Base Fee Calculator
Calculate and predict Ethereum base fee changes based on block utilization using the EIP-1559 algorithm.
Block Parameters
Projection Settings
Base Fee Formula
nextBaseFee = baseFee + baseFee * (gasUsed - targetGas) / targetGas / 8
Max change per block: +/- 12.5%
Next Block Base Fee
25.0000 Gwei
+0.00% change
Current Base Fee
25.0000 Gwei
Block Utilization
50.0%
Gas Used
15,000,000
Fee Change
+0.0000
Base Fee Projection
Block +1
25.6250 Gwei(+2.50%)
Block +2
26.2656 Gwei(+2.50%)
Block +3
26.9223 Gwei(+2.50%)
Block +4
27.5953 Gwei(+2.50%)
Block +5
28.2852 Gwei(+2.50%)
Block +6
28.9923 Gwei(+2.50%)
Block +7
29.7171 Gwei(+2.50%)
Block +8
30.4601 Gwei(+2.50%)
Block +9
31.2216 Gwei(+2.50%)
Block +10
32.0021 Gwei(+2.50%)
Projection assumes 60% average utilization
Utilization Scenarios
30% util
23.7500 Gwei(-5.00%)
40% util
24.3750 Gwei(-2.50%)
50% util
25.0000 Gwei(+0.00%)
60% util
25.6250 Gwei(+2.50%)
70% util
26.2500 Gwei(+5.00%)
80% util
26.8750 Gwei(+7.50%)
90% util
27.5000 Gwei(+10.00%)
ETH Burn Rate
Per Block0.3750 ETH
Daily Burn2700.00 ETH
Yearly Burn985,500 ETH
Key Insight: Base fee stays stable at 50% block utilization. Above 50%, fees increase; below 50%, fees decrease. Maximum change is 12.5% per block.