$40K in Charleston = $42,062 in Durham
Your $40K salary in Charleston (COL 97) has the same purchasing power as $42,062 in Durham (COL 102). Durham is more expensive — you'd need 5% more to maintain the same lifestyle.
Budget breakdown — $40K in both cities
What $40K actually buys you in each city after taxes and core expenses.
| Expense | Charleston $40K | Durham $40K (same salary) |
|---|---|---|
| Monthly take-home | $2,522 | $2,578 |
| 1BR rent | $1,900 | $1,750 |
| Groceries | $376 | $372 |
| Transport | $55 | $82 |
| Utilities | $162 | $155 |
| Internet | $63 | $62 |
| Left after essentials | -$34/month | $157/month |
Frequently asked questions
What is $40K in Charleston equivalent to in Durham?
$40K in Charleston (COL index 97) has the same purchasing power as $42,062 in Durham (COL index 102). That's 5% more than your current salary.
If I move from Charleston to Durham keeping my $40K salary, will I be better off?
Not necessarily. Core expenses in Durham are higher, so on the same $40K salary you'd have $191 less per month. You'd need to earn $42,062 to maintain the same standard of living.
How is the salary equivalent calculated?
The equivalent salary is calculated by multiplying your current salary by the ratio of the two cities' overall cost of living indices: $40K × (102 ÷ 97) = $42,062. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — Charleston to Durham
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only