$40K in Boulder = $24,242 in Topeka

Your $40K salary in Boulder (COL 132) has the same purchasing power as $24,242 in Topeka (COL 80). Topeka is cheaper — your money goes 39% further there.

$40K in Boulder, CO
$2,582/mo take-home
Rent: $2,300/mo (89% of take-home)
Difficult
$24,242/yr in Topeka, KS
$1,538/mo take-home
Rent: $940/mo (61% of take-home)
Difficult

Budget breakdown — $40K in both cities

What $40K actually buys you in each city after taxes and core expenses.

Expense
Boulder
$40K
Topeka
$40K (same salary)
Monthly take-home$2,582$2,538
1BR rent$2,300$940
Groceries$414$350
Transport$80$40
Utilities$138$150
Internet$68$55
Left after essentials-$418/month$1,003/month
To match your Boulder purchasing power in Topeka, you'd need to earn $24,242/year (39% less than $40K). At that salary, you'd have $3/mo left after essentials — vs $-418/mo in Boulder.

Frequently asked questions

What is $40K in Boulder equivalent to in Topeka?

$40K in Boulder (COL index 132) has the same purchasing power as $24,242 in Topeka (COL index 80). That's 39% less than your current salary.

If I move from Boulder to Topeka keeping my $40K salary, will I be better off?

Yes. If you keep earning $40K after moving to Topeka, you'd have $1,421 more per month after core expenses — because Topeka is cheaper than Boulder.

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 × (80 ÷ 132) = $24,242. This adjusts for differences in housing, food, transport, and general cost of living.

Other salary amounts — Boulder to Topeka

$50K → $30,303$60K → $36,364$75K → $45,455$80K → $48,485$100K → $60,606$120K → $72,727$150K → $90,909
$40K in Topeka → BoulderMoving from Boulder to TopekaBoulder vs Topeka — full comparisonCan I afford Boulder vs Topeka on $40K?

Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only