Fish It Odds Calculator
Fish It publishes a real catch chance for every one of its 271 fish, which is unusual and genuinely useful — except that nobody has any intuition for the far end of the scale. This converts any of those odds into the two numbers that actually inform a decision: how many casts it should take, and how long that is at the rate you personally fish.
A Crystal Crab in Fish It is 1 in 750,000 per cast, so the average catch takes 750,000 casts — roughly 43.4 days of continuous fishing at 12 casts a minute. You pass the coin-flip point sooner: after about 519,861 casts (30.1 days) you are more likely to have one than not. Enter any fish and your own cast rate below. These are baseline odds — rod, bait and enchant luck shift them by an amount the wiki does not publish.
Crystal Crab
Secret| Chance of at least one | Casts | Time |
|---|---|---|
| 50% | 519,861 | 30 d 2 h |
| 90% | 1,726,938 | 99 d 23 h |
| 99% | 3,453,876 | 199 d 21 h |
Why there are two "how long" numbers
The average and the halfway point are different, and quoting only one of them misleads in opposite directions. For a fish at 1 in 750,000 the average is 750,000 casts, but the point where you are more likely to have it than not is 519,861 — about 69% of the average. That gap is not a rounding artefact; it is the shape of the distribution. A minority of players get very unlucky and drag the average up, so more than half of everyone hunting a fish will have it before the "expected" cast count.
The confidence table extends the same idea. Reaching 99% certainty costs about 4.6× the average — for Bloodmoon Whale, the rarest fish in the game at 1 in 5,000,000, that is over 1,331 days of unbroken fishing at 12 casts a minute. That figure is the honest answer to "can I just grind it out", and for the top of the roster the answer is largely no.
What this calculator does not know
It models independent draws at a fixed rate against the wiki's published baseline odds. That is a real model of a real published number, and it is also all it is. The following are not in it, because none of them is published anywhere we can read:
- Luck stacking. Rod luck, bait luck and Leprechaun / Stargazer / Stormhunter enchants plainly move catch rates — the game sells them on that basis. The wiki publishes the percentages and never the formula that turns them into a modified chance. Nothing here applies them, and nothing here converts a luck percentage into an improved draw rate.
- Bait and enchant side effects. Mutation chance, shiny chance, SECRET Hunter and Shark Hunter modifiers are separate rolls this dataset does not model at all.
- Area and event gating. A fish can only be drawn where it spawns, and event fish only while that event is running. The tool prints where a fish is caught but does not check that you can get there.
- Pity or streak protection. Whether the server nudges long dry streaks is unknown. If it exists, real results beat these figures.
- Your real cast rate. Casts per minute is your input, not our estimate. Reel time varies by fish and by rod speed, and we do not measure auto-fishing throughput.
- Anything about money. There is no sell value or coins-per-hour output here, and there will not be, because the wiki publishes no sell price for a single fish in this game.
Read the output as an honest expectation for an unmodified, uninterrupted grind — a ceiling on the effort rather than a forecast of your session.
Frequently asked
How long does it take to catch a Crystal Crab in Fish It?
Its published chance is 1 in 750,000, so the average is 750,000 casts — about 43.4 days of continuous fishing at 12 casts a minute. The more useful figure is the halfway point: after 519,861 casts, roughly 30.1 days, you are more likely to have caught one than not. Both numbers assume unmodified odds; a high-luck setup will beat them by an amount the wiki does not publish.
How is expected casts calculated?
Each cast is treated as an independent draw with probability p = 1 / (the published "1 in N"). The average number of draws until the first success is 1/p, which is just N. The 50%, 90% and 99% figures come from 1 - (1 - p)^n, solved for n: ceil(ln(1 - target) / ln(1 - p)). The median always lands near 0.69 × N, which is why "expected" and "coin-flip point" are shown as two different numbers.
Does my rod luck change these numbers?
Almost certainly yes, and this tool cannot tell you by how much. The wiki publishes rod luck, bait luck and enchant luck as percentages, and it publishes each fish’s catch chance, but it never publishes the function connecting the two. Rather than invent a conversion, the calculator models the baseline published odds and says so. Treat its output as a ceiling on the grind, not a prediction: a stacked-luck player will get there sooner.
Does a long dry streak make the next cast luckier?
Not in this model, and there is no published evidence it does in the game. Independent draws have no memory, so 10,000 casts without a Secret does not improve cast 10,001. If Fish It runs pity or streak protection on the server it is undocumented, and the effect would be to make real results better than these figures rather than worse.
Why is there no value or coins-per-hour output?
Because the Fish It wiki publishes no sell price for any fish — zero of 271 entries carry one. Without a value there is no honest way to convert casts into coins, and estimating a price from a fish’s rarity tier would be a guess wearing a calculator’s clothes. This tool answers the question the data supports: how many casts, and how long.
What cast rate should I enter?
Whatever you actually manage. Time yourself for two minutes and count. Reel time varies with the fish and with your rod’s speed stat, so a single number is always an approximation — 12 casts a minute is a reasonable manual pace to start from, and auto-fishing throughput is something you should measure rather than take from us.
More Fish It
Catch odds for all 271 fish synced from the Fish It Fandom wiki on August 14, 2026.