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Public Transport vs Car: Which Actually Costs Less?

Is your car costing more than you think?

What This Does

Most people dramatically underestimate how much their car costs. The monthly payment gets all the attention, but it's only one piece of a much larger picture. Insurance, fuel, maintenance, parking, and depreciation can easily push total car ownership costs to $800–$1,200 per month β€” even for a modest vehicle. On the other side, a transit-first lifestyle combining a monthly pass, rideshare apps for convenience trips, and occasional car rentals often runs $150–$350 per month in most cities. The gap is frequently $500–$900 per month β€” or $6,000–$10,000 per year. The decision isn't purely financial. Car ownership provides flexibility and convenience that many people value highly. But most people who say they "need" a car have never actually run the numbers. This calculator helps you do exactly that. Enter your real car costs β€” including the depreciation your car loses every year whether you drive it or not β€” and compare against your realistic transit scenario. The result often surprises people.

Assumptions
  • Β·Depreciation calculated as a fixed percentage of current car value per year
  • Β·Fuel cost calculated from monthly miles, MPG, and gas price per gallon
  • Β·Transit costs include pass, rideshare, and car rental/sharing
  • Β·Opportunity cost (investing savings) calculated at 7% annual return for 5-year projection
When Should You Use This?
  • β†’You're considering giving up your car to save money in a city with transit
  • β†’You want to know if your car is your largest monthly expense
  • β†’You're moving to a new city and evaluating whether to bring your car
  • β†’You're deciding whether to buy a second car for your household
  • β†’You want to calculate how much you'd save by selling your car and switching to transit
Example Scenario

Priya lives in Chicago and pays $520/month on a car loan, $180/month for insurance, $120/month in parking, $85/month in gas, and $80/month in maintenance. Her car, worth $22,000, depreciates $330/month. Her total monthly car cost: $1,315. She researches transit: a $105 Ventra monthly pass plus $80 in Uber rides and $30 for occasional Zipcar trips = $215/month. Switching to transit would save Priya $1,100/month β€” $13,200 per year β€” and if she invests that difference, she'd have over $76,000 in 5 years.

🚌 Public Transport vs Car Calculator

True Car Cost Β· Cost Breakdown Β· 10-Year Timeline Β· What-If Scenarios

Results update in real time. Includes depreciation β€” the most underestimated car cost.

πŸš— Monthly Car Costs

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🚌 Monthly Transit Costs

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⏱ Time Value (Optional)

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About This Calculator

This public transport vs car calculator computes and compares total monthly costs in real time from 12 inputs. Car total = carPayment + insurance + gas + maintenance + parking + registration + depreciation. Transit total = transitPass + rideshare + bikeshare. Annual savings = (carMonthly βˆ’ transitMonthly) Γ— 12. 5-year invested value = annualSavings Γ— ((1.07^5 βˆ’ 1) / 0.07) compounding at 7%. Time value = (hoursSaved Γ— 4.33 Γ— hourlyRate) / 60. Score = clamp(50 + (annualSavings / 12000) Γ— 50). Tiers: Strongly Transit (70+), Lean Transit (58+), Nearly Equal (42+), Lean Car (30+), Strongly Car. All 12 inputs update in real time.

The Breakdown tab renders a donut PieChart of 7 car cost categories (payment/insurance/gas/maintenance/parking/registration/depreciation, each with a distinct color, inner radius 58, outer 95, dark stroke) with side legend showing category name, %, and $/mo β€” then a grouped BarChart of car vs transit at 3 time horizons (monthly/annual/5-year, red/green side-by-side bars with LabelList dollar labels). The Timeline tab renders a dual AreaChart of cumulative spending over 10 years (car red/gradient vs transit green/gradient, 0-yr to 10-yr, showing the gap widening) plus 3 year-milestone boxes (1yr/5yr/10yr savings). The Scenarios tab renders a BarChart of annual savings for 5 scenarios (current/paid off/high parking/remote work/premium transit, ReferenceLine at current and at 0, LabelList dollar labels) then a scenario detail table with car, transit, savings, and winner badge columns. The Insights tab shows 4 key insights (cost comparison summary, 5-year compounded value, time value analysis, leverage points) and 4 conditional action plan items.

Results are estimates only and do not constitute financial, tax, or legal advice. Consult a qualified professional before making financial decisions.

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Common Mistakes to Avoid
  • βœ•Not including depreciation in car costs β€” it's often the largest single expense
  • βœ•Underestimating actual rideshare spend β€” most people spend more than they think
  • βœ•Forgetting parking costs β€” $50–$200/month in many cities
  • βœ•Not accounting for car registration, emissions testing, and other annual fees
Frequently Asked Questions

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