Network fee tools
Every calculator runs in your browser with the latest live reading filled in. Nothing you type is sent anywhere, except a transaction id you ask us to look up.
Gwei to USD calculator
Gas limit × gwei → ETH and dollars, on every EVM chain, with the current gas price filled in.
Bitcoin fee calculator (sat/vB)
Inputs, outputs and address type → virtual bytes → fee at today's rate. Consolidation mode.
Litecoin fee calculator
The same size calculator with Litecoin's fee rate.
Stuck Bitcoin transaction (RBF / CPFP)
Paste a txid: its fee rate against today's, and what a bump costs.
EIP-1559 max fee calculator
Base fee, tip and max fee → what is paid, burned and never charged.
Blob fee (EIP-4844)
The blob base fee now, and why layer-2 fees follow it.
Layer-2 fees compared
Arbitrum, Optimism, Base, zkSync, Linea: execution and L1 data fee side by side.
Gas used per transaction type
ETH send, token send, approval, swap, NFT, bridge — each with a real transaction.
Bridge gas
The network part of an official bridge deposit, without any bridge fee.
Best time to send
Hour × weekday from our own readings, in your time zone.
Network fee status
Each chain's fee now against its own 7-day median.
Small amounts
From which amount the network fee stays under 1 %.
Bitcoin mempool blocks
The next blocks waiting to be mined and their fee rates.
Fee unit converter
gwei, sats, lamports, sun, drops, sompi — to the coin and to dollars.
Monthly fee reports
Median, low, high and the cheapest weekday per month, from our readings.
Fee units explained
What gwei, sat/vB, energy, lamports and the L1 data fee mean.
Fee widget and JSON
Put one live fee on your page, or read all of them as JSON.