AIOptimism mainnet transfers cost ~$0.000035 while Ethereum costs ~$0.0143, making Optimism the cheapest and Ethereum the most expensive among these chains by USD.
Gas Tracker
Gas per chain with a short-term forecast and the cheapest hour to transact — measured directly on-chain from public RPC nodes.
Updated every 5 minutes — bookmark this page for live gas across 6 chains.
1Cheap now
1Normal
1Expensive
Ethereum
Normal
$0.005005
Send
Swap$0.0358
gwei0.124
Now vs 24h0.0374–0.3605
Cheapest hour (UTC): 23:00 (~0.0689)
Base
live
$0.000242
Send
Swap$0.00173
gwei0.006
Now vs 24h0.006–0.006
Cheapest hour (UTC): 02:00 (~0.006)
Arbitrum
Cheap
$0.000807
Send
Swap$0.005766
gwei0.02
Now vs 24h0.02–0.0207
Good window now · 02:00
Optimism (OP Mainnet)
live
$0.00004
Send
Swap$0.000288
gwei0.001
Now vs 24h0.001–0.001
Cheapest hour (UTC): 00:00 (~0.001)
Polygon
Expensive
$0.000449
Send
Swap$0.00321
gwei266.3
Now vs 24h40.32–292.8
Cheapest hour (UTC): 04:00 (~259.1)
BNB Chain (BSC)
live
$0.001203
Send
Swap$0.008595
gwei0.1
Now vs 24h0.1–0.1
Cheapest hour (UTC): 00:00 (~0.1)
Level, trend and cheapest hour are computed from on-chain gas history measured directly from public RPC nodes. Gwei is each chain's native unit, not comparable across chains.