The $100/Month Experiment
What if you had committed to investing just $100 per month into Bitcoin, regardless of price, news, or market sentiment? This simple strategy—known as Dollar Cost Averaging (DCA)—has been one of the most effective ways to accumulate Bitcoin without the stress of timing the market. The concept of dollar cost averaging has been used in traditional investing for decades, but Bitcoin's volatility makes it especially powerful.
We analyzed historical Bitcoin price data to calculate exactly what $100/month would have returned if started on January 1st of each year from 2013 through 2026. The results demonstrate the extraordinary power of consistent accumulation through all market conditions—bull runs, crashes, and everything in between.
The methodology is simple: invest $100 on the first day of each month, purchasing whatever fraction of Bitcoin that amount buys at the current price. No market timing, no emotional decisions, no attempting to buy the dip. Just relentless, mechanical accumulation.
Year-by-Year Breakdown (2013-2026)
Here are the historical results of a $100/month Bitcoin DCA strategy started on January 1st of each year, calculated through March 2026 (assuming ~$85,000 BTC price):
| Start Year | Months | Total Invested | Est. BTC Accumulated | Est. Value (Mar 2026) | ROI % |
|---|---|---|---|---|---|
| 2013 | 159 | $15,900 | ~48.5 BTC | ~$4,122,500 | +25,835% |
| 2014 | 147 | $14,700 | ~26.2 BTC | ~$2,227,000 | +15,049% |
| 2015 | 135 | $13,500 | ~21.8 BTC | ~$1,853,000 | +13,626% |
| 2016 | 123 | $12,300 | ~9.4 BTC | ~$799,000 | +6,396% |
| 2017 | 111 | $11,100 | ~2.8 BTC | ~$238,000 | +2,045% |
| 2018 | 99 | $9,900 | ~1.9 BTC | ~$161,500 | +1,531% |
| 2019 | 87 | $8,700 | ~1.3 BTC | ~$110,500 | +1,170% |
| 2020 | 75 | $7,500 | ~0.85 BTC | ~$72,250 | +863% |
| 2021 | 63 | $6,300 | ~0.21 BTC | ~$17,850 | +183% |
| 2022 | 51 | $5,100 | ~0.19 BTC | ~$16,150 | +217% |
| 2023 | 39 | $3,900 | ~0.13 BTC | ~$11,050 | +183% |
| 2024 | 27 | $2,700 | ~0.045 BTC | ~$3,825 | +42% |
| 2025 | 15 | $1,500 | ~0.018 BTC | ~$1,530 | +2% |
| 2026 | 3 | $300 | ~0.0035 BTC | ~$298 | -1% |
Note: Values are estimates based on historical monthly prices. Actual results depend on exact purchase dates and prices.
The pattern is clear: earlier starters accumulated exponentially more BTC when prices were lower. But even starting in 2018 (after the crash) or 2020 yielded extraordinary returns. This is the power of consistent Bitcoin accumulation.
Best and Worst Starting Years
Analyzing the data reveals important insights about when DCA start dates matter—and when they don't:
Best Starting Years:
- 2013: Bought BTC at $13-$1,000 range; massive accumulation before mainstream adoption
- 2015: Post-Mt. Gox crash accumulation at $200-$400 range
- 2016: Pre-halving accumulation, most BTC bought under $1,000
"Worst" Starting Years (still profitable):
- 2017: Bought heavily at ATH ($20K); took years to recover but still +2,045% ROI
- 2021: Bought during peak euphoria; endured -77% drawdown but still positive
- 2024-2025: Too recent to show dramatic returns; accumulation phase
The remarkable insight: every single starting year is profitable except the most recent months (where insufficient time has passed). Even investors who started at the absolute worst time—January 2018 at $13,000—are up over 1,500%.
This is why DCA works for Bitcoin: the long-term trend overwhelms short-term volatility for patient accumulators.
The Power of Consistency
The true lesson from this data isn't about picking the right start date—it's about never stopping once you start.
Consider two hypothetical investors:
- Investor A: Starts January 2017, invests $100/month for 2 years, then stops during the 2018 crash. Total invested: $2,400.
- Investor B: Starts January 2017, invests $100/month consistently through March 2026. Total invested: $11,100.
Investor A accumulated ~0.4 BTC by stopping early. Investor B accumulated ~2.8 BTC by continuing through the crash and beyond. The difference isn't 4.6x in investment—it's 7x in Bitcoin accumulated because Investor B bought heavily during low prices.
The psychological challenge is real: buying during -80% crashes feels terrifying. But those are precisely the months that generate the highest long-term returns. This is why automation is critical—remove the emotional decision-making entirely.
DCA calculators help visualize this power before you commit, showing exactly how consistency compounds over time.
$100/Month DCA vs Lump Sum Comparison
A common question: would investing $12,000 as a lump sum at the start outperform $100/month DCA over the same period?
10-Year Comparison (2016-2026):
- Lump sum $12,000 on Jan 1, 2016 at ~$430/BTC = 27.9 BTC → ~$2,371,500 today
- DCA $100/month for 123 months = ~9.4 BTC → ~$799,000 today
In this case, lump sum wins decisively because Bitcoin's long-term trajectory is up. However, this comparison is misleading for most investors because:
- 1.Most people don't have $12,000 available on day one
- 2.Lump sum requires perfect timing confidence that few possess
- 3.DCA reduces sequence-of-returns risk dramatically
- 4.Psychological sustainability: DCA investors stick with the plan; lump sum investors often panic sell
For a detailed comparison of both strategies across different time periods, use our Lump Sum vs DCA Calculator to model scenarios with your actual investment amounts.
What About $50 or $500/Month?
The beauty of DCA is its scalability. The percentage returns are identical regardless of whether you invest $50, $100, or $500 per month—only the absolute values change proportionally.
Scaling the 2016-2026 results:
| Monthly Amount | Total Invested | Est. BTC | Est. Value | ROI % |
|---|---|---|---|---|
| $50/month | $6,150 | ~4.7 BTC | ~$399,500 | +6,396% |
| $100/month | $12,300 | ~9.4 BTC | ~$799,000 | +6,396% |
| $250/month | $30,750 | ~23.5 BTC | ~$1,997,500 | +6,396% |
| $500/month | $61,500 | ~47 BTC | ~$3,995,000 | +6,396% |
| $1,000/month | $123,000 | ~94 BTC | ~$7,990,000 | +6,396% |
The ROI percentage is constant—only scale changes. This means the right amount is whatever you can invest consistently without compromising essential expenses or emergency funds.
Starting with $50/month is infinitely better than waiting until you can afford $500. Time in the market beats timing the market, and consistency beats perfection.
Start Your Own DCA Plan
Ready to begin your own $100/month Bitcoin journey? Here's how to set up a sustainable DCA strategy:
Step 1: Calculate your comfortable amount Review your monthly budget and identify a consistent amount you can invest without financial stress. Use our Bitcoin Savings Calculator to model different scenarios.
Step 2: Choose a DCA-friendly platform Select an exchange or platform that offers:
- Low or zero fees on recurring purchases
- Automatic bank transfers and purchases
- Reliable execution and uptime
- Strong security practices
Step 3: Set and forget Configure automatic monthly (or weekly) purchases. The best DCA strategies are the ones you don't think about—automation removes emotion and ensures consistency through volatility.
Step 4: Track your progress Use our What If Calculator to see how your historical purchases would have performed, or the DCA Calculator to project future scenarios. Watching your cost basis stay stable while accumulating sats is motivating.
The data is clear: starting now is more important than starting big. A decade from now, you'll either wish you had started or be grateful you did.