Ethereum Gas Tracker — UK
Live Gwei gas prices with GBP transaction cost estimates. Slow, average and fast tiers, base fee, and estimated confirmation times — updated every 15 seconds.
- Gwei prices for slow / average / fast confirmations
- GBP cost per ETH transfer
- Base fee & priority tip breakdown
- Auto-refresh every 15 seconds
- EIP-1559 aware
- Free forever, no sign-up
How to use Ethereum gas intelligently
Frequently asked questions
Why are gas prices in Gwei?▾
Gwei is a subdivision of ETH (1 Gwei = 10⁻⁹ ETH). It's used because typical gas prices are tiny fractions of an ETH, and expressing them as small whole numbers is easier than scientific notation.
What's the base fee vs the priority fee?▾
Since EIP-1559, Ethereum has a base fee that's burned (removed from supply) and a priority fee that goes to validators. Your total gas price is base + priority. Wallets usually handle this automatically, but understanding it helps you negotiate transaction urgency.
When is gas cheapest?▾
Typically early weekend mornings UK time — lowest US and Asian activity overlap. Avoid NFT mint days, major news, and the hours after big CEX token launches.
How much gas do complex transactions cost?▾
A simple ETH transfer is 21,000 gas. An ERC-20 transfer is ~60,000. A Uniswap swap is 150,000–300,000. A complex DeFi interaction can be 500,000+. Multiply the gas amount by the Gwei price, then by the current ETH/GBP rate for your cost.
Does this data work for Layer 2s?▾
This tracker is for Ethereum mainnet only. L2s like Arbitrum, Optimism and Base have their own (much cheaper) gas markets. We plan to add L2 gas tracking soon.