Ethereum Gas Tracker — live gas fees

What “gas” really is

Every action on Ethereum — sending ETH, moving a token, swapping, minting — consumes a measured amount of computation called gas, and you pay for it. Since the EIP-1559 upgrade the price has two parts: a base fee that the network sets automatically and that rises and falls with how busy each block is, plus a small priority fee (a “tip”) that nudges validators to include your transaction sooner. The tracker above shows three blended price points — slow, average and fast — and converts each into the actual dollar cost of common actions, so the abstract “gwei” number becomes something you can reason about.

Why it spikes — and when it’s cheap

Block space is finite. When demand surges — a hyped NFT drop, a token launch, a volatile market sending everyone to trade at once — the base fee climbs until enough people drop out and it settles again. That is why the same transfer can cost a couple of dollars one hour and far more the next. As a rough pattern, weekends and the quiet overnight hours (US night, European morning) tend to be cheaper, while weekday afternoons around major market events are the worst. There is no fixed schedule, which is exactly why a live tracker beats a guess.

How to actually pay less

Three levers genuinely work. First, time it: for anything that isn’t urgent, use the slow tier and transact when the tracker is low. Second, use a layer-2 such as Arbitrum or Base for everyday activity — same assets, a fraction of the fee. Third, and most overlooked: if you move value regularly, don’t keep it sitting on Ethereum at all. Stablecoins and many assets exist on cheaper networks, and shifting them to TRC-20, Solana or an L2 sidesteps Ethereum gas entirely. A single swap to a cheaper rail can pay for itself within a few transactions.

Reading the numbers

The maths is simple once you see it: fee = gas used × gas price. A plain ETH transfer always uses 21,000 gas, so at 20 gwei it costs 420,000 gwei, which is 0.00042 ETH — multiply by the ETH price for the dollar figure shown above. Contract actions like swaps or mints use several times more gas, which is why they dominate the table even at the same gwei.

General information, not financial advice. Gas prices are live and change every block; the listed gas amounts are typical estimates and vary by contract. On-chain transactions are irreversible.