When Moon? — Required Market Cap Calculator

"When moon" is crypto slang for "when will the price explode upward." 589 is a long-running XRP community number — a price target that circulates in social-media theories rather than any official source. We break down where it comes from and how credible each version is (Verified / Partially Substantiated / Speculative) on the 589 Theory page. This calculator lets you test 589 — or any target — against market-cap math.

Pick one of the 8 ISO 20022 coins, enter a target price, and the calculator computes Required Market Cap = Target Price × Circulating Supply, plus the multiplier from today's price. It then compares that required market cap against Bitcoin, Ethereum, and the total crypto market, so you can see at a glance whether the target implies a plausible market cap or one that no asset has ever sustained.

Look at the comparison bars. If your target requires a market cap several times larger than Bitcoin's — or larger than the entire crypto market — the market cap required is the reality check: something unprecedented would have to happen. The calculator doesn't predict prices; it shows you the size of the claim a target makes.

At XRP's circulating supply, a $589 price implies a market cap far beyond the entire crypto market today — plug it into the calculator above and compare the bars yourself. The 589 Theory page walks through each origin story for the number with credibility labels; the short version is that it is a community meme with speculative math behind it, not an analyst target. Not financial advice.

This calculator answers "what market cap does my target price require, and how does that compare to BTC and ETH?" The Market Cap Equivalency Calculator flips the direction: it benchmarks a coin's market cap against real-world assets — gold, silver, the S&P 500, US M2 money supply, and major companies — to show what each price level would mean in traditional-finance terms.