# How the priority parameter works

The `priority` parameter is available for Bitcoin, Ethereum, ERC-20 tokens and Litecoin. You can use it in both the [create](/api/tickercreate#priority) and [estimate](/api/tickerestimate#priority) endpoints.

As the name suggests, it makes transactions faster, but the higher the priority, the higher the network fee.

Each cryptocurrency or network has its own set of priorities.

## Bitcoin

For Bitcoin, the priority is a confirmation target: we work out the fee from current network fees so the transaction confirms within a given number of blocks.

| Priority | Blocks |
|---|---|
| fast | 10 |
| default | 25 |
| economic | 75 |
| x-economic | 125 |
| xx-economic | 200 |
| xxx-economic | 300 |
| xxxx-economic | 500 |
| xxxxx-economic | 1000 |

## Ethereum

For Ethereum, the values are based on the estimated gas price:

| Priority | Gas price |
|---|---|
| fast | 100% |
| default | 100% |
| economic | 95% |
| x-economic | 90% |
| xx-economic | 85% |
| xxx-economic | 80% |
| xxxx-economic | 75% |

## ERC-20 Tokens

As with Ethereum, the values for ERC-20 tokens are based on the estimated gas price:

| Priority | Gas price |
|---|---|
| fast | 120% |
| default | 100% |
| economic | 95% |
| x-economic | 90% |
| xx-economic | 85% |
| xxx-economic | 80% |
| xxxx-economic | 75% |

## Litecoin

As with Bitcoin, the priority is a confirmation target in blocks:

| Priority | Blocks |
|---|---|
| fast | 10 |
| default | 25 |
| economic | 50 |