RNGdle Rarity Calculator

How rarity is decided

RNGdle draws every roll from the same uniform pool: the integers from 0 to 1,000,000, each with exactly the same 1-in-a-million chance. That means no number is harder to draw than another. When we say a number is "rare", we mean it belongs to a small, special club defined by its properties — not that the dice are loaded.

This site grades every number with a transparent scoring model. A prime is worth 2 points, a palindrome 3, a perfect power such as 10,000 = 100 × 100 is worth 3, an unbroken digit run like 123,456 is worth 4, and a number made of one repeated digit like 55,555 is worth 4. Points from independent properties add up: 23 is both prime and a two-digit run, so it scores 6. Six cult landmark numbers — 0, 42, 69, 1337, 777,777 and 1,000,000 — skip the scoring queue and are Mythic outright.

Scores then map to tiers: 0 points is Common, 2 is Uncommon, 3 is Rare, 4–5 is Epic, 6 or more is Legendary, and the landmarks are Mythic. The percentile works the same honest way. The calculator scores all 1,000,001 possible numbers with exactly the model above, counts how many are less rare than yours, and reports that share. A roll that is "rarer than 92% of all rolls" beats 92 out of every 100 possible numbers.

One honest caveat: these tier boundaries are dleverse's model, chosen because they are explainable and verifiable — every chance on this page was computed from the complete range, never sampled or guessed. If official RNGdle rules are ever published, the model will be re-tuned to match them.

Which numbers are rarest

If you ranked all one million rolls by the model above, the podium would be crowded with landmarks and double-property numbers. The table below is computed directly from the full range — these are the rolls a player would screenshot:

Notice how small some of the champions are: 4, 9 and 11 earn their places through rare property combinations, not size. Rarity in RNGdle is about what a number is, not how big it is. The rarest numbers page ranks the best — and the most boring — rolls and explains how to read your percentile.