Comment by latentsea

I learned 17.5k words comprised of ~3k kanji in around 2 years at about an hour a day of review time. That's reviews + new cards, not including time immersing in order to find the daily quota of new vocab which itself was 2 to 3 hours of study.

So, by my calculations for just the Anki time alone it's about 17.5k words split across 730 hours, which comes out to about 23 words and hour or one word every 2.5 minutes.

I've seen a pretty wide variety of people do Anki, and I can say there's a distribution in length of time per card for basically the exact same types of cards among people. The slowest people average around 3x slower than the fastest.