Free Travel Calculators & Tools

Trips, planned properly

Most trip maths happens in the 48 hours before you leave. The flights are booked, the hotel is paid, and suddenly the real questions pile up: what time does that actually land in local time, what will the week cost per day once you are honest about food and taxis, and have you packed the one charger that matters? These are the tools for that exact moment.

There are eight of them, and they follow the order trips actually unfold in. Flights covers the Flight Tracker and the Flight Duration Calculator. Trip Planning holds the Trip Budget Calculator, the Packing List Generator and the Jet Lag Planner. On the Road keeps the Time Zone Converter, the Distance Calculator and the Fuel Cost Calculator. Start at the top of the trip and work down, budget first, then pack, then fly, then drive.

Everything runs in your browser, and that matters more abroad than it does at home. Hotel Wi-Fi in a country where you do not speak the language is exactly where you do not want your plans, documents and numbers wandering off to somebody else's server. Your entries stay on your device, nothing needs an account, and every tool is free.

Flights: where your plane actually is

The Flight Tracker answers the question every traveller asks at the airport: is it actually on time? Punch in the flight number and you get the live status, boarding, delayed, landed, which beats staring at the departures board and hoping. A common mistake is checking once and assuming it holds; on a day with rolling delays, check again about an hour before you leave for the airport. That single habit has saved more missed connections than any travel insurance policy.

The Flight Duration Calculator does the arithmetic everyone gets wrong: adding flight time to departure time without accounting for time zones. A 9 hour flight leaving Karachi at 09:00 and landing in London does not arrive at 18:00. London runs 4 hours behind in winter, so you land at 13:00 local. Get this wrong and you book a hotel check in you cannot use, or a connecting flight you cannot make. The calculator works out both the airborne time and the local arrival from your route, so the number you plan around is the real one.

Before you go: budget, pack, sleep

The Trip Budget Calculator exists because "about £1,500" is how trips quietly become £2,200 trips. Enter flights, accommodation per night, daily food and local transport, activities, and a 10% buffer for the surprises that always appear, the airport taxi at 1am, the attraction that costs double what the blog said. A worked example: a 7 day trip with $850 flights, $110 a night for the hotel, $60 a day for food, $200 of activities and a 10% buffer comes out around $2,530, or roughly $240 a day once you spread the flights across the week. That per day figure is the useful one. It is how you compare destinations honestly.

The Packing List Generator fixes the classic packing mistake: packing for the trip you imagine instead of the weather you are getting. Tell it the trip type, the days, and the climate, and it builds a list you can tick through the night before you fly. Most people forget the same five things, chargers, adapters, medication, a pen for arrival forms, and something warm for over air conditioned airports, so the list weights those heavily. The Jet Lag Planner handles the other pre departure job: shift your sleep by an hour or two toward the destination time zone for three or four days before you fly, then chase daylight on arrival morning. Flying London to New York, five hours west, it will walk you back to a 1am bedtime by departure day, which takes most of the sting out of the first morning.

On the road: time zones and fuel

The Time Zone Converter is the one you will open mid trip. "Can we do 3pm?" means nothing until both sides agree whose 3pm. A 15:00 call in Dubai is 11:00 in London in winter and 12:00 in summer, get the season wrong and somebody waits an hour. The tool converts instantly and shows both sides, which is worth using in writing: confirm meeting times in the other person's time zone, in the message, so there is no argument later about who said what.

The Distance Calculator and Fuel Cost Calculator split the driving maths. Put in the route and your car's real fuel economy, not the brochure number, the one your dashboard shows after a month of normal driving, and you get the fuel cost for the trip. A 600-mile round trip at 32 mpg with fuel at $3.40 a gallon works out around $64, and the calculator also shows the per passenger cost when you split it. That number settles the "you owe me for petrol" conversation before it starts.

When plans break: delays and the rebook scramble

Every frequent traveller has a delay story, and they all share one lesson: the first hour decides everything. When a cancellation posts, do not join the customer service queue with everyone else, open the airline's app and rebook yourself while the agents are still answering the first callers. The Flight Tracker earns its keep here: knowing your inbound aircraft is itself delayed tells you the cancellation was coming before the gate agent admits it.

Keep every receipt from a disrupted trip, meals, the hotel you booked yourself, the taxi. In the UK and EU, long delays and cancellations can entitle you to fixed compensation on top of the rebooking, and even where no such scheme applies, a documented claim beats an angry phone call every time. Travel insurance is worth exactly what its delay clause says, so read that paragraph before you buy, not after you need it. Screenshot the delay notice too; airlines' apps have a habit of rewriting history once the disruption is over.

Worth knowing before you book anything

• Book accommodation with free cancellation, then re check the price a week before you go. Hotels drop rates to fill rooms, and a two minute re book can save 15 to 20%.
• Screenshot your packing list and your hotel confirmation. Airport Wi-Fi fails exactly when you need it most.
• Fill up before the motorway service station. Fuel there routinely costs 10 to 20% more than the station two junctions back.
• The 10% budget buffer is not optional. Something, a taxi, a fee, a "we have to try this" dinner, always costs more than the plan says.
• For jet lag, the plane is the enemy and daylight is the cure. Skip the heavy airline meal, sleep if it is night at your destination, and get outside within an hour of landing.
• Check the flight status one last time an hour before leaving for the airport. Rolling delays stack, and the departures board at home lags the live data.
• Download offline maps and your hotel confirmation before you leave Wi-Fi. A local eSIM or SIM at the arrivals hall beats a week of roaming charges.