Build your journey
—cheapest option
—lowest carbon
—saving vs petrol
—freedom fund if saved
Journey maths breakdown
Real travel choices mix money, time, comfort, and carbon. This model uses simple estimates so you can see the trade-offs clearly.
| Option | Cost maths | Total cost | Carbon estimate | Time estimate |
|---|---|---|---|---|
| Press compare to run the route. | ||||
Try changing passenger numbers. When does sharing a car become cheaper, and when does the train still win on carbon?
TrainsCarsClimate mathsBudgeting
Green journey challenges
Mission 1: Railcard detective
Increase the railcard discount until the train beats the petrol car on price. What discount was needed?
Mission 2: EV charging scout
Change the charging price from motorway-fast to home charging. How much does the EV budget improve?
Mission 3: Carbon captain
Find a trip where the cheapest choice is not the greenest. How would you explain the trade-off?
Mission 4: Freedom fund
If you saved the cheapest-option saving every month, how many trips until you have £250 for a future adventure?