Games and odds · free tool

OK Win Probability Calculator: Many Tries

Updated 8 October 2026 · 5 minute read

Type the chance of one try, the number of tries and the question: at least once, exactly k, k or more, k or fewer or never. It opens on a 45% round, where at least one win in five tries is 95.0% and five in a row is 1.85%.

Tool · runs in your browserNothing is uploaded
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Every try has the same chance and does not depend on the ones before it. Type the chance your own game or situation has: the starting figures are examples. A 1-in-6 chance is 16.67%.

95.0%chance it happens at least once in 5 tries
5.03%chance it never happens in 5 tries
2.25times it happens on average in 5 tries
0 to 4times it happens in 5 tries, in 95 runs out of 100
1.85%chance of 5 in a row somewhere in 5 tries
4tries before at least one is 90% likely

In 5 tries with a 45% chance each, the chance that it happens at least once is 95.0%. On average it happens 2.25 times, and in 95 runs out of 100 it happens between 0 and 4 times. A streak of 5 in a row turns up somewhere in those tries 1.85% of the time.

Chance of each count in 5 tries at 45% each
Times it happensExactly this manyThis many or moreThis many or fewer
05.03%100%5.03%
120.6%95.0%25.6%
233.7%74.4%59.3%
327.6%40.7%86.9%
411.3%13.1%98.2%
51.85%1.85%100%

Check it with pretend runs

Pretend runs make every try with a random number from your browser and the chance above, then count what happened. There is no money in it, and it is not any app’s game. The exact figures above never change; the pretend ones wobble from press to press, and that wobble is what chance looks like.

“It has not come in nine rounds, so it must come soon.” The feeling is old and the sum behind it is short. This tool does the sum for any chance and any number of tries. It predicts no round. The tools page lists the others.

Where did the chance come from?

The tool needs one number from you: the chance of a single try, in percent. Say where yours came from.

  • A rules screen on your own phone, giving a chance for each result. Type it. A “1 in 8” becomes 12.5: divide 100 by the second number. At the time of writing (8 October 2026) we read no OK Win rules, so every chance on this page is an example.
  • An RTP percentage on a tile. Do not type it. The page labels it RTP, an average over a very large number of plays. We cannot check it, and it is not the chance of one round.
  • A chat message that calls a colour or number “due”. Work out the chance first. If the message carries an address, score it in the link checker before anything else.
  • No number anywhere. Then no sum can be done, and that is itself an answer.

The opening case, count by count

A 45% round tried five times. “At least one win” is 95.0%, which is 100% minus the 5.03% chance of five losses in a row.

Wins in 5 triesExactly this manyThis many or more
05.03%100%
120.6%95.0%
233.7%74.4%
327.6%40.7%
411.3%13.1%
51.85%1.85%

On average 2.25 wins turn up. Four tries are enough to make at least one win 90% likely.

The “it must come soon” sum

Take a chance of 1 in 10. These are chances of at least one hit, counted from a fresh start:

TriesAt least one hit
110.0%
1065.1%
2087.8%
3095.8%
4499.0%

Read it the other way round and the tool’s last tile answers: 22 tries make a 1-in-10 chance 90% likely, and 7 already make it better than even. The chance climbs because a hit has more tries to land in. It does not climb because earlier misses leave a debt. Type 1 try and the answer after nine misses is still 10.0%. Rounds drawn afresh, as such rounds are commonly described, owe nothing to the last ones. We cannot say whether OK Win’s are drawn that way.

Streaks are longer than they feel

A colour that shows on 4 digits of 10 misses 60% of the time. Type 60 as the chance and 7 as the streak:

  • seven misses in a row in just seven rounds: 2.80%
  • seven misses in a row somewhere in 60 rounds: 49.2%
  • somewhere in 300 rounds: 97.3%

Sixty rounds is an hour if a round lasts a minute. A banner title on the Activity tab, “WINGO 1Minutes Winstreak Bonus”, hints at that length, but we read no rule that sets it. A run that looks rare while you watch it is ordinary across an evening, which is why a channel can always find one to show you. The Wingo guide applies the same idea to a win-streak banner.

Choosing the question

You are asking…Pick
Will it come at all in n tries?At least once
Will it come exactly k times?Exactly this many times
Will it reach a target of k?This many times or more
Will it stay at or under k?This many times or fewer
Will it never come?Never

What this calculator cannot do

It assumes one fixed chance and tries that do not affect each other. It cannot tell you the chance of anything on OK Win’s page, and it makes no forecast, so a “hack” that sells results is selling a story the hack guide takes apart. To test a record of wins against a payout, use the win rate calculator.

Counting your chances before a session? Settle the number of rounds first. When the platform’s page opens, read its address bar.

Log in or register on OK Win

Opens the platform’s own page in a new tab. Referral link. 18+ only.

Common questions

A game picks one digit from 0 to 9. What chance do I type for my digit?

Type 10, if the ten digits are equally likely and each round is drawn afresh, which is how such rounds are commonly described. We read no OK Win rules, so check your own rules screen. Over 20 rounds the chance that your digit shows at least once is then 87.8%.

Why is “at least once in 5 tries” 95.0% when each try is only 45%?

Because the question is the opposite of five misses in a row. A miss is 55%, five in a row is 0.55 to the fifth power, which is 5.03%, and what is left is 95.0%. “At least once” is about the whole run of tries, not about any one of them.

After nine misses at 10%, is the tenth try more likely to hit?

No. Type 1 try and the answer is still 10.0%. The 65.1% figure in the table is for ten fresh tries; once nine are behind you, one is left, and it carries its own 10.0%. Nothing is owed to you for the misses.

How many tries make a 1% chance more likely than not?

Sixty-nine. At 1% a try, 69 tries give a better than even chance of at least one hit, and 100 tries give 63.4%. Reaching 90% takes 230 tries. A small chance needs a long run before it becomes likely.

What does the range of “95 runs out of 100” mean?

It is the span of counts that 95 or more runs out of 100 fall inside. On the opening case it is 0 to 4 wins in 5 tries, so a count of 5 lands outside it, 1.85% of the time. It describes a count over many runs and forecasts nothing about your next five tries.

Does the streak box count wins or losses?

Whichever you call a success. To ask about a run of misses, type the chance of a miss. A colour that shows on 4 digits of 10 misses 60% of the time, so type 60 and a streak of 7: the tool gives 2.80% for seven misses in the first seven rounds and 49.2% somewhere in 60.

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