Jacked is built for lifters who train for hypertrophy and want fast workout logging, clear progression targets, rest timing, and useful progress history on iPhone.

Can Jacked import my Hevy history?

Jacked includes Hevy import flows for workouts, routines, measurements, exercise notes, and training history context.

Does Jacked support RIR training?

Yes. Jacked supports RIR-aware set logging and progression guidance, with simpler logging modes for lifters who do not want to enter RIR every set.

RIR Calculator

Convert reps in reserve into useful target weights. RPE is common in strength training. RIR is easier for many hypertrophy lifters: how many clean reps did you have left?

Log the set in Jacked and the next target stays with the workout.

Result

87.5 kg x 8 @ 2 RIR

Why: Estimated 1RM is 117.5 kg. RIR 2 equals RPE 8.

Reps	RIR 0	RIR 1	RIR 2	RIR 3	RIR 4	RIR 5
1	115	112.5	110	105	102.5	100
2	112.5	110	105	102.5	100	97.5
3	110	105	102.5	100	97.5	95
4	105	102.5	100	97.5	95	92.5
5	102.5	100	97.5	95	92.5	87.5
6	100	97.5	95	92.5	87.5	85
7	97.5	95	92.5	87.5	85	82.5
8	95	92.5	87.5	85	82.5	80
9	92.5	87.5	85	82.5	80	77.5
10	87.5	85	82.5	80	77.5	75
11	85	82.5	80	77.5	75	72.5
12	82.5	80	77.5	75	72.5	70

Jacked does this automatically while you train.

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How to read the result

Convert reps in reserve into useful target weights. The notes below show the assumptions behind that recommendation.

RIR to RPE conversion

RPE = 10 - RIR. RIR 0 is RPE 10, RIR 1 is RPE 9, RIR 2 is RPE 8, and RIR 3 is RPE 7.

Why use RIR for hypertrophy?

RIR keeps the focus on repeatable hard sets. You can train close enough to failure without turning every set into a max-effort test.

How target weights are estimated

The tool estimates e1RM from your recent set, then calculates the load that matches your target reps and target RIR.

Common mistakes

RIR is only useful when reps are clean and range of motion is consistent. Treat uncertain RIR as lower-confidence data.

Short answers

How do I convert RIR to RPE?

Subtract RIR from 10. For example, 2 RIR equals RPE 8.

Is RIR better than RPE?

Neither is magic. RIR is often simpler for hypertrophy because it asks how many clean reps were left.

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

Estimates e1RM from the logged set, then converts target reps plus target RIR into a rounded load recommendation.

Assumptions

RIR works best when the set used clean reps and the lifter can honestly estimate reps left in reserve.

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