The calculators run in the browser on the full daily price history and the current model fit. Every result can be shared as a link that reopens the calculator with the same inputs; nothing is stored. Switch between US dollars and euros at any time.

Date

Enter any day from 2010 to 2060. For past days it shows the actual close, the deviation from trend and the corridor position; for future days the trend, bands, floor and ceiling. Example: 1 January 2030 gives a trend of $360,010.

Open the calculator: Date →

Target price

Reverses the formula: when does the trend reach a price? $500,000 on 21 March 2031, $1,000,000 on 9 January 2034. The floor would only reach one million on 18 March 2037.

Open the calculator: Target price →

One-off buy

What would an amount invested on a past day be worth today — with the bitcoin amount, the multiple and the annual return, plus the value if the price sat on the trend at a future date.

Open the calculator: One-off buy →

Savings plan (DCA)

Monthly purchases at the daily close: total invested, bitcoin stacked, average price and value. Future instalments use the trend value.

Open the calculator: Savings plan (DCA) →

Withdrawal

How long do holdings last if a fixed amount is sold every month? Four price paths side by side: today's price, the floor, today's position relative to trend, and the trend itself.

Open the calculator: Withdrawal →

Bitcoin needed

The withdrawal in reverse: how much bitcoin covers a monthly amount for a chosen number of years, optionally rising every year? Shown for the same four price paths, with today's value of the holdings needed.

Open the calculator: Bitcoin needed →

Note: Model values, not a forecast and not investment advice. The model describes the corridor Bitcoin has traded in; it does not predict any single day.

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