# BTC DCA Engine > Simulate dollar-cost averaging on real daily prices and compare Bitcoin against 21 other assets funded by an identical buy schedule. Every figure is computed from daily closing prices and public index data, not modeled or projected. Every feed, its first reading, refresh cadence and terms are on the data-sources page; rounding rules are in the knowledge base. Historical results are arithmetic on past prices and are not forecasts. ## Tools - [Simulator](https://btcdcaengine.com/app): run a dollar-cost-averaging plan against real history and compare it with other assets funded by the same schedule. - [Knowledge base](https://btcdcaengine.com/docs): methodology — data sources, the engine, risk metrics, and their limitations. - [Data sources](https://btcdcaengine.com/sources): every feed the site ingests — provider, series ids, first reading, refresh cadence and terms — computed from the files the simulator loads. - [Bitcoin investment calculator](https://btcdcaengine.com/bitcoin-investment-calculator): what a one-time Bitcoin purchase on any date since 2014 is worth on the latest close, the worst point on the way, and the same money fed in weekly beside it. - [Ethereum DCA calculator](https://btcdcaengine.com/ethereum-dca-calculator): dollar-cost averaging into Ethereum on its real daily closes, with the identical schedule in Bitcoin beside it, by start year and through Ethereum's drawdowns. - [Solana DCA calculator](https://btcdcaengine.com/solana-dca-calculator): dollar-cost averaging into Solana on its real daily closes, with the identical schedule in Bitcoin beside it, by start year and through Solana's drawdowns. - [XRP DCA calculator](https://btcdcaengine.com/xrp-dca-calculator): dollar-cost averaging into XRP (Ripple) on its real daily closes, with the identical schedule in Bitcoin beside it, by start year and through XRP's drawdowns. - [Agent endpoint](https://btcdcaengine.com/mcp): a Model Context Protocol server (POST, streamable HTTP) with four read-only tools — list_assets, data_status, run_dca, compare_plans. Anonymous use runs 2 plans per call, 50 simulations per address per day; an API key from an account raises both. Every result carries a share link pinned to the data vintage. How to connect: https://btcdcaengine.com/docs?article=agent_access ## Articles - [Bitcoin vs. Nvidia: Monthly Investment Results](https://btcdcaengine.com/blog/bitcoin-vs-nvidia): Compare equal monthly contributions to Bitcoin and Nvidia across common windows, with adjusted stock data, shared dates, and survivor-selection caveats. (Bitcoin vs everything else) - [Bitcoin Mayer Multiple DCA: Does Cash Change Results?](https://btcdcaengine.com/blog/do-smart-dca-buy-rules-help): Compare a frozen Mayer Multiple buy rule with regular Bitcoin DCA across several windows, counting idle cash and explaining the hindsight limitations. (Does DCA actually work?) - [Bitcoin College Savings: CD and 529 Model Limits](https://btcdcaengine.com/blog/bitcoin-vs-cd-529-illustration): Compare Bitcoin with clearly labeled fixed-growth illustrations, then separate historical returns from CD guarantees and 529 account rules. (Bitcoin vs everything else) - [Bitcoin vs. House Prices: Does Your State Change the Answer?](https://btcdcaengine.com/blog/bitcoin-vs-house-prices-by-state): Compare Bitcoin with state house-price indexes using equal contributions, and understand why an index is not the return from owning a home. (Bitcoin vs everything else) - [You panicked, sold Bitcoin. What if you had held?](https://btcdcaengine.com/blog/panic-sold-bitcoin-what-if-i-held): Selling Bitcoin and buying back can help or hurt. We replay 2,467 sell dates, keep the cash contributions equal, and show how to check your own trade. (Does DCA actually work?) - [Bitcoin DCA worst case: how far down it has actually gone](https://btcdcaengine.com/blog/bitcoin-dca-worst-case): Every weekly start date since 2014, marked at its lowest point: how far below cost each plan went, how far the balance fell, and how often it happened. (Does DCA actually work?) - [DCA vs lump sum: which wins, measured on 571 Bitcoin start dates](https://btcdcaengine.com/blog/dca-frequency-and-lump-sum): Lump sum vs dollar-cost averaging: investing at once beat a twelve-month DCA in 68.3% of 571 Bitcoin start dates, but the worst 5% finished 44.3% behind. (Does DCA actually work?) - [Bitcoin DCA calculator comparison: 17 tools, 8 real answers](https://btcdcaengine.com/blog/bitcoin-dca-calculator-comparison): The same plan through every Bitcoin DCA calculator I could find. Only 8 of 17 express a closed window; the five that ran it as written disagree by $1,904. (The tools and the method) - [Bitcoin vs other assets: 15 you could buy, 4 you couldn't](https://btcdcaengine.com/blog/bitcoin-vs-other-assets): The same $50 a week into 19 of the simulator's 22 assets over 11.5 years, ranked. Only 15 were purchasable. Bitcoin finished 2nd. Nvidia won. (Bitcoin vs everything else) - [How long have Bitcoin DCA buyers actually stayed underwater?](https://btcdcaengine.com/blog/how-long-bitcoin-dca-underwater): Every weekly start date since 2014, measured to today: how many buyers are down, how far, and the longest anyone has waited to get back above cost. (Does DCA actually work?) ## About - [About](https://btcdcaengine.com/about): who publishes this, how the notes are made, and what it is not. - [Terms](https://btcdcaengine.com/legal/terms), [Privacy](https://btcdcaengine.com/legal/privacy), [Disclaimer](https://btcdcaengine.com/legal/disclaimer) ## Not advice Matchless Web Studio LLC is not a registered investment adviser, broker-dealer, commodity trading advisor, accountancy firm or law firm. Nothing on this site is financial advice.