Altcoin ROI = ((Sell price − Buy price) / Buy price) × 100. Factor in exchange fees and taxes.
Buy ETH at
Use this calculator before executing any trade — not just after. Knowing the exact net proceeds after fees and estimated taxes gives you the true profit figure, not the gross amount that the exchange displays.
The most expensive error is computing profit without accounting for trading fees. Fees on both entry and exit trades reduce net profit — and at scale, they represent a significant portion of gross gains. Always input accurate fee rates.
A trader holds a position that has doubled from the entry price and wants to know the exact net proceeds after the platform's 0.15% trading fee and an estimated 20% capital gains tax rate. The calculator returns the exact take-home figure — not the gross gain that the exchange UI displays.
Profit = (Sell price − Buy price) × Amount. ROI % = (Profit / Investment) × 100.
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