This calculator compares the true monthly cost of driving in Los Angeles against a Metro TAP pass (~$100/mo). Driving cost uses the IRS standard mileage rate, which captures fuel plus maintenance and depreciation, then adds parking — giving an honest side-by-side.
How it works
The driving side uses round-trip mileage at the IRS rate, plus parking:
Monthly miles = one-way miles x 2 x commute days/month Driving cost = Monthly miles x IRS rate + monthly parking
The transit side is simply your monthly pass price (TAP pass defaults to $100). The tool reports both totals and the monthly saving from the cheaper option.
Why the IRS mileage rate
People often think of commute cost as just gas. The IRS standard mileage rate (~$0.67/mile) bundles fuel, oil, maintenance, tires, insurance, and depreciation, so it reflects the real cost of putting miles on a car — not just the fuel you pump. That makes the driving figure comparable to the all-in transit pass.
Example
A 20-mile one-way commute, 22 days/month:
- Monthly miles: 20 x 2 x 22 = 880 miles
- Driving (mileage): 880 x $0.67 = $589.60
- Plus parking: + $250 = $839.60/month
- Transit (TAP pass): $100/month
- Driving costs ~$739.60 more per month
Notes
Parking varies enormously in LA — free at many suburban jobs, $250+/month downtown. If you have free parking, set it to $0. The IRS rate updates annually; adjust it if needed. All figures are estimates for planning.