Travel planning calculators
Every part of a trip that has a number attached, worked out before it costs you something: whether the cabin bag clears the sizer, how long the flight really takes, what the drive adds up to once tolls and fuel are in.
Each calculator answers in one screen and shows its working. The figures behind it come from whoever sets them — the carrier’s own allowance, the toll operator’s tariff — and every page names those sources with the date each was last checked.
Which one do you need?
Before you fly
The three things that go wrong at the airport: a bag that does not fit, a connection tighter than it looked, and a first morning lost to the time difference.
- Carry-on size checkerYour bag against one airline's real limit, wheels and handle included.
- Flight time calculatorGate-to-gate time, local landing time and what that is on your body clock.
- Jet lag calculatorDays to adjust, a night-by-night plan, and when you can be sharp again.
- Time difference calculatorThe gap between two cities today — and the week it is about to change.
On the road
What a drive actually costs — the distance, your own car’s consumption, then tolls and vignettes, not the fuel estimate alone.
- Distance between citiesStraight line, realistic road distance and flight time for one city pair.
- Gas mileage calculatorYour real mpg from one tank — in every unit a car manual uses.
- Fuel cost calculatorGas for the trip, split between everyone in the car.
- Toll and vignette calculatorTolls and vignettes per country, with the sticker traps named.
- Road trip cost calculatorThe whole trip: fuel, tolls, rooms and food, per person and per day.
Questions people actually ask
- How current are these figures?
- Baggage allowances and toll tariffs change, so no calculator stays right forever. Each page names the source behind its numbers and the date that source was last checked — if the date looks old to you, the operator’s own page is the one that decides.
- Is the result binding?
- No. At the gate, at the toll booth and at the counter it is the company’s rules that apply, and the company is free to change them. The result is there to tell you that you are close to a limit before you are standing in the queue.
- Do I have to accept anything to use a calculator?
- No. Everything is worked out in your browser, nothing you type is sent anywhere, and the consent bar stays at the foot of the page instead of standing in front of the tool.
Guides
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