$100K in Chattanooga = $97,674 in Birmingham
Your $100K salary in Chattanooga (COL 86) has the same purchasing power as $97,674 in Birmingham (COL 84). Birmingham is cheaper — your money goes 2% further there.
Budget breakdown — $100K in both cities
What $100K actually buys you in each city after taxes and core expenses.
| Expense | Chattanooga $100K | Birmingham $100K (same salary) |
|---|---|---|
| Monthly take-home | $6,321 | $5,904 |
| 1BR rent | $1,250 | $1,200 |
| Groceries | $357 | $357 |
| Transport | $45 | $40 |
| Utilities | $165 | $175 |
| Internet | $58 | $58 |
| Left after essentials | $4,446/month | $4,074/month |
Frequently asked questions
What is $100K in Chattanooga equivalent to in Birmingham?
$100K in Chattanooga (COL index 86) has the same purchasing power as $97,674 in Birmingham (COL index 84). That's 2% less than your current salary.
If I move from Chattanooga to Birmingham keeping my $100K salary, will I be better off?
Yes. If you keep earning $100K after moving to Birmingham, you'd have $-372 more per month after core expenses — because Birmingham is cheaper than Chattanooga.
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: $100K × (84 ÷ 86) = $97,674. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — Chattanooga to Birmingham
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only