# Deposit CRO for zkCRO

zkCRO is used across the Cronos zkEVM ecosystem. Apart from using it to pay gas fees, you can also earn yield just by holding it.

## Before depositing CRO via the bridge

First, you need to hold CRO on Ethereum. You can purchase CRO via one of the following ways:

1. Swap on[ Uniswap](https://app.uniswap.org/swap)
2. Buy on a centralized exchange and withdraw to Ethereum

## Bridging CRO from Ethereum to Cronos zkEVM

**Step 1.** Head to[ https://zkevm.cronos.org](https://zkevm.cronos.org/) and connect your wallet.

<figure><img src="https://1526723574-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqIzWy3A4lZ5sKJXOvWiF%2Fuploads%2FwmT3VQSYYwqcGzEPszqM%2F1.avif?alt=media&#x26;token=bb3f9568-9806-4f18-8cc2-1afb4f8e08dd" alt="" width="563"><figcaption></figcaption></figure>

**Step 2.** On the “Deposit” tab, select CRO in the “FROM” field. zkCRO will be automatically selected in the “TO” field.

<figure><img src="https://1526723574-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqIzWy3A4lZ5sKJXOvWiF%2Fuploads%2Fzjq3mhmIU2l1SYWe0rM1%2F2.avif?alt=media&#x26;token=23bd3445-e564-4010-915e-3069065fe932" alt="" width="563"><figcaption></figcaption></figure>

**Step 3.** Enter the amount of CRO you want to bridge. Keep in mind that some additional CRO is needed to pay the gas fees.

<figure><img src="https://1526723574-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqIzWy3A4lZ5sKJXOvWiF%2Fuploads%2F7ymCOtHSpGN3hnWAxVGI%2F3.avif?alt=media&#x26;token=6bf99d99-1f9e-4af6-a5cf-c80991969801" alt="" width="563"><figcaption></figcaption></figure>

**Step 4.** Click “Deposit”

**Step 5.** Confirm (1) approval transaction for the bridge to spend your CRO and (2) CRO deposit transaction

**Step 6.** Your zkCRO should arrive in less than 10 minutes. You can check your zkCRO wallet balance in the top right-hand corner.

<figure><img src="https://1526723574-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqIzWy3A4lZ5sKJXOvWiF%2Fuploads%2FJENwJr1H6s3ciXyBz8Nd%2F4.avif?alt=media&#x26;token=561cc919-ec8e-4ad3-8558-e0cb291202f3" alt="" width="563"><figcaption></figcaption></figure>