DCA Calculator
Invest a fixed amount on a fixed schedule, whatever the market is doing. Set your rhythm below and see what time does with discipline.
Skip to the calculator ↓What is dollar-cost averaging?
Dollar-cost averaging (DCA) is an investment strategy where you invest a fixed amount of money at regular intervals — weekly, monthly, or quarterly — regardless of the asset’s price. Instead of trying to time the market, you remove the question of when to buy entirely.
The mechanism is simple arithmetic: the amount is fixed, so when prices fall, the same money buys more shares.
The same $500, at three different prices
The months the market drops are the months you accumulate the most. Over time, your average cost smooths itself out — no forecasting required.
Why it works
Rules instead of emotions
Buying high and selling low is the most common way investors erode their own returns. DCA hands the buying decision to the calendar — not to headlines, and not to how the day feels.
Automatic buying on dips
When prices fall, the same dollars automatically buy more shares; when they rise, fewer. Averaging your cost down happens by structure, not by judgment.
Consistency is the only requirement
DCA doesn’t ask you to be smart. It asks you to stay. Its biggest risk was never a market drop — it’s quitting halfway. And staying is a skill you can practice.
One prerequisite: something you’re willing to hold
Dollar-cost averaging answers how to buy, not what to buy. It smooths your cost and removes the pressure of timing, but it cannot turn an asset you don’t believe in into a good investment. Contributing steadily into the wrong choice simply uses discipline to grow a small mistake into a large one.
So before setting up a recurring contribution, it’s worth asking one question: if this fell 40% tomorrow and stayed down for two years, would I keep buying on schedule? If the answer is no, it may not be the right asset for you to average into — because nearly everything DCA does for you happens during exactly that stretch.
Long-term DCA can be applied to broad market ETFs, individual stocks, or cryptocurrency. What matters isn’t the asset class but whether you understand it and are willing to keep holding it while it falls. Volatility varies enormously between assets, and the more volatile the asset, the stronger the pull to stop.
This page does not recommend any specific asset and is not investment advice. What you invest in depends on your own risk tolerance and financial situation — do your own research or consult a qualified professional.
Time does most of the work
The compound curve is deceptively flat in the early years and surprisingly steep later on. Most of the reward in long-term investing comes from time in the market, not timing the market.
Try it below — and watch for the crossover point: the year when compounding starts adding more to your portfolio each year than you do. After that, time is the main contributor.
Hypothetical scenarios only — not a forecast or a guarantee of any return.
After 20 years, you could accumulate
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Your contributions
$0
Growth from compounding
$0
Tap or hover any bar to see that year’s numbers.
This scenario assumes the price rises steadily at the same annual rate, so each later contribution buys fewer shares. Real markets fluctuate — the periods when prices fall buy more shares, and that is exactly when dollar-cost averaging does its work.
What if you stop?
The real risk in DCA is rarely the market falling. It is stopping while it falls. Add a pause and see what it costs.
Contributions skipped
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Ending shortfall
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We’re building this into an app
steady. is a quiet tracker for dollar-cost averaging — log each contribution by hand, watch your average cost take shape, and keep a count of the periods you didn’t miss. No brokerage connection, no access to your money.
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Frequently asked questions
What is dollar-cost averaging (DCA)?
Dollar-cost averaging is investing a fixed amount at regular intervals regardless of price. Because the amount is fixed, you automatically buy more shares when prices are low and fewer when they’re high, which smooths your average cost over time — with no forecasting involved.
Is DCA better than investing a lump sum?
Historically, investing a lump sum immediately has tended to come out ahead more often than not, simply because markets rise more often than they fall. But DCA has different strengths: it reduces the risk and the regret of bad timing, and it matches how most people actually receive income — in paychecks, not windfalls. For most regular earners, it isn’t DCA versus lump sum; DCA is simply the practical way to invest.
How often should I invest — weekly or monthly?
Frequency matters far less than consistency. Over long horizons, weekly, bi-weekly, and monthly schedules produce very similar results. The best schedule is the one that matches your paycheck and that you’ll actually keep — for most people, that’s monthly.
Does DCA guarantee a profit?
No. DCA reduces the risk of putting everything in at a bad moment, but it doesn’t remove market risk — if the asset declines over your entire holding period, DCA won’t turn that into a gain. What it removes is timing decisions and emotion, which is where many investors lose the most.
Does DCA work with any asset?
No. DCA improves how you buy, not what you own. If an asset declines throughout your entire holding period, dollar-cost averaging simply means putting more money into that decline. It suits assets you understand and are willing to hold for the long term, because nearly all of its benefit shows up during the stretches when prices fall.
What annual return should I assume?
There’s no single correct number. Broad, diversified stock indexes have historically returned mid-to-high single digits per year over long periods before inflation, but past performance doesn’t predict future results. A common approach is to run scenarios between roughly 4% and 8% and look at the range, rather than betting on one figure.