converter
Convert between units
Type a value in any field — the others recalculate. Precision is preserved using bigint math.
smallest unit · 10⁰
wei
gas pricing · 10⁹ wei
gwei
native asset · 10¹⁸ wei
ether
→ unit converter
ETH Unit Converter
Instantly convert between Wei, Gwei, and Ether. Useful for gas estimation, smart-contract math, and dApp development. Bigint-based so precision is preserved at any scale.
reference
Ethereum unit ladder
All standard Ethereum denominations, expressed against wei, gwei, and ether.
| Unit | In wei | In gwei | In ether |
|---|---|---|---|
| Wei | 1 | 10⁻⁹ | 10⁻¹⁸ |
| Kwei | 10³ | 10⁻⁶ | 10⁻¹⁵ |
| Mwei | 10⁶ | 10⁻³ | 10⁻¹² |
| Gwei | 10⁹ | 1 | 10⁻⁹ |
| Twei | 10¹² | 10³ | 10⁻⁶ |
| Pwei | 10¹⁵ | 10⁶ | 10⁻³ |
| Ether | 10¹⁸ | 10⁹ | 1 |
What is Wei?
Wei is the smallest unit of Ether. One Ether equals 1,000,000,000,000,000,000 wei (1018 wei). Wei is named after Wei Dai, a cryptographer who contributed to early cryptocurrency concepts. He developed bmoney, which laid the groundwork for smart contracts.
Gas and Ether
Ether powers the Ethereum network by paying for computational resources. Gas costs depend on transaction complexity and current gas prices. Gas fees are typically paid in Gwei, and the total fee is calculated as: Gas Used × Gas Price.
What is Gwei?
Gwei, or giga-wei, is a common ether denomination. One gwei equals 1,000,000,000 wei (109 wei) and is often used to calculate gas fees. Typically, transaction fees on Ethereum are 21,000 gwei. With the London Hard Fork in July 2021, EIP-1559 introduced a base-fee system for transactions, with optional tips to prioritize transactions.
Converting Wei to Gwei
To convert wei to gwei, divide the amount of wei by 1 billion (109). For example, 420,069,000,000 wei equals 420.069 gwei.
// formula
Wei ÷ 109 = Gwei
// example
420,069,000,000 wei ÷ 1,000,000,000 = 420.069 gweiConverting Wei to ETH
To convert wei to ether, divide the amount of wei by 1 quintillion (1018). For example, 100 trillion wei equals 0.0001 ETH. Multiply by the current price of ETH for the USD value.
// formula
Wei ÷ 1018 = ETH
// example
100,000,000,000,000 wei ÷ 1,000,000,000,000,000,000 = 0.0001 ETHAbout this Ethereum unit calculator
A free Ethereum unit converter for developers and crypto users. For more blockchain tools and resources, check out my Web3 Data tools or read my articles on Medium.
Structured overview for LLMs and search: llms.txt