$40K in Boston = $24,691 in Phoenix
Your $40K salary in Boston (COL 162) has the same purchasing power as $24,691 in Phoenix (COL 100). Phoenix is cheaper — your money goes 38% further there.
Budget breakdown — $40K in both cities
What $40K actually buys you in each city after taxes and core expenses.
| Expense | Boston $40K | Phoenix $40K (same salary) |
|---|---|---|
| Monthly take-home | $2,562 | $2,645 |
| 1BR rent | $3,000 | $1,500 |
| Groceries | $418 | $369 |
| Transport | $90 | $64 |
| Utilities | $185 | $210 |
| Internet | $70 | $60 |
| Left after essentials | -$1,201/month | $442/month |
Frequently asked questions
What is $40K in Boston equivalent to in Phoenix?
$40K in Boston (COL index 162) has the same purchasing power as $24,691 in Phoenix (COL index 100). That's 38% less than your current salary.
If I move from Boston to Phoenix keeping my $40K salary, will I be better off?
Yes. If you keep earning $40K after moving to Phoenix, you'd have $1,643 more per month after core expenses — because Phoenix is cheaper than Boston.
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 × (100 ÷ 162) = $24,691. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — Boston to Phoenix
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only