Bitcoin & Crypto Calculator built a following around one habit: type in what you paid and what you might sell for, and see the profit or loss before you commit to anything. That plain arithmetic is the whole appeal, no chart reading required. We built Stack Tracker, a free browser version of that same buy-versus-sell math. No install, no signup, and it runs right here on this page.
Use Stack Tracker now
Drag any slider or type a number and the profit or loss updates instantly. Switch to DCA mode to average out two to four buy-ins.
How to use it
Enter a buy price per coin, then either the number of coins you bought or the dollar amount you put in. Enter a sell price of your own choosing and the profit or loss appears immediately in dollars and percent, with a bar chart showing cost basis against sell value. Add a buy fee and sell fee if your exchange charges one.
Switch to DCA mode to model two to four separate buy-ins at different prices. Stack Tracker works out your weighted average cost basis from those entries, then applies the same sell-price math against your total coins. Your last inputs are saved on this device so they are waiting for you next time. Nothing leaves your browser.
How it compares to Bitcoin & Crypto Calculator
Stack Tracker keeps the core habit that makes the original useful: type a buy price, a sell price, and an amount, and read the profit or loss without opening a spreadsheet. The live chart and the DCA averaging mode cover the two calculations people actually reach for.
What we left out is everything built around that core loop in a full app: saved coin lists, live price lookups, portfolio tracking across multiple wallets, and price alerts. Stack Tracker never fetches a live price for you on purpose, since a browser tool with no market feed showing a number that looks current would be misleading. The original app is worth installing once you want live prices pulled in automatically instead of typed in by hand, or you want to track a whole portfolio rather than one trade at a time.
Get the full app
Bitcoin & Crypto Calculator is a free Android app with live price lookups and portfolio tracking built in, so you are not retyping prices every time you check a position.
Frequently asked questions
Can I calculate crypto profit online for free?
Yes. Stack Tracker runs entirely in this page, and every calculation happens on your device as you type. There is nothing to install and nothing to sign up for.
Is this the official Bitcoin & Crypto Calculator app?
No. Stack Tracker is an original tool we built, inspired by the buy-versus-sell math that makes Bitcoin & Crypto Calculator useful. It is not affiliated with, endorsed by, or connected to that app or its developer, and none of its code, art, or branding was reused.
Does it work offline?
Yes, once the page has loaded. Stack Tracker makes no network requests and pulls no live prices, so a dropped connection will not interrupt a calculation already on screen.
Where do I get the current price to enter?
Stack Tracker does not fetch live prices. Check a price source you trust, such as an exchange or a market data site, then type that number into the sell price field yourself. This keeps the tool honest about what it can and cannot know.
Is it free?
Completely. No ads, no accounts, and no paywall on any feature, including DCA mode.
