which reading the straight line as a forecast requires believing you will get more than one year of progress inside one year. Before that week, the plan is asking for something adaptation can plausibly supply. After it, the plan and reality have to part company somewhere, and the only question is where.
The reference figures, and how rough they are
The yearly percentages behind this are broad orientation drawn from how strength gains typically decelerate with training experience. They are not targets, they are not standards, and they are certainly not a judgement of anyone reading them.
| Training experience | Reference yearly gain | What actually drives the spread |
|---|---|---|
| Under 6 months, or returning after years away | Around 100% | Starting load, how much is skill acquisition rather than tissue |
| 6 to 18 months | Around 35% | Which lift, body weight changes, consistency |
| 2 to 4 years | Around 12% | Programming quality, recovery, injury history |
| 5 years or more | Around 4% | Almost everything, and individual variation dominates |
The variation around these is enormous — larger than the numbers themselves in some cases — because the early figures are dominated by learning the movement rather than by tissue change, and the late ones by factors no table can capture. A beginner starting a squat at 65 lb and a beginner starting at 185 lb are not going to add the same percentage. Set the custom option and put in your own figure if you have better information than a population average, which you probably do about yourself.
What people actually do when linear runs out
The plan does not fail; it changes shape. Common changes, none of which this page is recommending to you specifically, are worth knowing about so the end of linear progression does not read as the end of progress.
- The increment shrinks. Going from 5 lb jumps to 2.5 lb jumps halves the demand per cycle, and a pair of small plates is a cheap purchase compared to the alternative.
- The cycle lengthens. Adding weight weekly rather than every session, or holding a load for several sessions before moving, buys back time for adaptation.
- Progress moves off the load. Adding a rep, adding a set, or improving the quality of the same weight are all increases in demand that do not require the bar to change.
- A lighter week gets scheduled deliberately rather than being forced by a missed session.
All four are ways of making the increment match what adaptation supplies, which is the same principle running underneath the whole thing. The strength training basics guide covers the mechanism in plain language, and the volume and tonnage tracker is where the non-load routes to more demand get counted.
The limits of the model, stated plainly
This is a projection tool for your own numbers and it makes no claim about what your progression rate should be. It cannot see your recovery, your sleep, your age, your training history, what else you are doing in the week, or whether the lift is technically limited rather than strength limited. It cannot tell whether a missed rep was fatigue, a bad setup or a bad day. It has no opinion on whether you should be training this lift twice a week or four times, and any tool that expresses one without seeing you lift is guessing.
It also has nothing to say about pain. Soreness in a muscle belly after a hard session is ordinary. Pain that is sharp, that sits inside a joint, or that is still there several days later is a different category, and the right response to it is a clinician or a physiotherapist rather than a smaller increment.
Questions people ask
Does the week it gives me mean I will stall then?
No, and reading it that way would be a mistake. It is the week by which the straight line has already handed you a full year of plausible progress, which means that continuing to extend the line past it requires believing in more than a year of adaptation per year. Some people stall well before it because of recovery or programming, some run past it because the reference figure was too conservative for them, and most experience a gradual slowing rather than a wall. Treat it as the horizon of the projection rather than a date in your calendar.
Why does adding weight less often let me progress longer?
Because the constraint is not the size of the jump, it is the total demand per unit time. Adding 5 lb every session at three sessions a week asks for 15 lb of adaptation per week. Adding the same 5 lb once a week asks for 5 lb. The second plan runs three times as long before it exceeds what your body can supply, and it arrives at exactly the same weight, just later. This is why lifters who feel like they are progressing slower than everyone else frequently end the year further ahead.
Is a smaller increment better than a bigger one?
Not better, but longer-lived, and this page will not tell you which you should want. A large increment extracts progress faster while it works and hits its ceiling sooner. A small one runs for longer and can feel like nothing is happening week to week. What decides it in practice is often mundane: whether you own plates small enough to make the jump you want. If your smallest pair is 5 lb, your smallest possible change on the bar is 10 lb, which is a large demand on any lift and an enormous one on a press. The smallest weight jump calculator works through what a smaller pair would change.
Should the projection be different for a deadlift and an overhead press?
Yes, and this tool does not attempt it, which is a real limitation. The same absolute increment is a very different relative demand across lifts — 5 lb on a 400 lb deadlift is a quarter of one percent, and 5 lb on a 95 lb overhead press is over five percent. Since the reference gain here is expressed as a percentage of the current load, the arithmetic partially accounts for it, but the underlying rates genuinely differ by lift and no single figure covers them. Running the tool once per lift, with the actual current weight for each, is closer to honest than running it once.
What if I am coming back after a long break?
Returning lifters usually regain far faster than the equivalent untrained beginner, which is why the first option covers both under six months and returning after years away. Regaining a load you previously held is a different process from building it the first time and it commonly runs several times quicker. The consequence for this tool is that the reference figure is likely too low for the first stretch of your return and too high after you catch up, which is a good reason to use the custom option and revise it as you go. It is also a stage where technique, not load, is the thing that limits how fast the return goes safely, and that is not something a projection can supervise.