Cheapest way to get BTC from Coinbase to Arbitrum
Getting BTC from Coinbase onto Arbitrum has one big hidden variable: which withdrawal network you pick. The same coin can cost several times more to move on one network than another — on some exchange and token pairs, 50x or more.
Right now our fee table lists 2e-7 BTC to withdraw from Coinbase on Base vs 0.00003 BTC on Ethereum (typical values — this exchange passes live network fees through) — same coin, very different cost.
The calculator below prices every sensible path live — direct withdrawal when Coinbase supports Arbitrum, and withdraw-then-bridge routes when a cheaper leg exists.
Coinbase withdrawal fees for BTC
| Network | Fee | Verified |
|---|---|---|
| Base | 2e-7 BTCtypical | 2026-07-05 |
| Arbitrum | 5e-7 BTCtypical | 2026-07-05 |
| Ethereum | 0.00003 BTCtypical | 2026-07-05 |
Frequently asked
What's the cheapest network to withdraw BTC from Coinbase?
As of our last check (2026-07-05), Base at 2e-7 BTC — a typical value; this exchange passes the live network fee through. If your destination is elsewhere, a withdraw-then-bridge route may still beat the direct withdrawal — run the live comparison above.
Is it safe to withdraw on a cheap network and bridge after?
Generally yes — the major intent-based bridges (Across, Relay, deBridge) and routes vetted by LI.FI settle in seconds to minutes and avoid long-lived wrapped-asset custody, though all bridging carries some smart-contract risk. You do need a small amount of the intermediate chain's gas token; the calculator flags this on each route.
Does Coshpay touch my funds?
No. Comparisons are read-only — live quotes and step-by-step instructions, with no signup and no wallet. If you use the optional one-signature execution on supported cash-out routes, you connect your own wallet and sign the transaction yourself; funds settle through the routing provider's audited contracts and Coshpay still never holds them.