Taxi fares in Melbourne are regulated by the Victorian Taxi Services Commission. The fare is calculated based on the distance traveled and time spent in the taxi. There may also be additional charges for tolls, late-night or early-morning trips, and special requests such as a baby seat. You can find more information on the current taxi fares on the commission's website.

To book a taxi in Melbourne, you can either call a taxi company or use a ride-hailing app such as Uber or Ola. You can also hail a taxi on the street, but it's recommended to book in advance, especially during peak hours.