Start at 22, Retire at 40
18 years of accumulation. Standard diversified allocation.
Accumulation
18 years
age 22 → 40
Portfolio at Retirement
$2.7M
Power Law model
Monthly Budget
$8,512
at retirement
Sustainable?
Yes
through age 85
Strategy Comparison
| Strategy | Portfolio at 40 | Sustainable? |
|---|---|---|
| Default (diversified) | $2.7M | Yes |
| Aggressive (100% BTC DCA) | $5.5M | Yes |
| Traditional 60/40 | $913K | No |
What If You Shifted Retirement?
| Retire at | Years | Portfolio | Sustainable? |
|---|---|---|---|
| 35 | 13 | $1.2M | Yes |
| 40 ★ | 18 | $2.7M | Yes |
| 45 | 23 | $5.4M | Yes |
Portfolio Growth Projection
Portfolio Comparison
Model Comparison
| Model | Portfolio at Retirement | Monthly Budget (inflation-adj.) | Sustainable? | Depletion Age | Max Expenses |
|---|---|---|---|---|---|
| Power Law | $2.7M | $9K | Yes | — | $129K/yr |
| CAGR 20% | $1.7M | $9K | Yes | — | $118K/yr |
| Traditional 60/40 | $913K | $9K | No | 49 | $21K/yr |
Decade Summary
| Age | Year | Stocks | Bonds | BTC | Other | Total | BTC Amount | BTC Price |
|---|---|---|---|---|---|---|---|---|
| 22 | 2026 | $50K | $20K | $10K | $0 | $80K | 0.149419 BTC | $135K |
| 32 | 2036 | $189K | $98K | $454K | $71K | $813K | 0.264761 BTC | $1.7M |
| 40★ | 2044 | $301K | $194K | $2.0M | $168K | $2.7M | 0.279536 BTC | $7.2M |
| 42 | 2046 | $90K | $210K | $2.7M | $185K | $3.2M | 0.279536 BTC | $9.8M |
| 52 | 2056 | $0 | $0 | $9.0M | $0 | $9.0M | 0.243691 BTC | $37.0M |
| 62 | 2066 | $0 | $0 | $23.1M | $0 | $23.1M | 0.213245 BTC | $108.1M |
| 72 | 2076 | $0 | $0 | $52.7M | $0 | $52.7M | 0.197932 BTC | $266.1M |
| 82 | 2086 | $0 | $0 | $109.3M | $0 | $109.3M | 0.188997 BTC | $578.1M |
| 85 | 2089 | $0 | $0 | $133.8M | $0 | $133.8M | 0.187011 BTC | $715.6M |
18 Years: From 22 to Retired at 40
The difference between retiring at 40 and 45isn't just 5 more years of work — it's 5 fewer years of portfolio growth AND 5 more years of withdrawals. That double impact makes each year of earlier retirement exponentially more expensive.
With 18 years of accumulation starting at 22, the Power Law model projects a portfolio of $2.7M by age 40. This comfortably sustains $60K/year expenses through age 85.
This is not financial advice. Past performance does not guarantee future results.
Explore related scenarios
You might also like
New to Bitcoin? Start here.
Our free 10-module course covers everything from the basics to self-custody — no jargon, no shilling.
Want to customize these numbers?
Use the full Bitcoin FIRE Calculator to adjust your age, savings, expenses, and growth models. Plus explore our free 10-module Bitcoin course.