Skip to Primary NavigationSkip to ContentSkip to Footer
  • Personal
  • Business
  • Enterprise
  • Deals

Post Paid Mobile Usage Guide

This guide is to help you determine which Post Paid Mobile Service may best suit your needs. Please note this is a guide only and you should read the full details and terms and conditions of any plan you are considering to purchase.

Voice Usage

The below calculations are based on 2 minute standard national calls to any mobile within Australia, on a postpaid mobile plan which has an amount of included voice minutes.

How many 2 minute calls do you make to any Australian mobile within Australia? How many Voice minutes do I need in a plan

Monthly voice minutes estimate
How often would you do this? Minutes Estimation
One call every couple of days At least 30 minutes per month
One call every day At least 60 minutes per month
2 to 5 calls every day Between 120 and 300 minutes per month
6 to 10 calls every day Between 360 and 600 minutes per month

Data Usage

The tables below provide a guide to how much data you may need, depending on what you do on your mobile service. You should also keep in mind how you've previously used data services.

Web Page Browsing and/or Accessing Email (Without Attachments)

Please note that web page browsing will vary depending on the web page you visit. More text and/or pictures on a page means more data is being used to view that page. Email size will change depending on the amount of content or attachments in the email.

Monthly mobile data usage estimate
How often would you do this? Data Estimation
Once every few days at most About 50MB
Every day, but only a few web pages or email About 50MB
I spend a lot of the time on the web each day About 100MB

Downloading Apps

Before downloading applications you should always check the size of the app to make sure you don't exceed your included data limit.

Monthly mobile data usage for app downloads
How often would you download apps? Data Estimation
Less than 5 per month About 100MB
5-15 per month About 300MB
More than 15 per month (though will depend on total number of apps) About 400MB

Video Clips

Before viewing video clips you should always check the size of the clip to make sure you don't exceed your included data limit. The longer the video clip, the larger it will be in size.

Monthly data usage estimate for video clips
How often would you view video clips? Data Estimation
Once every week at most About 100MB
Once every few days About 200MB
A couple of clips each day About 1GB
A lot of online video About 2GB

More from Optus

  • My Optus App
  • SubHub
  • Accessories
  • Student Hub

Customer Service

  • Contact Us
  • Help & Support
  • Store Locator
  • Payment Assistance Policy
  • Feedback & Complaints
  • Report a service outage

About Us

  • About Optus
  • Careers
  • Corporate Information
  • Media Releases
  • About Singtel
  • Accessibility

  • Blog
  • Connect With Us on facebook
  • Connect With Us on instagram
  • Connect With Us on tiktok
  • Connect With Us on linkedin
  • Connect With Us on twitter
  • Connect With Us on youtube

  • Critical Information Summaries
  • Standard Agreement
  • Privacy, Security & Safety

Connect with us

  • Blog
  • Connect With Us on facebook
  • Connect With Us on instagram
  • Connect With Us on tiktok
  • Connect With Us on linkedin
  • Connect With Us on twitter
  • Connect With Us on youtube
  • Critical Information Summaries
  • Standard Agreement
  • Privacy, Security & Safety
© 2026 Singtel Optus Pty Limited
Optus acknowledges the Traditional Custodians of the lands, waters and skies across Australia. We pay our respects to Elders past and present and honour the strength and continuity of the world's oldest living cultures.