$120K in Prague = $228,261 in Boise
Your $120K salary in Prague (COL 55) has the same purchasing power as $228,261 in Boise (COL 105). Boise is more expensive — you'd need 90% more to maintain the same lifestyle.
Budget breakdown — $120K in both cities
What $120K actually buys you in each city after taxes and core expenses.
| Expense | Prague $120K | Boise $120K (same salary) |
|---|---|---|
| Monthly take-home | $5,655 | $6,575 |
| 1BR rent | $800 | $1,600 |
| Groceries | $380 | $372 |
| Transport | $150 | $45 |
| Utilities | $90 | $145 |
| Internet | $25 | $60 |
| Left after essentials | $4,210/month | $4,353/month |
Frequently asked questions
What is $120K in Prague equivalent to in Boise?
$120K in Prague (COL index 55) has the same purchasing power as $228,261 in Boise (COL index 105). That's 90% more than your current salary.
If I move from Prague to Boise keeping my $120K salary, will I be better off?
Not necessarily. Core expenses in Boise are higher, so on the same $120K salary you'd have $143 less per month. You'd need to earn $228,261 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: $120K × (105 ÷ 55) = $228,261. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — Prague to Boise
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only