How to read the result
Enter your last set. Get your next target. The notes below show the assumptions behind that recommendation.
Next Set Calculator
Enter your last set. Get your next target. Jacked uses your weight, reps, RIR, goal, and rep range to suggest what to lift next with a clear reason.
Log the set in Jacked and the next target stays with the workout.
How Jacked chooses your next set
The calculator turns your completed reps plus RIR into effective reps to failure, estimates strength, then applies simple progression rules for your target rep range.
When to add weight
Add load when you reach the top of the rep range without overshooting effort. If the target is 8-10 reps at 2 RIR and you hit 10 at 2 RIR, the next move is usually a small load increase.
When to add reps instead
If you are inside the rep range and close to the target RIR, keep the same load and try to add one rep before increasing weight.
When to hold the same weight
Hold load when the set was harder than planned, when RIR is unclear, or when the set is below the top of the range.
How RIR changes progression
RIR separates a strong set from a desperate set. Ten reps with 2 RIR is a better signal for progression than ten reps at failure when the target was controlled effort.
Common mistakes
Do not add weight just because a set felt good if reps are still below range. Do not reduce load after one off day unless reps and RIR both point down.
Short answers
What should I lift next workout?
If you reached the top of your rep range at the planned RIR, add the smallest useful load jump. Otherwise, add reps or hold load.
Is this a progressive overload calculator?
Yes, but it is decision-first: it tells you whether to add weight, add reps, hold, or reduce.
Jacked turns your training history into next-set targets, RIR tracking, rest timing, smart warm-ups, PRs, and progress feedback.
Method, assumptions, and privacy
Method
Uses reps plus RIR to estimate effective reps to failure, then applies rep-range progression rules: add load, add reps, hold, or reduce.
Assumptions
Best signal comes from recent sets in a stable rep range with consistent technique and a clear RIR estimate.
Privacy
Inputs are handled in the browser for the web tool experience. Jacked should only store lifting data when a user chooses to log it in the app.
Check the method before you trust the number. Bad inputs still produce tidy-looking outputs.
This is one set.
Jacked does it for your whole workout: next-set targets, RIR, rest timing, warm-ups, PRs, and progress feedback.
Download Jacked for iPhone