Bitcoin Retirement Calculator

Under a hypothetical 5% annual growth scenario, $50,000 of Bitcoin held for 20 years grows to about $132,665; at 15% per year it reaches roughly $818,327; and at 25% per year it compounds to about $4,336,809. The thousand-fold spread between assumptions is the real lesson: nobody can forecast Bitcoin's long-run return, so a retirement plan should stay viable in the low scenario and treat the high scenarios as upside, not as the base case. Bitcoin's historical path also included multiple 50–80% drawdowns that smooth compounding hides.

Work backward from spending. Covering $50,000 of annual expenses at a 4% withdrawal rate requires a $1,250,000 portfolio — about 12.9 BTC at the calculator's $97,000 baseline price if retirement started today. Future price appreciation shrinks the coin count: under a hypothetical 15% annual growth scenario sustained for 20 years, roughly $76,000 of Bitcoin today — about 0.79 BTC — would compound to that $1,250,000 target. Because that outcome depends entirely on an unknowable growth rate, most planners treat Bitcoin as one sleeve of a retirement portfolio rather than the whole plan.

One Bitcoin is worth about $97,000 at the calculator's baseline price — not enough to retire on today, since a 4% withdrawal produces only $3,880 per year. Held for 20 years under a hypothetical 15% annual growth scenario, 1 BTC would reach about $1,587,554, supporting a $63,502 annual withdrawal at 4%; under a 5% scenario it reaches only about $257,370, or $10,295 per year. Whether 1 BTC funds a retirement therefore hinges entirely on which scenario plays out — a reason to pair Bitcoin with income-producing assets rather than rely on it alone.