Start Here: The Four Foundations of Long-Term Investing
Building wealth through investing comes down to four principles, in order of impact: (1) start early — compound interest rewards time above everything else; (2) invest consistently — dollar-cost averaging removes timing pressure and builds the habit; (3) keep costs low — index funds with 0.03–0.10% expense ratios keep more of your return; (4) stay diversified — owning many assets in a target allocation, then rebalancing it back on track, controls the risk you're taking.
The calculators and guides below cover each of these foundations with real numbers — not theory.
4-Step Process
Start Early
Compound growth rewards time more than amount. $200/month for 30 years at 7% = $243,000. Starting 10 years later at $300/month only reaches $150,000.
Invest Consistently
Dollar-cost averaging — fixed amount every month regardless of market conditions — removes timing pressure and automatically buys more when prices are low.
Keep Costs Low
A 1% annual fee difference erodes 26% of a 30-year portfolio. Index funds (0.03–0.10% ER) dramatically outperform actively managed funds after fees over long periods.
Rebalance Regularly
Markets move; allocations drift. Annual rebalancing restores your target risk level and enforces buy-low discipline — selling what rose and buying what fell.
Investing Calculators
Run Your Own Numbers
Each calculator uses the actual math — no approximations — so you can model your specific situation.
In-Depth Guides
Strategy and Education
Plain-language explainers with real data — no financial jargon, no vague advice.
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Model your monthly investment in 30 seconds
Enter any monthly amount, return rate, and time horizon — the DCA calculator shows your final value, total gain, and year-by-year growth.