Vaccine Queue Calculator — Australia COVID-19 Rollout
Find out where you fall in Australia's 2021 COVID-19 vaccine priority rollout. Enter your age, healthcare role, and health conditions to see how many Australians are ahead of you and how many weeks your group is likely to wait given the current vaccination rate.
years
Healthcare or border worker role
Serious chronic health condition or disability
people/week
Phase 2b — General adult population 18–49
- 1
Phase 1a group size
1,400,000 - 2
Phase 1b group size
6,100,000 - 3
Phase 2a group size
6,400,000 - 4
People ahead of you
1,400,000 + 6,100,000 + 6,400,000 = 13,900,000Sum of all higher-priority phase group sizes.
How does this calculator work?
Australia's 2021 COVID-19 vaccine rollout prioritised four phases: Phase 1a (~1.4M frontline workers and aged-care), Phase 1b (~6.1M adults 70+ and high-risk groups), Phase 2a (~6.4M adults 50–69), and Phase 2b (~6.3M remaining adults. Your estimated wait = people ahead ÷ weekly vaccination rate. Figures are 2021 estimates; edit the rate field for current data.
Formula
How this is calculated
Australia's 2021 COVID-19 vaccine rollout used a four-phase priority system designed by the Australian Technical Advisory Group on Immunisation (ATAGI). Phase 1a (approximately 1.4 million people) covered the highest-risk groups: frontline healthcare workers, quarantine and border workers, and aged-care facility residents and staff — groups with the greatest exposure risk or vulnerability. Phase 1b (~6.1 million) expanded to adults aged 70 and over, other healthcare workers, Aboriginal and Torres Strait Islander adults aged 55 and over, and adults aged 16–69 with specified chronic health conditions. Phase 2a (~6.4 million) opened to adults 50–69 and critical essential workers. Phase 2b covered the remaining general adult population 18–49.
This calculator assigns you to the appropriate phase based on your age, worker role, and health conditions, then counts all the people in higher-priority phases as "ahead of you". Dividing that number by the weekly vaccination rate gives an estimate of weeks until your group's turn. The 2021 rollout targets and population figures come from Australian Government Department of Health planning documents; these are editable defaults that you can update to reflect current rollout data.
This is a simplified model. Actual rollout timing depended on vaccine supply, state-by-state distribution, booking availability, and whether AstraZeneca or Pfizer/Moderna was available for your age group. Some phases ran concurrently or were resequenced during 2021 as the Delta variant emerged.
Frequently asked questions
Phase 1a prioritised the people most likely to contract COVID-19 due to direct occupational exposure — quarantine hotel workers and frontline healthcare staff in COVID wards — alongside the most vulnerable residents in aged-care facilities. Phase 1b broadened to older Australians and people with chronic conditions who are at high risk of severe illness but have lower occupational exposure.
During 2021, ATAGI updated its advice several times. From June 2021 Pfizer (and later Moderna) was preferred for adults under 60 due to a rare clotting risk from AstraZeneca. Adults 60 and over could still receive AstraZeneca. This did not change the priority phase order but did affect availability and speed for different age groups.
The default (350,000 people per week) reflects a mid-2021 conservative estimate. You can enter the most recent figure from the Australian Government's COVID-19 vaccine rollout dashboard to get a more current estimate. At the peak of the 2021 rollout, Australia was vaccinating over 600,000 people per week.
Also known as
TG we-Calculate Editorial Team. (2026). Vaccine Queue Calculator — Australia COVID-19 Rollout [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/vaccine-queue-australia-calculator
TG we-Calculate Editorial Team. "Vaccine Queue Calculator — Australia COVID-19 Rollout." TG we-Calculate. 2026. https://we-calculate.com/calculator/vaccine-queue-australia-calculator.
TG we-Calculate Editorial Team, "Vaccine Queue Calculator — Australia COVID-19 Rollout," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/vaccine-queue-australia-calculator
@misc{wecalculate_vaccine_queue_australia_calculator, title = {Vaccine Queue Calculator — Australia COVID-19 Rollout}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/vaccine-queue-australia-calculator}}, year = {2026}, note = {TG we-Calculate} }
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