$40K in Idaho Falls = $23,908 in Phuket
Your $40K salary in Idaho Falls (COL 87) has the same purchasing power as $23,908 in Phuket (COL 52). Phuket is cheaper — your money goes 40% further there.
Budget breakdown — $40K in both cities
What $40K actually buys you in each city after taxes and core expenses.
| Expense | Idaho Falls $40K | Phuket $40K (same salary) |
|---|---|---|
| Monthly take-home | $2,535 | $2,728 |
| 1BR rent | $1,100 | $700 |
| Groceries | $365 | $380 |
| Transport | $35 | $150 |
| Utilities | $142 | $80 |
| Internet | $65 | $28 |
| Left after essentials | $828/month | $1,390/month |
Frequently asked questions
What is $40K in Idaho Falls equivalent to in Phuket?
$40K in Idaho Falls (COL index 87) has the same purchasing power as $23,908 in Phuket (COL index 52). That's 40% less than your current salary.
If I move from Idaho Falls to Phuket keeping my $40K salary, will I be better off?
Yes. If you keep earning $40K after moving to Phuket, you'd have $562 more per month after core expenses — because Phuket is cheaper than Idaho Falls.
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 × (52 ÷ 87) = $23,908. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — Idaho Falls to Phuket
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only