
Australia, the world's largest island and smallest continent, boasts an extensive coastline that stretches approximately 25,760 kilometers (16,000 miles). This vast perimeter encompasses a diverse range of landscapes, from pristine beaches and rugged cliffs to tropical reefs and remote wilderness. The question of how many kilometers it takes to go around Australia is not just a matter of geographical curiosity but also a reflection of the country's immense size and natural beauty. Whether by land, sea, or air, circumnavigating Australia offers a unique perspective on its rich biodiversity, cultural heritage, and the sheer scale of this extraordinary landmass.
| Characteristics | Values |
|---|---|
| Total coastline length (including islands) | 35,877 km (22,293 mi) |
| Mainland coastline length | 19,375 km (12,039 mi) |
| Continental coastline length | 25,760 km (16,007 mi) |
| Road distance around Australia (National Highway) | 14,500 km (9,000 mi) |
| Road distance around Australia (including detours) | ~15,000 km (9,320 mi) |
| Great Australian Bight coastline | ~1,160 km (720 mi) |
| Northern Territory coastline | 10,580 km (6,574 mi) |
| Western Australia coastline | 12,889 km (8,009 mi) |
| Queensland coastline | 6,972 km (4,332 mi) |
| New South Wales coastline | 2,137 km (1,328 mi) |
| Victoria coastline | 2,512 km (1,561 mi) |
| Tasmania coastline | 3,243 km (2,015 mi) |
| South Australia coastline | 3,144 km (1,954 mi) |
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What You'll Learn

Coastal Route Distance
The coastal route distance to circumnavigate Australia is a topic of significant interest for travelers, adventurers, and planners alike. Australia's coastline is renowned for its diversity, stretching along vast oceans, pristine beaches, and rugged cliffs. To traverse the entire coastline, one must account for the intricate details of its geography, including numerous inlets, peninsulas, and islands. The total distance to travel around Australia's coastline is approximately 37,000 kilometers (23,000 miles). This figure is not merely a straight-line measurement but a comprehensive calculation that follows the natural contours of the coast.
When planning a coastal route around Australia, it’s essential to consider the variability in terrain and accessibility. The eastern coast, for instance, features a mix of urban areas like Sydney and Brisbane, as well as dense forests and national parks. The southern coast is known for its dramatic cliffs and the iconic Great Ocean Road, while the western coast boasts remote, untouched landscapes. The northern coast, including the Kimberley region and the Gulf of Carpentaria, is characterized by its tropical climate and vast wetlands. Each of these regions contributes to the overall distance, making the journey both challenging and rewarding.
The coastal route distance also includes the navigation around Tasmania, Australia's largest island, which adds approximately 2,000 kilometers (1,243 miles) to the total. Tasmania’s coastline is particularly intricate, with numerous bays, coves, and peninsulas that require careful navigation. Additionally, smaller islands along the mainland coast, such as Fraser Island and Kangaroo Island, further extend the distance, though they are often bypassed in standard circumnavigation routes.
For those undertaking this journey, whether by vehicle, bicycle, or on foot, understanding the coastal route distance is crucial for logistical planning. Fuel stops, accommodation, and supply points are often spaced far apart, especially in remote areas like the Nullarbor Plain or the Kimberley. Travelers must also account for seasonal weather conditions, which can affect road accessibility and safety. For example, the northern coast is prone to monsoonal rains during the wet season, while the southern coast can experience strong winds and storms in winter.
In summary, the coastal route distance to go around Australia is approximately 37,000 kilometers, encompassing the mainland and Tasmania. This distance reflects the complexity and beauty of Australia's coastline, from its bustling cities to its remote wilderness. Proper planning, taking into account terrain, accessibility, and weather, is essential for anyone embarking on this epic journey. Whether for adventure, exploration, or personal challenge, circumnavigating Australia’s coastline offers an unparalleled experience of one of the world’s most unique and diverse landscapes.
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Inland vs. Coastal Comparison
When considering the journey around Australia, one of the first distinctions to make is between the inland and coastal routes. The coastal route, which largely follows the perimeter of the continent, offers a more straightforward measurement. Australia’s coastline spans approximately 37,000 kilometers when accounting for the mainland and major islands. This route is popular for its scenic beauty, passing through iconic locations like the Great Barrier Reef, the Twelve Apostles, and the white-sand beaches of Western Australia. However, the coastal route can be more challenging due to varying road conditions, remote stretches, and the need for careful planning to access fuel and supplies.
In contrast, the inland route is significantly longer and more complex. While the coastline provides a natural boundary, the inland journey involves traversing the vast Australian outback, which lacks a single defined path. If one were to approximate a circular route through the interior, the distance could easily exceed 40,000 kilometers, depending on the specific path chosen. The inland route is less about following a perimeter and more about connecting major inland towns and landmarks, such as Uluru, Alice Springs, and the Flinders Ranges. This route appeals to adventurers seeking a deeper connection with Australia’s rugged landscapes and unique ecosystems.
One of the key differences between the two routes is the driving experience. Coastal roads are generally well-maintained and offer more frequent access to amenities, making them more accessible for less experienced travelers. Inland routes, however, often involve unsealed roads, which require sturdy vehicles and a higher level of preparedness. The inland journey also demands greater self-sufficiency, as services can be sparse and distances between towns are vast. For example, the trek across the Nullarbor Plain, a common inland segment, is one of the longest straight stretches of road in the world, with limited facilities along the way.
Another factor to consider is the time and resources required. The coastal route, despite its shorter distance, can still take several months to complete due to its winding nature and the temptation to stop at numerous attractions. The inland route, while longer, may offer a more direct path in some sections but requires more time overall due to the challenging terrain and the need for cautious driving. Fuel costs and vehicle maintenance are also higher for the inland route, given the harsher conditions.
Finally, the choice between inland and coastal routes depends on personal preferences and travel goals. The coastal route is ideal for those who want to experience Australia’s famous beaches, marine life, and coastal culture. The inland route, on the other hand, is perfect for travelers seeking solitude, a connection with the outback, and the chance to explore lesser-known parts of the country. Both routes offer a unique perspective on Australia’s vastness, but they cater to different styles of adventure and require distinct levels of preparation.
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Major Cities Detour Impact
The coastline of Australia stretches approximately 25,760 kilometers, but this distance can significantly increase when factoring in detours to major cities. These detours are essential for travelers who wish to explore urban centers, but they add both kilometers and time to the journey. For instance, a coastal route around Australia that includes major cities like Sydney, Melbourne, Brisbane, Perth, and Adelaide will require inland diversions, each adding hundreds of kilometers to the total distance. Understanding the impact of these detours is crucial for planning a comprehensive and realistic itinerary.
Sydney, one of Australia's most iconic cities, lies approximately 70 kilometers inland from the coastal route. A detour to Sydney not only adds this distance but also requires navigating through urban traffic, which can slow travel time. Similarly, Melbourne, located further south, demands a detour of around 50 kilometers from the coastline. These cities, while culturally and historically significant, necessitate careful route planning to minimize disruptions to the overall journey. Travelers must account for these additional kilometers and the time required to explore these cities thoroughly.
Brisbane, situated in Queensland, adds another layer of complexity. A detour to Brisbane involves traveling roughly 30 kilometers inland, but the city's sprawling layout can extend this distance further. Perth, on the western coast, presents an even greater challenge, as it requires a detour of over 100 kilometers from the coastal route. This significant diversion is unavoidable for those wishing to experience Perth's unique charm and attractions. Adelaide, in South Australia, adds a more modest detour of around 20 kilometers, but its inclusion is vital for a well-rounded Australian journey.
The cumulative impact of these detours can increase the total distance of a coastal journey around Australia by 300 to 500 kilometers, depending on the specific route taken. This additional distance not only affects fuel consumption and travel costs but also extends the overall duration of the trip. Travelers must balance the desire to visit major cities with the practicalities of time and resources. For example, a detour to Perth alone can add a full day of driving, while Sydney and Melbourne combined may require an additional two days.
To mitigate the impact of these detours, travelers should prioritize which cities are most important to visit and plan their routes accordingly. Using detailed maps and GPS navigation can help optimize detours, minimizing unnecessary kilometers. Additionally, scheduling rest stops and overnight stays in or near these cities can reduce the strain of extended driving. By carefully considering the Major Cities Detour Impact, travelers can ensure a more enjoyable and efficient journey around Australia, balancing exploration with practicality.
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Road Conditions Effect
The total distance to drive around Australia is approximately 14,500 kilometers (9,000 miles) along Highway 1, which circumnavigates the continent. However, the road conditions you’ll encounter along this route can significantly impact your journey, affecting both travel time and vehicle wear. Australia’s vast and diverse landscape means road conditions vary widely, from well-maintained highways to unsealed, rugged tracks. Understanding these variations is crucial for planning a safe and efficient trip.
One of the most notable effects of road conditions is the impact of unsealed roads, particularly in remote areas. Large sections of the route around Australia, especially in the Northern Territory and Western Australia, consist of dirt or gravel roads. These surfaces can slow travel speeds dramatically, often to 60–80 km/h or less, depending on weather conditions. Dust, corrugations, and potholes are common, increasing the risk of vehicle damage, particularly to tires, suspension, and undercarriage components. Travelers must factor in additional time and maintenance when navigating these sections.
Weather also plays a critical role in road conditions and can exacerbate existing challenges. During the wet season in northern Australia (November to April), heavy rainfall can turn unsealed roads into muddy, impassable tracks, leading to delays or detours. Flooding is a significant risk, and many roads may close temporarily. Conversely, in arid regions, dry conditions can cause loose gravel and sand to reduce traction, increasing the risk of accidents. Travelers must monitor weather forecasts and road condition updates to avoid hazardous situations.
The quality of sealed roads in Australia is generally high, particularly along major highways. However, even these roads can deteriorate in remote areas due to heavy traffic, extreme temperatures, and lack of maintenance. Cracks, uneven surfaces, and wildlife crossings are common hazards. Additionally, long stretches of straight, monotonous roads, especially in the Outback, can lead to driver fatigue, a major concern on such a lengthy journey. Regular breaks and careful planning are essential to mitigate this risk.
Finally, road conditions can affect fuel consumption and vehicle reliability. Rough or unsealed roads increase fuel usage due to higher resistance, while frequent stops and starts in remote areas can strain the engine. Carrying extra fuel, water, and spare parts is advisable, as service stations can be few and far between. Proper vehicle preparation, including robust tires and a reliable GPS or map, is critical to navigating Australia’s diverse road conditions successfully. In summary, while the distance around Australia is fixed, the road conditions you encounter will dictate the true length and difficulty of your journey.
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Estimated Travel Time Calculation
To estimate the travel time required to go around Australia, we first need to determine the total distance involved. According to various sources, the coastal drive around Australia, following Highway 1, spans approximately 14,500 kilometers (9,000 miles). This route circumnavigates the continent, passing through major cities and diverse landscapes. However, the actual distance can vary depending on detours, side trips, or alternative routes taken. For the purpose of this calculation, we'll use the 14,500 km figure as the baseline.
Next, we need to consider the average travel speed to calculate the estimated time. If traveling by car, a realistic average speed is 80 kilometers per hour (50 miles per hour), accounting for stops, traffic, and varying road conditions. Using this speed, the estimated travel time can be calculated by dividing the total distance by the average speed: 14,500 km ÷ 80 km/h = 181.25 hours. This equates to roughly 7.5 days of non-stop driving, which is impractical. A more realistic approach would involve breaking the journey into manageable segments, typically 8–10 hours of driving per day.
Based on a daily driving limit of 8 hours, the total travel time would be 181.25 hours ÷ 8 hours/day = 22.66 days, or approximately 23 days. However, this calculation assumes continuous travel without rest days. For a more enjoyable and sustainable trip, most travelers allocate 3–4 months to complete the journey, allowing time to explore attractions, rest, and account for unexpected delays.
If traveling by motorcycle or bicycle, the average speed decreases significantly. A motorcycle might average 60–70 km/h, extending the travel time to 3–4 months with daily breaks. Cycling around Australia, with an average speed of 100–150 km per day, could take 6–12 months or more, depending on fitness, weather, and rest days.
Lastly, public transport or organized tours offer alternative options but with less control over travel time. A bus or guided tour might take 2–3 months to complete the circuit, including stops at key destinations. In summary, the estimated travel time to go around Australia ranges from 3 weeks of intensive driving to several months for a more leisurely or active journey, depending on the mode of transport and travel style.
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Frequently asked questions
The total road distance to circumnavigate Australia is approximately 14,500 kilometers (9,000 miles), following Highway 1, the longest national highway in the world.
Australia's coastline measures about 25,760 kilometers (16,000 miles), including all its islands and mainland.
Driving around Australia typically takes 3 to 4 months, depending on stops, detours, and travel pace.
Walking around Australia is possible but extremely challenging. The distance would be similar to the coastline length, around 25,760 kilometers, and would take several years to complete.
The shortest air distance to circumnavigate Australia is roughly 12,000 kilometers (7,456 miles), though actual flight routes may vary based on stops and airline paths.











































