Bitcoin Retirement Calculator
Simulate macroeconomic scenarios, adjust inflation, and discover how much BTC you need to retire safely.
Macro Events
Persistent institutional and fund capital inflow.
Clear rules for custody and taxes.
Central banks add BTC to reserves.
Energy integration and network security.
Falling real rates and monetary expansion.
High rates and quantitative tightening (QT).
Access restrictions or aggressive KYC.
Demand shock and deflation.
Critical bug or loss of technical confidence.
Bitcoin Retirement Calculator — How it Works?
The Bitcoin Retirement Calculator projects how much BTC you need to accumulate to ensure a safe monthly income in the future. It combines macroeconomic Bitcoin price trajectories, Base, Bull, and Bear scenarios, inflation, life expectancy, and your monthly BTC or sats contribution.
By entering your age, retirement age, desired income, inflation, and safe withdrawal rate (SWR), the model calculates:
- BTC accumulated by retirement
- Nominal wealth value in each scenario
- Estimated monthly income, adjusted for inflation
- Comparison with your income goal
- Year-by-year projection (chart and table)
- Impact of macro events (ETFs, liquidity, regulation, recession, etc.)
The goal is to show, in a clear and audit-ready way, your potential future purchasing power using Bitcoin as a long-term asset.
What to expect from results
The scenarios display three possible trajectories:
- Base – neutral projection
- Bull – accelerated adoption
- Bear – adverse environment
The report shows:
- Final wealth in BTC and your currency
- Estimated monthly income by 4% rule and Equal Slices method
- Whether your financial goal is met
- A clear chart of your wealth evolution up to age 90
You see exactly how much BTC you need to accumulate to live safely — and how different macroeconomic conditions can affect your plans.
Important Disclaimer
This calculator is an educational financial planning tool and does not constitute investment advice, financial consulting, or a guarantee of future results.
Bitcoin is a volatile asset and all scenarios are hypothetical simulations. Always review your decisions with a qualified professional and practice good self-custody by storing BTC securely.
📌 Model Notes and Anchors
This calculator combines a transparent price trajectory model with macroeconomic toggles and two retirement spending methods. Everything below is editable and designed to be easy to audit.
This tool is for scenario planning; it is not investment advice. Edit parameters to reflect your own view.
Price Trajectory Formula
The anchor ranges in 2028, 2033, 2040, 2050, and 2075 for Base, Bull, and Bear represent directional midpoints based on widely discussed scenarios (ETF adoption, regulatory clarity, reserve diversification, miner economics).
Logarithmic interpolation: we calculate the compound annual growth rate (CAGR) between adjacent anchors and project to your retirement year.
Pret = Pt1 · (1 + CAGR)^(ret−t1)
Macro Toggle Logic
Macro multipliers apply multiplicative adjustments per scenario. Example: if Base scenario has +10% ETF flows and -15% tight liquidity, the net multiplier is 1.10 × 0.85 = 0.935.
- Strong ETF inflows: lifts Base/Bull more than Bear.
- Regulatory clarity: reduces tail risk (Bear).
- Sovereign Reserves: symbolic but powerful adoption (Bull).
- Energy and Mining: reduces operational risk.
- Global Liquidity: correlation with risk assets.
Current Anchors (USD)
- 2028: Base $225k, Bull $450k, Bear $115k
- 2033: Base $425k, Bull $1.05M, Bear $185k
- 2040: Base $800k, Bull $3.25M, Bear $350k
- 2050: Base $1.9M, Bull $10M, Bear $650k
- 2075: Base $3M, Bull $30M, Bear $550k
Portfolio Math
BTC at retirement = Current BTC + (Annual Buys × Years).
Portfolio = Final BTC × Scenario Price.
*All spending values are brought to Present Value (discounted by inflation) to reflect today's purchasing power.
📚 Sources and Further Reading
Bitcoin Emission: Unchained: The 21M supply in code · Bitcoin Magazine: Halving primer.
Safe Withdrawal Rate (SWR): Bengen (1994) PDF.
Spot ETFs (Global): SEC Chair statement · CRS explainer · Reuters: HK initial approvals · FT: HK launches spot crypto ETFs.
Stock-to-Flow (S2F): Emerald: dissecting S2F · MDPI survey.
Mining and Energy: cPower: miners as flexible load · Duke study summary.
Regulation (MiCA): MiCA Papers: implementation dates · Hogan Lovells overview.
ETF Flows: BlackRock IBIT facts · CryptoSlate/Bloomberg on 2024 flows.