1 ETH equals 10^18 wei. Divide the wei amount by 1,000,000,000,000,000,000 to get Ether.

1 ETH equals 1,000,000,000 gwei. Divide gwei by one billion to get ETH. Gwei is the unit used for gas prices.

Multiply the ETH amount by 10^18 to get wei. For example, 1 ETH is 1,000,000,000,000,000,000 wei.

Convert gwei to ETH first, then multiply by the live Ether price. The converter does both steps and shows the dollar value.

How many wei in 1 ETH?

There are 1,000,000,000,000,000,000 wei (10^18) in 1 ETH. Wei is the smallest unit of Ether.

1 finney equals 0.001 ETH, so 1,000 finney make 1 Ether. Divide the finney amount by 1,000.

Ethereum gas fee in ETH?

Gas fee = gas used x gas price in gwei. Divide the total gwei by one billion to get the fee in ETH.

Ethereum Unit Converter

Ethereum values are stored in wei, gas prices are quoted in gwei and balances are shown in ether. Enter a value in any unit and see every other unit calculated exactly.

Amount

Unit

Wei

1,000,000,000,000,000,000

Gwei

1,000,000,000

Ether

1

$2,351.13 at the live ETH price

All Ethereum units

Ethereum denominations
Unit	Value
Wei	1,000,000,000,000,000,000
Kwei (Babbage)	1,000,000,000,000,000
Mwei (Lovelace)	1,000,000,000,000
Gwei (Shannon)	1,000,000,000
Szabo (Twei, microether)	1,000,000
Finney (Pwei, milliether)	1,000
Ether	1
Kether (Grand)	0.001
Mether	0.000001
Gether	0.000000001
Tether	0.000000000001

How to Use the Ethereum Unit Converter

Enter an amount.
Choose the unit you are converting from.
Read the exact value in all Ethereum units, from wei to tether.
Check the live USD value of the amount at the bottom.

About the Ethereum Unit Converter

Ether is divisible into 18 decimal places. The smallest unit, wei, is 0.000000000000000001 ETH. Gwei (one billion wei) is the standard unit for gas prices, and one ether is a billion gwei.

Conversions here use integer arithmetic rather than floating point numbers, so large wei values are exact and never suffer from rounding errors.

Ethereum Units and Denominations

Ether (ETH) can be divided into very small units. The smallest is the wei, and one ETH equals 1,000,000,000,000,000,000 wei (10 to the power of 18). Smart contracts work in wei internally, while wallets and gas trackers use friendlier units like gwei.

Wei: the smallest unit, 1 ETH = 10^18 wei.
Kwei, Mwei: 1,000 and 1,000,000 wei.
Gwei: 1,000,000,000 wei, used to quote gas prices. 1 ETH = 1,000,000,000 gwei.
Szabo and finney: older names for 10^12 and 10^15 wei.
Ether: the main unit, 10^18 wei.

What Is Gwei and Why Does It Matter?

Gwei is the unit used to price gas, the fee you pay for a transaction on Ethereum. A gas price of 20 gwei means you pay 20 billionths of an ETH for each unit of gas. Multiply the gas price by the gas used to find the fee, then convert it to ETH or dollars.

For example, a simple transfer uses 21,000 gas. At 20 gwei the fee is 21,000 x 20 = 420,000 gwei, which is 0.00042 ETH.

Quick Conversion Rules

Wei to ETH: divide by 10^18. Gwei to ETH: divide by 10^9. ETH to gwei: multiply by 10^9. ETH to wei: multiply by 10^18. The converter above does all of these in one step and avoids the long strings of zeros.