The cost of living alone in some of the world's most expensive cities can exceed $4,000 USD per month, but the bill size reflects only part of the overall picture.
According to a study by Atmos, London was named the most financially challenging city among those studied for a young adult living independently. To cover expenses and maintain a 10% reserve, a salary of $4,674 per month is required. Following it are Washington D.C. with a required amount of $4,514, Reykjavik at $4,363, Dublin at $4,042, and Amsterdam at $4,016.
For comparison, the budget compiled by IOL for Johannesburg amounts to 35,025 Rand per month before reserves, or 38,528 Rand including them, which is equivalent to approximately $2,386 at an exchange rate of 16.15 per dollar.
However, simply converting expenses into a common currency can be misleading. London residents receive and spend pounds, Amsterdam residents use euros, and South Africans use the rand.
Location also determines where money is spent. A resident of London can get around without a car; in Amsterdam, a bicycle is a full mode of transport, whereas in Johannesburg, a car may be a practical necessity. Healthcare, housing, and other expenses vary significantly between countries.
How far does the average local salary stretch?
The average cost of a one-bedroom apartment in central London is about £2,261, and outside the center, it is £1,702. London tops the Atmos ranking for total monthly expenses at $4,249 before reserves, largely due to housing costs. At the September 1st exchange rate, the required salary of $4,674 corresponds to approximately £3,452 per month.
Numbeo indicates the average net salary in London is around £3,525, leaving little room between the average income and the cost of independent living.
Rent is a significant expense: a one-bedroom apartment in central London averages £2,261, and outside the center, it is £1,702. Nevertheless, London residents do not necessarily need to add car payments and running costs, as a monthly public transport pass, including buses, the subway, and rail services, costs about £200. Basic utilities average £290 per month, internet is £31, and a mobile phone plan is £14. Thus, in a city where housing is extremely expensive, the public transport infrastructure allows for the exclusion of car ownership from the cost of independent living.
In downtown Washington, D.C., a one-bedroom apartment costs an average of $2,607, and outside the center, $2,120, while a monthly public transport pass costs approximately $120. Washington ranks second in the Atmos survey with a figure of $4,514 per month, but the picture changes significantly when considering income. According to Numbeo, the average monthly income is about $7,120, leaving approximately $2,600 between the average income and the required Atmos amount. Although housing remains expensive ($2,607 in the center and $2,120 outside), the monthly pass is about $120. Atmos estimates Washington's monthly expenses excluding rent at $1,601, with lifestyle costs being particularly high, including about $115 for a gym membership and $18 for a movie ticket. Washington demonstrates how headline figures can be deceiving: it is extremely expensive, but average incomes are also substantially higher.
Reykjavik requires $4,363 per month, which is equivalent to approximately 530,000 Icelandic krona at the September 1st exchange rate. The average monthly income is about 554,000 krona, leaving only a small gap between them. Reykjavik is the capital and largest city of Iceland, serving as the northernmost capital of a sovereign state and having about 140,000 inhabitants. Housing takes up a large portion of the budget: a one-bedroom apartment in the center averages 298,000 krona, and outside the center, 243,400 krona. Daily expenses are also not very mild: utilities cost about 10,695 krona, internet is 10,175 krona, and a monthly public transport pass is 11,200 krona. Atmos assigns Reykjavik a quality of life score of 195.1, illustrating another trade-off: expensiveness does not necessarily mean a low standard of living.
Dublin ranks fourth, requiring $4,042 per month, which is about €3,486 at the September 1st exchange rate. Numbeo sets the average monthly income at about €3,478, meaning that the Atmos assessment of the cost of independent living is practically equal to the entire average net salary. Rent is again a key issue, averaging €2,162 in the center and €1,881 outside. Dublin, the capital of Ireland, is located on the east coast in the Leinster province, with temperatures ranging from 6 to 20 degrees Celsius depending on the season. Its urbanization began when Vikings from Norway established a permanent settlement in 841 AD near a place known as 'Black Pool', which in Irish is called 'Dubh Linn' and gave the city its name.
Atmos estimates the basic monthly cost of living in Dublin at $1,234, the lowest among the five most expensive cities, but rent raises the total requirement above $4,000.
Amsterdam finishes fifth with a figure of $4,016, equivalent to approximately €3,464. The average income is significantly higher—about €4,136, leaving some margin for safety. Housing remains expensive: a one-bedroom apartment in the center averages €2,317, and further out, €1,724, but Amsterdam has something Johannesburg lacks: the ability to make cycling a serious part of daily transport. According to I amsterdam, about 32% of urban traffic is done by bicycle, 63% of residents cycle daily, and there are about 400 km of dedicated bike lanes in the city. This means that independent living does not automatically entail costs for financing, insurance, fuel, and maintenance of a car. Amsterdam also demonstrated the highest quality of life score among the five Atmos leaders—205.6.
Johannesburg: A Special Case
In Johannesburg, the comparison becomes particularly interesting. With the average net income in South Africa at 21,642 Rand, the Johannesburg budget requires an income approximately 78% higher than the average net earnings. IOL compiled an illustrative monthly budget for one working adult living alone. Rent of 7,000 Rand, plus 2,500 Rand for fees and 560 Rand for taxes, brings the housing cost to 10,060 Rand before electricity. Electricity adds 1,000 Rand, groceries add 2,000 Rand, internet is 500 Rand, and mobile phone expenses are 200 Rand. Unlike foreign cities, this budget includes 2,500 Rand for a car payment and 1,000 Rand for fuel, reflecting Johannesburg's completely different transport environment. Medical care totals 5,500 Rand for medical treatment and 3,000 Rand for non-covered expenses. Insurance adds 3,085 Rand, Netflix is 180 Rand, and 6,000 Rand cover regular expenses that are not received as a monthly direct debit: clothing, toiletries, household goods, car maintenance, and other daily expenditures. The gym is not included. This results in an illustrative cost of living alone in Johannesburg of 35,025 Rand, increasing to 38,528 Rand with a 10% reserve, equivalent to approximately $2,386 at an exchange rate of 16.15 per dollar, comparable to the Atmos rating.
Who is truly struggling?
In a direct dollar comparison, there is no doubt: London at $4,674 nearly doubles the illustrative amount of $2,386 for Johannesburg, while Washington, Reykjavik, Dublin, and Amsterdam exceed the $4,000 mark. However, cost and affordability are not the same thing. The average salary in Washington comfortably exceeds the Atmos requirement for living alone. Amsterdam also leaves some financial buffer. In London and Reykjavik, the cost approaches absorbing the average net income. In Dublin, it is virtually equal to it. In Johannesburg, the nominal cost is much lower, but so are the incomes.
The comparison also shows why the cost of living is more than just supermarket prices and rent. Where good public transport or safe cycling routes allow people to live without a car, thousands disappear from the monthly budget. Where healthcare is financed differently, another major expense category completely changes its shape. The real indicator of how expensive a city feels is not just the number on the bill, but how much money is left after paying it.