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Adding weight too early costs you technique and reps. Adding it too late costs you months. There are four signals that settle it without guessing.
Add load when: you hit the top of your rep range on every set, your last rep still looks like your first, the set finishes at around RPE 7–8 rather than a grind, and you have done it two sessions in a row.
Not the first set — every set. Hitting 3×10 when your range is 8–10 means the weight has been beaten. Hitting 10, 8, 7 means it has not. Repeat the session and let the back sets catch up.
A long-standing coaching heuristic: if you can complete two extra reps beyond your target on the final set, in two consecutive sessions, the load is too light. It is deliberately conservative, which is what makes it useful — it filters out the good day you happened to have.
| RPE | What it feels like | Action |
|---|---|---|
| 6 or below | 4+ reps left in the tank | Add weight now |
| 7–8 | 2–3 reps left | Ideal working range |
| 9 | 1 rep left | Hold here; add reps before load |
| 10 | Nothing left, form breaking | Too heavy — back off |
If your last set of the week regularly finishes at RPE 6, you are training and not progressing. The full explanation of the scale is in what is RPE.
The rep that qualifies is the rep that looked like the others. Depth, bar path, tempo and control are the currency; if the tenth rep bought its extra range from your lower back, it does not count. This is the signal people skip, and it is the one that decides whether the next twelve weeks are progress or an injury.
Roughly 2–10% of the current load: about 5 kg on squats and deadlifts, 2.5 kg on bench, row and overhead press, and micro-plates or reps on dumbbell and cable work where the stack increments are too coarse. Then drop to the bottom of your rep range and climb again.
Feeling motivated. The best sessions to add weight are frequently the boring ones where the numbers simply say you earned it.
When you can complete the top of your rep range on every set, with the last rep looking like the first, at an effort of roughly RPE 7 to 8, and you have done it in two consecutive sessions. Meeting all four conditions means the load has genuinely been beaten.
If you can perform two more reps than your target on the final set, in two consecutive sessions, the weight is too light and should be increased. It is intentionally conservative so that a single good day does not trigger a premature jump.
Most working sets sit best at RPE 7 to 8, meaning two to three reps left in reserve. Consistently finishing at RPE 6 suggests the load is too light; regularly hitting RPE 10 with form breakdown suggests it is too heavy.
No. Technique is the ceiling on load, not the other way round. A rep achieved through reduced range of motion or compensations is a different exercise, and adding weight from there tends to entrench the fault rather than build strength.
All four signals depend on knowing exactly what happened last session. NutriMacro puts your previous sets, reps and RPE for that exercise on screen while you are still standing at the rack, so the decision takes a second rather than a memory.
NutriMacro is a nutrition and training tracker for iPhone and Android. It logs food by barcode, photo or search, counts food in slices and units rather than grams, and keeps strength training, GPS activities, sleep and recovery in the same daily view. It runs in the language of your phone across 108 countries.
General training guidance for healthy adults. If you have an injury, a health condition or are new to lifting, get coaching on technique before chasing load.
Read next: How often to add weight What is progressive overload? What is RPE?
