Crypto Portfolio Rebalancing Calculator
Find exactly how much Bitcoin or Ethereum to buy or sell to restore your target allocation. Use this when market moves have drifted your crypto holdings away from your desired percentages.
About this calculator
Portfolio rebalancing ensures your holdings match your intended risk profile. When asset prices move, actual allocations drift from targets. The calculator computes the dollar deviation for each asset: Deviation = |totalValue × (targetAllocation / 100) − currentValue|. For Bitcoin: if your target is 60% of a $10,000 portfolio, the ideal BTC holding is $6,000. If you currently hold $7,000 in BTC, you are $1,000 overweight and should sell that amount. The total rebalancing volume sums the absolute deviations across BTC and ETH, giving you the gross dollar amount of trades needed to restore balance. Keeping allocations aligned helps manage concentration risk without guessing.
How to use
Suppose your portfolio is worth $10,000. You hold $7,000 in BTC and $2,000 in ETH, targeting 60% BTC and 30% ETH. Ideal BTC = $10,000 × 60% = $6,000 → you are $1,000 overweight BTC (sell $1,000). Ideal ETH = $10,000 × 30% = $3,000 → you are $1,000 underweight ETH (buy $1,000). Total rebalancing volume = |$6,000 − $7,000| + |$3,000 − $2,000| = $1,000 + $1,000 = $2,000. Execute those two trades to restore your target mix.
Frequently asked questions
How often should I rebalance my crypto portfolio?
Most investors rebalance either on a fixed schedule (monthly or quarterly) or when an asset drifts more than 5–10 percentage points from its target. Crypto markets move fast, so threshold-based rebalancing often makes more sense than calendar-based. Frequent rebalancing can trigger tax events and trading fees, so weigh those costs against the benefit of tighter allocation control. Many platforms offer automated rebalancing to reduce the manual effort.
What does rebalancing volume actually mean for my trades?
Rebalancing volume is the total dollar amount you need to trade across all assets to restore target weights. It is not the same as your net cash flow — it includes both the sell side and the buy side. For example, $2,000 in total volume might mean selling $1,000 of BTC and buying $1,000 of ETH. Understanding gross volume helps you estimate transaction fees before you execute, since exchanges charge on both legs of the trade.
Why should I keep target allocations in a crypto portfolio?
Target allocations enforce a disciplined buy-low, sell-high behavior automatically: when BTC surges, you trim it; when ETH drops, you add to it. This systematic approach removes emotional decision-making from investing. It also keeps your portfolio's risk level consistent — an unchecked BTC position can grow to dominate total risk. Research on traditional portfolios consistently shows that disciplined rebalancing improves risk-adjusted returns over time, and the same principle applies to crypto.