WaniKani reset recovery
The reset button is the most underused tool on WaniKani. Most users avoid it because "going backwards" feels bad, but the actual recovery is fast - you're re-burning kanji you already half-know, not learning from scratch. This calculator gives you a concrete estimate so the decision is numerical, not emotional.
About 4 months to re-reach your pre-reset position - usually faster, stronger, and with cleaner foundations than pushing through a broken queue.
Why re-burning is faster than original learning
The first time you study a kanji, you're encoding a new shape, a new meaning, and one or more new readings all at once. WaniKani's mnemonic helps but the heavy lifting is on your brain. Second time through, most of that is recognition - the shape is familiar, the mnemonic instantly clicks, the readings come back.
Community reports converge around 30-60% faster than original learning. The 50% default in the calculator reflects a typical learner re-doing levels they reached within the last year. Older resets - 3+ years gap - push the speedup down to 20-30%.
Picking the right reset target
The heuristic that gets recommended on the WaniKani forums most often: reset to the deepest level where you're confident you can hit 90%+ on a cold review session. Below that, your accuracy will tank and the recovery will be slower than the chart suggests.
For most lapsed users this lands at 5-10 levels below their current position. Returning after a year off, the comfort line is often 15-20 levels lower than where you quit. Err on the side of resetting too deep, not too shallow - re-burning is fast; rebuilding on shaky foundations is slow.
Reset vs grinding through
The real comparison isn't "reset vs status quo" - it's "reset vs grind out a broken queue". A reset from L40 back to L25 with a 1,500-review queue is usually faster andmore pleasant than attempting to clear that queue at 30% accuracy. The calculator shows the reset timeline; compare it mentally to "how long will clearing this queue take if it's no fun?"
If the answer is "probably longer than the reset, and definitely worse mood", reset is the right call.
See your real per-level pace
The default "original days per level" is a guess. For your real per-level pace from history, the Wanilog dashboard graphs every level's duration so you can plug in a number that matches your actual rhythm. Sign in with your API key to see it. Your key stays in your browser.