Bitcoin halving reduces miner block reward by 50% every 210,000 blocks (~4 years). Next: 2028.
Block rewards: 50 BTC (2009) → 25 (2012) → 12.5 (2016) → 6.25 (2020) → 3.125 (2024).
After 2140, all 21M BTC will be mined — miners earn only transaction fees.
This tool is essential for comparing trades across different assets, fee structures, or holding periods. The annualised return figure puts short and long-duration trades on the same scale for fair comparison.
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.
The 5th halving is estimated around April 2028. The 2024 halving reduced rewards to 3.125 BTC/block.
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