📈 Difficulty Adjustment & Block Rewards
Understand how networks maintain consistent block times
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Bitcoin maintains a ~10 minute block time through automatic difficulty adjustments and incentivizes miners with block rewards that halve every 4 years.
Difficulty Adjustment Mechanism
Every 2,016 blocks (~2 weeks), Bitcoin recalculates mining difficulty to maintain the target block time of 10 minutes.
Blocks too fast
More miners joined → make target harder
Blocks too slow
Miners left → make target easier
Perfect timing
Avg 10 min → keep same difficulty
🎰 Interactive: Mining Probability Calculator
Adjust your hashrate to see your chances of finding blocks:
Win Probability
0.000025%
Per block
Expected Blocks
0.00
Per day
Average Wait Time
27777.8
Days
Network Hashrate: 400 EH/s (400 million TH/s)
Block Time: 10 minutes average (144 blocks/day)
Block Rewards & Halving
Miners receive newly minted Bitcoin as a reward. This reward halves every 210,000 blocks (~4 years), creating a predictable supply schedule.
📅 Interactive: Reward Timeline
Current Reward
3.125 BTC
Next Halving In
210,000
blocks
Next Event: Block 1,050,000 (~2028)
New Reward: 1.5625 BTC per block
Block 0
2009
50 BTC
Block 210,000
2012
25 BTC
Block 420,000
2016
12.5 BTC
Block 630,000
2020
6.25 BTC
Block 840,000
2024
3.125 BTC
← Current
Block 1,050,000
2028
1.5625 BTC
Block 1,260,000
2032
0.78125 BTC
Block 1,470,000
2036
0.390625 BTC
Why Halving Matters
- •Scarcity: Creates predictable, decreasing supply (max 21M BTC)
- •Inflation Control: Reduces new Bitcoin entering circulation over time
- •Miner Economics: Forces efficiency as rewards decrease (fees become more important)
- •Final Halving: Around year 2140, block rewards will reach zero (miners earn only fees)