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Crypto Portfolio Calculator
Add up everything you hold in one place. Enter each coin with its quantity and prices, then press Calculate to see your total value, profit or loss and how your portfolio is split.
Written by TopicDrill Editorial Team·Updated June 2026
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How the crypto portfolio calculator works
You list each coin once with three numbers: how many units you hold, the average price you paid for them, and the price right now. The tool values every holding at the current price, sums them into a portfolio total, and compares that total to what the coins originally cost. The gap is your unrealized profit or loss, shown both in dollars and as a return percentage.
The allocation donut then breaks the total down by value so you can see which coins dominate. A position that started small can balloon into the bulk of your portfolio after a strong run, which is exactly the kind of concentration the chart makes obvious.
A quick example
Say you hold 0.5 BTC bought at 28,000 dollars, 4 ETH bought at 1,600 dollars, and 50 SOL bought at 95 dollars. At current prices of 42,000, 2,300 and 140 dollars the portfolio is worth about 37,300 dollars against a cost near 26,150 dollars, an unrealized gain of roughly 11,150 dollars, with Bitcoin making up the largest slice of the donut.
Things to keep in mind
Prices move constantly, so this is a snapshot for whatever values you enter rather than a live feed. Use a recent price per coin, remember that selling can trigger taxes on the realized gain, and watch concentration risk if one coin grows too large. For a primer on keeping records straight, see the IRS digital assets guidance. When you do decide to sell, our crypto profit calculator handles the fees and net proceeds.
Frequently asked questions
How is my crypto portfolio value calculated?
For each coin the tool multiplies the quantity you hold by its current price to get that holding's value, then adds every holding together for a single portfolio total. Your cost basis is the quantity times the average price you paid, and the difference between value and cost is your unrealized profit or loss.
What does the allocation donut show?
The donut splits your portfolio by current value, so each slice is one coin's share of the total. It helps you spot concentration at a glance, for example if a single coin quietly grows into most of your portfolio after a rally.
Is this profit realized or unrealized?
It is unrealized, meaning a paper gain or loss based on current prices while you still hold the coins. You only realize a gain or loss when you actually sell, and only then would it typically become a taxable event.
Where do I find the average buy price for a coin?
Most exchanges show an average cost or break-even figure on your holdings page, which already blends every purchase. If not, add up the total you spent on that coin across all buys and divide by the total quantity you received, ignoring later sells.
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