Bus/Train Trip Cost Calculator
Work out what your bus or train commute costs each week, month, and year — and how much you save versus driving. Enter the ticket price, trips per week, and your weekly fuel saving to compare.
Formula
Weekly Cost = Ticket Price × Trips per Week
Monthly = Weekly × 4.33
Saving vs Car = Weekly Fuel Saving × 4.33 − Monthly Tickets
- Weekly cost = ticket price × trips per week.
- Monthly cost multiplies the weekly figure by 4.33 (the average number of weeks per month).
- Annual cost is the monthly figure × 12.
- Saving vs car = your weekly fuel saving × 4.33 minus the monthly ticket cost.
- A positive saving means public transport is cheaper than driving; a negative figure means it costs more.
2.50 ticket, 10 trips/week, 15 fuel saving
Inputs
- Ticket Price (one-way): 2.5
- Trips Per Week: 10 trips
- Weekly Fuel Saving vs Driving: 15
Weekly tickets = 2.50 × 10 = 25, so about 108 per month. Against 15/week of fuel saving (≈65/month), commuting by transit costs roughly 43 more per month here.
Frequently asked questions
Why multiply by 4.33?
A month averages 4.33 weeks (52 weeks ÷ 12 months), giving a more accurate monthly figure than simply using 4.
How do I find my fuel saving vs driving?
Estimate the fuel (and parking) you'd spend driving the same trips each week. That's the weekly amount public transport avoids.
Does this include a travel pass?
No. It assumes per-trip tickets. If you buy a weekly or monthly pass, enter its cost as the equivalent ticket price.
What about car depreciation and insurance?
This compares running fuel costs only. Driving also carries insurance, maintenance, and depreciation, so the real saving is often larger.
Is public transport always cheaper?
Often, but not always — it depends on ticket prices, distance, and how fuel-efficient your car is. The calculator shows which wins for your numbers.