Wrap ETH Gas Fee Right Now
How much does it cost in gas to wrap ETH into WETH on Ethereum mainnet right now? The card below shows today's exact USD fee across three priority tiers — calculated live from real-time gas prices and the current ETH/USD rate.
Live wrap ETH to WETH cost
45,000 gas units · ETH ≈ $2,255
Standard
$0.0481
0.474 Gwei
Lowest tier that confirms in a few minutes.
Fast
$0.0536
0.529 Gwei
Default wallet tier — confirms in about a minute.
Rapid
$0.1167
1.15 Gwei
Top priority — confirms in under 30 seconds.
Base fee right now: 0.451 Gwei. Tier prices add the average priority tip seen in recent blocks. Wallets often pad estimates by 10–30%, so your actual quote may be a bit higher.
What is WETH, and when do you actually need it?
WETH (Wrapped Ether) is an ERC-20 token that's 1:1 backed by ETH. The WETH contract holds your ETH and mints an equal amount of WETH back to your wallet. You can unwrap any time to get your ETH back.
WETH exists because native ETH technically isn't ERC-20 — it predates the standard. Most DeFi protocols, DEX aggregators, and NFT marketplaces (for offers, not direct buys) expect ERC-20 tokens. Wrap once, use everywhere.
Common cases where you need WETH:
- • Making an OpenSea offer on an NFT (offer is settled in WETH)
- • Providing liquidity to a Uniswap WETH pool
- • Using older DeFi protocols that don't accept native ETH directly
- • Trading on certain DEXs that only quote ERC-20 pairs
Wrap, unwrap, gas math
- Wrap (ETH → WETH): ~45,000 gas. Call WETH.deposit() with your ETH.
- Unwrap (WETH → ETH): ~30,000 gas. Call WETH.withdraw() with the amount.
- Wrap inside a swap: Most modern DEXs handle this inline — the wrap gas is included in the swap's total (~190,000 gas vs ~150,000 for a pre-wrapped swap).
How to reduce wrap ETH gas
- Wrap in bulk. The wrap contract call is a fixed-gas operation. Wrapping 10 ETH costs the same as wrapping 0.1 ETH. Concentrate wraps.
- Pick Standard tier. Wrap is rarely urgent. Standard saves 20–40% versus the wallet's default Fast.
- Wrap during a low-gas window. Late UTC nights or weekends often halve the cost.
- Use an L2 if you need WETH there. Wrap on L2 costs cents — same 1:1 parity as mainnet WETH.
- Let DEXs handle the wrap inline. If you're going to swap right after wrapping anyway, modern DEXs do it for you — one tx instead of two.
Frequently asked questions
How much does it cost to wrap ETH right now?
The live USD figures above are exact, updated every minute. A wrap (ETH → WETH) uses approximately 45,000 gas — calling the WETH contract's deposit() function. Total cost = 45,000 × current Gwei × current ETH/USD.
What is WETH and why do I need it?
WETH is an ERC-20 wrapper around ETH. Many DeFi protocols, NFT marketplaces (OpenSea offers), and DEX integrations require ERC-20 tokens — and native ETH technically isn't one. WETH solves this: 1 WETH always equals 1 ETH and is freely convertible.
Is unwrapping (WETH → ETH) the same gas cost?
Slightly cheaper. Unwrapping uses ~30,000 gas — the contract call is simpler than the wrap, which has to handle the ETH deposit accounting. Both are cheap operations.
Do I always need to wrap ETH separately, or can DEXs do it inline?
Most modern DEXs accept native ETH directly and handle the wrap behind the scenes — Uniswap V3, V4, and many aggregators do this. You'll still see the wrap as part of the swap's total gas (~190,000 instead of ~150,000 for a wrap-free swap).
Why does an OpenSea offer require WETH?
OpenSea offers are signed off-chain. Until the offer gets accepted, no ETH moves. WETH lets the offer reference an ERC-20 allowance you've granted to the Seaport contract — when the seller accepts, the WETH transfers automatically without you having to be online.
Can I wrap ETH on a Layer 2?
Yes. WETH is deployed on every major L2 — Arbitrum, Optimism, Base, Polygon. Wrap cost on L2 is cents instead of dollars. The 1-for-1 ETH ↔ WETH parity is the same.
How can I reduce wrap ETH gas?
Wrap in bulk — one wrap of 5 ETH costs the same gas as one wrap of 0.5 ETH (it's a fixed contract call). Or wait for a low-gas window. Or use an L2 where the wrap is effectively free.
Related ETH gas tools and guides
Cheap wraps live on L2.
WETH on Arbitrum, Optimism, Base, and Polygon costs cents to wrap. Compare live L2 fees.