Gas Price Estimator
Estimate Ethereum transaction costs in ETH and USD
Gas Cost Estimation
Gas Limit
21,000
Total Gwei
0
Total ETH
0
Total USD
$0
Formula:
Gas Cost (Gwei) = Gas Limit × Gas Price
Gas Cost (ETH) = Gas Cost (Gwei) ÷ 10⁹
Gas Cost (USD) = Gas Cost (ETH) × ETH Price
Typical Gas Limits
ETH Transfer: 21,000 gas
ERC20 Transfer: ~65,000 gas
DEX Swap: ~150,000 gas
NFT Transfer: ~100,000 gas
Contract Interaction: ~200,000+ gas
1. What is Gas?
Gas is the unit of measurement for the computational work required to execute operations on Ethereum. Gas prices are denominated in Gwei (1 Gwei = 10⁻⁹ ETH). The total transaction cost equals gas used multiplied by gas price.
2. How does it work?
Gas Limit vs Gas Used
Gas limit is the maximum amount of gas you're willing to spend on a transaction. Gas used is the actual amount consumed. If the limit is too low, the transaction fails. Unused gas is refunded.
Gas Price Tiers
- Low (10-20 Gwei): Slower confirmation, lower cost
- Medium (20-50 Gwei): Normal confirmation time
- High (50-100 Gwei): Fast confirmation, higher cost
- Very High (100+ Gwei): Priority during network congestion
3. Examples
Simple ETH transfer at 20 Gwei
21,000 gas × 20 Gwei = 420,000 Gwei = 0.00042 ETHERC20 transfer at 50 Gwei (ETH = $2500)
65,000 gas × 50 Gwei = 3,250,000 Gwei = 0.00325 ETH = $8.13DEX swap at 100 Gwei (ETH = $2500)
150,000 gas × 100 Gwei = 15,000,000 Gwei = 0.015 ETH = $37.50