Crypto Portfolio Calculator

Why aggregate-view matters for crypto portfolios

Most crypto holders track individual positions but rarely look at the portfolio as a whole. This creates blind spots: concentration in a single coin can exceed risk tolerance without being obvious, and the overall dollar value often matters more than individual positions because it determines the real stakes of the portfolio. A 70% allocation to one coin is a risk concentration regardless of how well that coin is performing, and knowing that is more useful than knowing the individual price of each holding.

How the math works

Total portfolio value = sum of (quantity × price) for each coin. Allocation per coin = (coin value / total value) × 100. The calculator also flags concentration risk when any single position exceeds 50% of the portfolio — a common threshold used to identify portfolios that behave more like a single-coin bet than a diversified position.

Concentration risk in crypto portfolios

Crypto portfolios tend to be much more concentrated than traditional portfolios. Many holders have 60-80% of their crypto wealth in Bitcoin or Ethereum, with smaller satellite positions. This concentration is not automatically wrong — for long-term Bitcoin maximalists, 100% BTC is a coherent position. But it should be a deliberate choice, not an accidental outcome. The tool surfaces the distribution so you can see whether your allocation reflects your actual conviction or has drifted away from it through price movements.

Correlation between crypto assets

Even a diversified-looking crypto portfolio often behaves like a single asset during major market moves. Bitcoin, Ethereum, and most altcoins are highly correlated — when BTC drops 30%, most of the portfolio drops 30% or more. This is different from traditional portfolio diversification where stocks and bonds often move in opposite directions. For this reason, crypto portfolio allocation is better thought of as a single risk bucket sized against your total wealth, rather than as a diversified allocation within itself.

Why prices are user-inputs

The calculator does not fetch live prices. Each coin's current price is a user input, which means the portfolio snapshot is accurate only at the moment you enter the data. For active position management, most holders use exchange dashboards or portfolio tracker apps with live price feeds. The calculator is useful for periodic check-ins, tax record keeping, and scenario analysis (what if BTC drops 40%?) where entering custom prices is the point.

What the tool does not include

Realised vs unrealised gains are not tracked — the tool assumes current value regardless of what you paid. Tax basis, staking yields, impermanent loss on LP positions, and cross-exchange positions are also not modelled. For tax reporting, a dedicated crypto accounting tool is typically needed. For position-level returns, comparing current value to cost basis manually is straightforward and not the calculator's purpose.