Dollar-Cost Averaging Calculator
See what regular, automated investing builds over time.
Inputs
How it works
Each month invests a fixed amount and earns the period's return on the running balance. The result is the future value of an annuity.
Frequently asked questions
Are these returns guaranteed?
No — projections assume your inputs hold steady. Real markets fluctuate; treat results as planning estimates.
What's a reasonable long-term return?
Diversified U.S. stock portfolios have averaged 7–10% before inflation over the long run.
Should I include inflation?
Yes if you care about purchasing power. Use a real return = nominal return − inflation rate.
Do taxes affect this?
Inside tax-advantaged accounts (401k, IRA, HSA) growth is tax-deferred or tax-free. Taxable accounts pay annual tax on distributions and on gains when sold.
Does dollar-cost averaging help?
It smooths timing risk and is a behavioral win even if a lump-sum invested earlier has higher expected return.
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View all investment →Results are estimates for educational purposes only and are not financial advice. Verify with a qualified professional before making decisions.
Last updated January 1970