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🛠️ Free tools
Travel tools that actually help
Free calculators and planners built for UK travellers. No sign-up, no ads, no faff.
⭐ Most used
eSIM Comparison Tool
Compare 3,900+ travel eSIM plans across 110+ destinations. Ranked by price per GB, no sponsored listings.
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🔥 Popular
Travel Budget Calculator
Get a full cost breakdown for any trip. Flights, accommodation, food, transport, and activities — personalised to your travel style.
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Everything we've built
Enter your route and flight time to get your personalised recovery timeline, recommended bedtime schedule, and tips to adjust faster.
Calculate the carbon footprint of any flight, see how it compares to everyday activities, and explore verified offset options by project type.
Not sure how much data you need? Tell us your daily habits and trip length and we'll recommend the right plan size before you compare prices.
Convert between GBP and 30+ travel currencies with live rates. Works without an internet connection once loaded.
Travelling in a group? Add all your shared costs, assign who paid what, and see exactly who owes who at the end of the trip.
Get a custom packing list based on your destination, trip length, activities, and the weather forecast. Never forget your adapter again.
UK passport holders: check whether you need a visa for your destination, estimated costs, and current processing times.
Interactive month-by-month breakdown of weather, crowd levels, and typical flight prices for 100+ destinations worldwide.
Get a ballpark cost for travel insurance based on your destination, trip length, age, and any pre-existing conditions.
Common questions
About our tools
Yes, completely. No sign-up, no email required, no paywall. Travel City earns affiliate commission when you compare and buy an eSIM through our site. That revenue lets us build and maintain these tools for free.
Our calculators use real-world benchmarks and established methodologies. The budget calculator uses destination-specific accommodation rates and style multipliers. The CO2 calculator uses ICAO methodology with radiative forcing. The jet lag calculator applies peer-reviewed directional asymmetry research. All tools are planning aids rather than precise quotes.
No. All calculations happen in your browser. We do not store, log, or transmit any inputs you enter into our tools. Read our privacy policy for more detail.
The eSIM comparison tool updates daily. The calculators are reviewed and updated quarterly — we check accommodation benchmarks, emissions factors, and exchange rates regularly to make sure estimates stay realistic.
Yes, use the suggestion box above. We read every submission. Tools that get requested most often go to the top of the build list.