Kysero
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K Y S E R O / T O O L S

What weight should you use?

Start with a set you already performed. Kysero estimates a weight for your target repetitions and effort.

Use the same exercise for both sets. You do not need to select or name the exercise.

Use the weight from the completed set, including the bar.
kg
Reps in reserve: how many more good reps you could have completed.
Advanced options
Choose how many good reps you want to have left after the next set.
The smallest weight step your equipment allows. The result is rounded to it.

Start with a set you already performed. Kysero estimates a weight for your target repetitions and effort.

How the estimate works

Kysero estimates repetitions to failure from completed reps plus RIR, applies the Epley relationship, then solves for the requested repetitions and target RIR. The result is rounded to equipment you can actually use.

What the number cannot know

Technique, fatigue, exercise variation, machines and individual repetition ability all affect performance. Estimates are generally more dependable from lower-repetition sets. Use the result as a starting point, not a guarantee.

Sources and limitations