$40K in Boise = $31,619 in Kansas City
Your $40K salary in Boise (COL 105) has the same purchasing power as $31,619 in Kansas City (COL 83). Kansas City is cheaper — your money goes 21% further there.
Budget breakdown — $40K in both cities
What $40K actually buys you in each city after taxes and core expenses.
| Expense | Boise $40K | Kansas City $40K (same salary) |
|---|---|---|
| Monthly take-home | $2,535 | $2,538 |
| 1BR rent | $1,600 | $1,050 |
| Groceries | $372 | $357 |
| Transport | $45 | $55 |
| Utilities | $145 | $162 |
| Internet | $60 | $58 |
| Left after essentials | $313/month | $856/month |
Frequently asked questions
What is $40K in Boise equivalent to in Kansas City?
$40K in Boise (COL index 105) has the same purchasing power as $31,619 in Kansas City (COL index 83). That's 21% less than your current salary.
If I move from Boise to Kansas City keeping my $40K salary, will I be better off?
Yes. If you keep earning $40K after moving to Kansas City, you'd have $543 more per month after core expenses — because Kansas City 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: $40K × (83 ÷ 105) = $31,619. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — Boise to Kansas City
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only