₿ Bitcoin Calculator

Interactive simulation · Power Law · Saylor · ARK · Standard Chartered

BTC $
USD Inflation %/yr
Multiplier 100%
Custom price curve →
Year 3 ($)
Year 5 ($)
Year 10 ($)
Detailed Portfolio Analysis

Starting Position

= 0 BTC
Converted to BTC at the prevailing market price on day one
Total capital deployed via systematic DCA purchases
Duration of systematic investment (max. 120 months = 10 years)
Recurring monthly BTC purchase in addition to DCA (e.g., from salary)
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FIRE Plan · Financial Independence

Portfolio Withdrawals
Monthly portfolio withdrawal · inflation-adjusted annually
Recurring larger expense (e.g., quarterly, semi-annual)
Schedule of periodic withdrawals
Annual tax on net crypto asset gains
Off
Protects principal BTC holdings — only withdrawing from gains
Used for milestone age display and retirement planning
Planned age of retirement
Immediately: withdrawals begin at simulation start · From Retirement: accumulate until retirement, then begin withdrawals
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Visualization

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Monthly Simulation

#YearMonth BTC Price ($) Monthly Exp. ($)Withdrawal ($) DCA ($)DCA (sat)Savings (sat) BTC Sale (sat)Balance (sat) BTC Portf. ($)Pool ($) Total Portf. ($)Return
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Yearly Summary

YearBTC Price ($) Monthly Exp. ($)Withdrawal ($)DCA+Savings ($) Balance (sat)BTC Portf. ($) Consumed ($)Tax ($)Profit ($)Return
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Scenarios

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Privacy Notice

Local storage: This calculator uses your browser's local storage (localStorage) solely to preserve saved scenarios and a price cache. This data never leaves your computer — it is not transmitted to any server.

External requests: The page fetches the live Bitcoin price from the CoinGecko public API, at most once per hour. The price is cached locally in your browser. This request is read-only and sends no user data.

Tracking: This page does not use cookies, analytics (Google Analytics, Meta Pixel, etc.), tracking scripts, or any other data collection mechanism.

Deleting data: Saved scenarios can be removed at any time by clicking the ✕ button next to each scenario, or by clearing your browser's local storage.

⚠️ This is NOT financial advice! For modeling purposes only!
Power Law: Giovanni Santostasi · Saylor: $500K-$1M 2030 · ARK Jan 2026: Base $710K · Std Ch: $250K 2028
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