$50K in Boise = $40,000 in Birmingham
Your $50K salary in Boise (COL 105) has the same purchasing power as $40,000 in Birmingham (COL 84). Birmingham is cheaper — your money goes 20% further there.
Budget breakdown — $50K in both cities
What $50K actually buys you in each city after taxes and core expenses.
| Expense | Boise $50K | Birmingham $50K (same salary) |
|---|---|---|
| Monthly take-home | $2,919 | $2,952 |
| 1BR rent | $1,600 | $1,200 |
| Groceries | $372 | $357 |
| Transport | $45 | $40 |
| Utilities | $145 | $175 |
| Internet | $60 | $58 |
| Left after essentials | $697/month | $1,122/month |
Frequently asked questions
What is $50K in Boise equivalent to in Birmingham?
$50K in Boise (COL index 105) has the same purchasing power as $40,000 in Birmingham (COL index 84). That's 20% less than your current salary.
If I move from Boise to Birmingham keeping my $50K salary, will I be better off?
Yes. If you keep earning $50K after moving to Birmingham, you'd have $425 more per month after core expenses — because Birmingham is cheaper than Boise.
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: $50K × (84 ÷ 105) = $40,000. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — Boise to Birmingham
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only