Whether to drive or ride UTA in Salt Lake City often comes down to numbers most people never run. This calculator pits the roughly $99 monthly UTA pass against the true cost of driving — not just gas, but parking and the per-mile wear the IRS rate captures.
How it works
Driving cost is built from three parts, then compared to transit:
monthly miles = one-way miles × 2 × commute days
gas cost = monthly miles / mpg × gas price
full drive cost= monthly miles × IRS rate + parking
transit cost = UTA monthly pass (~$99)
savings = full drive cost − transit cost
The IRS standard rate of about $0.67 per mile already includes fuel, maintenance, and depreciation, so it is the fairest all-in comparison. The tool also shows a gas-only figure for those who would keep the car regardless.
Example and tips
A 12-mile one-way commute, 20 days a month, is 480 monthly miles. At 28 MPG and $3.50 gas that is about $60 in fuel, but at the full IRS rate plus $100 parking the real cost is roughly $422 — far above the $99 UTA pass. If your employer or the U of U covers your transit pass, the comparison tilts even harder toward riding. Free workplace parking is the single biggest factor that swings the math back toward driving.