Features Guide
A plain-English tour of the tools on the site: what each one does and what its numbers mean.
By drix · Last reviewed 12 October 2026
Try the CalculatorWhat is Dollar Cost Averaging (DCA)?
Dollar cost averaging means putting a fixed amount into an asset at regular intervals, whatever the price happens to be that day. You give up on trying to "time the market" and buy on a schedule instead, letting the average price work itself out over the long run. It does not remove risk: what you hold still falls when the price does.
The DCA Calculator
The core tool: what a given buying schedule would have been worth.
Investment Amount
How much goes in each period, in your display currency.
Frequency Options
Daily, weekly, bi-weekly (every 2 weeks), or monthly. Every purchase is dated by UTC calendar day.
Date Range
Set a start and an end date. Past dates backtest against real prices; an end date in the future switches the tool over to projections.
Fees
What your platform takes from each buy. Enter it and the plan's results are worked out after it. The fee comparison further down lists what each platform publishes.
Currency Support
Results display in USD, EUR, GBP, CAD, AUD, or JPY. The math always runs in USD and converts at display time.
Price Sources
Coinbase daily closes by default, or Kraken weekly closes with the days in between filled in along a straight line. Before July 20, 2015 both use a daily series from blockchain.info.
Preset Scenarios
Not sure where to start? The preset buttons load a common scenario in one click:
- • $50/week for 5 years: the classic long-term schedule
- • $100/week for 3 years: shorter window, bigger contributions
- • "What if I bought the peak?": three plans that start near the 2013, 2017 and 2021 price highs, on November 30, 2013, December 17, 2017 and November 10, 2021. The last is the day Bitcoin reached $69,000 on Coinbase
Results & Analysis Tools
What the results screen shows you, line by line.
Portfolio Summary
Total invested, BTC accumulated, current value, and profit or loss. One toggle switches the balance between BTC and satoshis, the smallest Bitcoin unit.
Performance Chart
Portfolio value plotted across the whole period, stepping up with each purchase. A second tab shows the Bitcoin price over the same window.
Transaction History
Every purchase in a table: date, BTC price, amount invested, BTC bought, and the running holdings and their value.
CSV Export
Every purchase the plan has made so far, as a spreadsheet for your own analysis. Buys that a plan with a future end date has not made yet are left out. It is a simulation, not a record of trades you made, so it is no use as a tax record.
Share Link
Generates a URL carrying your exact settings. Handy for showing someone a scenario, or just bookmarking your own.
Future Projections
Set an end date in the future and the tool projects forward from three editable annual rates: a loss, no change, and a gain (−20%, 0%, +20% by default). They are assumptions you can change, not forecasts.
Comparison Tools
How the same money would have fared somewhere else.
DCA vs Lump Sum
The same total, dropped in all at once on day one. Sometimes lump sum wins and sometimes DCA does; this tells you which it was for your period.
Asset Comparison
Bitcoin against the S&P 500 total return index (dividends reinvested) and gold over the same window, on daily prices from Yahoo Finance.
Savings Account Comparison
The same schedule paid into a savings account instead, with compound interest. You set the APY (annual percentage yield). It starts at 4.5%, which is a placeholder, not a quoted rate.
Inflation-Adjusted Returns
Your returns in real terms, deflated by the US Consumer Price Index (published by the Bureau of Labor Statistics, fetched from FRED). What's left over is the gain in purchasing power.
Planning & Goal Tools
Set a target, then find out what it takes to get there.
Stacking Goal Tracker
Progress toward a ladder of milestones from 0.001 BTC to 1 BTC, and how long the next one takes if you keep buying the same amount with the price held at today's (in Manual mode, at the price you typed). Arithmetic, not a forecast, and fees are not deducted.
Price Scenarios
Type in a price ($100k, $500k, $1M) and see what your stack would be worth there. It's arithmetic, not a forecast.
FIRE Calculator
Financial Independence, Retire Early. Enter your monthly expenses and it estimates the years to financial independence under the 4% rule, across three editable price scenarios — falling, flat, and rising — so the downside is never hidden.
Unit Bias Calculator
Your stack counted in satoshis (one BTC is 100 million sats), set against an equal split of all 21 million BTC among everyone alive today.
Opportunity Cost Calculator
Pick a daily habit such as a coffee, or type your own daily amount, and see what five years of putting it into Bitcoin each day would be worth today.
Share My Stack
Renders your DCA results as an image you can download: total invested, current value, and return, with the assumptions behind them. Buttons post the same figures to X or Nostr.
Fee & Cost Analysis
Where the money leaks out on its way in.
Exchange Fee Comparison
What Cash App, Strike, River, Swan, Kraken and Coinbase publish about the cost of a recurring buy, totaled for your buying pattern where the platform states a rate.
Cost Basis Tracker
Your average purchase price across the positions you enter, which is your break-even line. Tax rules differ by country, and some count each purchase separately. The tool's own page explains the difference.
Live Dashboard Widgets
Network and market data, refreshed while you watch.
Halving Countdown
New supply gets cut in half roughly every 4 years, on a schedule every node enforces. The widget counts down to the next halving, expected around April 2028.
Live Blocks Feed
New blocks as they're mined, with height, time, transaction count, and size. Refreshes every 30 seconds.
Fear & Greed Index
A sentiment gauge running from 0 (Extreme Fear) to 100 (Extreme Greed). Context, not a trading signal: this site's own pages argue against trying to time the market.
Mempool Fees
What it costs right now to confirm a transaction fast, medium, or slow. Worth a glance before you withdraw from an exchange.
Hash Rate & Difficulty
The security side of the network: current hash rate, difficulty, and an estimate of the next adjustment. More hash rate means a more expensive chain to attack.
Supply Scarcity
More than 95% of the 21 million Bitcoin cap has already been mined. This tracks the exact percentage and how much supply is left.
Purchasing Power
What $100 has lost to US inflation since January 2015, set against the change in Bitcoin's price over the same stretch. Both figures depend on that start date.
Lightning Network Stats
Lightning is a payment network built on top of Bitcoin. This shows its node count, channel count, and total capacity in BTC, as reported by mempool.space.
Bitcoin Dominance
Bitcoin's share of the total cryptocurrency market cap. It rises when Bitcoin's market value grows faster, or falls more slowly, than the rest of the market.
Sat Converter
Your display currency to satoshis and back, at the current price.
Tools With Their Own Pages
Studies and calculators that are not part of the main calculator.
Drawdown Calculator
Every fall of more than 30% from a previous high since 2010, on one price per day, and how long a stack would last if you spent it down.
Start-Date Heatmap
Annualized returns for a $100-a-month plan, by the year it started and how long it ran. Each window is valued at its own end date.
Best Day to Buy
Seven weekly plans, one per weekday, and a week-by-week test of whether any weekday was reliably cheaper. All seven results are published.
Scenario Library
Prebuilt backtests for common amounts and start years, each with its own page and a year-by-year table.
All Calculators
The standalone calculators in one place, each with the question it answers and one limitation stated up front.
Embeddable Widget
A live DCA result card for your own site, in one line of HTML. No API key.
Developer API
Daily price history as JSON or CSV, and full DCA backtests as JSON. No key and no account.
Methodology
Every data source, the formulas behind each figure, and the known limitations.
Educational Resources
Longer reads, for when the numbers start raising questions.
Why Bitcoin?
Where Bitcoin's value comes from: verifiable scarcity, settlement nobody can reverse, portability without permission, and network effects. Plus a scorecard grading the popular claims.
Self-Custody Guide
Why holding your own keys matters, how hardware wallets work, and how to store Bitcoin without losing it.
Mining Guide
Proof-of-work, why halvings matter, and how the difficulty adjustment shapes mining economics.
Bitcoin Adoption Tracker
Two published estimates on one chart: the share of the world using the internet, and the share estimated to own Bitcoin. They are measured in different ways, and the card says so.
Ready to Start?
Enter your numbers and see what a steady buying schedule would have done. No signup, no email, nothing to install.
Open the CalculatorThis tool is for educational purposes only and does not constitute financial advice. Past performance does not guarantee future results. Always do your own research before investing.