If you already have your flight to Sofia or Burgas and just need to decide how many GB to buy for Bulgaria, this article is for you. I won't repeat the comparison of how to connect: here, you'll find a critical number, a table by travel profile, and an explanation of why you'll spend less in Bulgaria than you imagine. And I'll start with a warning that might cost me a sale.
The short answer: how many gigabytes for Bulgaria
For 10 days in Bulgaria, most people will have enough with 3 GB: maps, WhatsApp, and some social media consume little when you sleep in a hotel with Wi-Fi. If you live on Instagram or TikTok, upgrade to 5 GB. And if you work from there, 10 GB.
That's the number, and I won't hide it at the end of the article. Bulgaria is one of the European destinations where you need to buy the least data, for three reasons I'll explain below: Wi-Fi works well and is everywhere, the country is small and can be traveled in short distances, and a good part of your trip is spent in places (beach, ski slope, monastery, mountain) where your phone stays in your pocket.
If you're coming from the generic cluster article, in how much data do I need for travel, you'll find the complete method for any country. Here, I'm applying it to Bulgaria with specific figures, because the number changes quite a bit depending on whether you're going to Sunny Beach in August, Bansko in January, or teleworking for a month from Plovdiv.
My initial recommendation, before you read on: buy the small package and top up if necessary. Almost no one runs short in Bulgaria; many people, however, return home with half their gigabytes untouched. Paying for data you don't use is the silliest way to waste money on a trip that, precisely, you chose because it's cheap.
Honest warning: Bulgaria is in the EU and your plan already covers you
I'll start with what honesty compels me to say: Bulgaria is part of the European Union, so if you have a normal Spanish plan, your home gigabytes will work there at no extra cost under the European "roam like at home" rules. You don't need to buy anything from us to have internet in Bulgaria. Period.
If your Spanish plan has 20 GB per month and you're going to Sofia for ten days, don't buy anything. Use what you already pay for. I'd rather tell you now than have you get angry when you get back.
That said, there are three real situations where it does make sense to have separate data, and these are the only ones I will advocate for:
- Plans with data limits abroad. Many cheap plans and almost all prepaid ones apply a fair use policy that cuts down available gigabytes outside Spain, even if you have "unlimited data" at home. Check your contract before traveling.
- Travelers from outside the EU. If you're flying from the UK, Switzerland, Turkey, or America, European roaming doesn't apply to you, and the savings are huge.
- Long stays. A month or more of continuous roaming can trigger warnings from your operator, because European rules are designed for travel, not for living abroad.
If you are in any of these three cases, keep reading: the figure you need is in the table in section 4. If not, save yourself the expense and enjoy the trip. And if you have doubts about how all this works, I explain it calmly in internet in Bulgaria, which is the sister article to this one.
What each app actually consumes (real table)
Most people buy 20 GB because they have no idea how much data an hour of Google Maps consumes. Spoiler: almost none. What really devours data is video, and little else. These are the reference figures I use, rounded up to make the estimate conservative:
| Activity | Approximate Consumption | What it means for a trip |
|---|---|---|
| Google Maps navigation | 5-10 MB per hour | A whole week of maps fits in 500 MB |
| WhatsApp (text and audio) | 1-5 MB per day | Irrelevant, don't even count it |
| WhatsApp voice call | 0.5-1 MB per minute | Half an hour a day ≈ 25 MB |
| Video call | 5-12 MB per minute | 15 minutes daily ≈ 150 MB per day |
| Instagram or TikTok (scrolling) | 700 MB - 1.2 GB per hour | The big data hog. This is where your package goes |
| Uploading photos instantly | 3-5 MB per photo | 20 photos a day ≈ 100 MB |
| Uploading a reel or short video | 30-80 MB per video | Two a day ≈ 120 MB |
| Music streaming | 40-150 MB per hour | Highly dependent on chosen quality |
| Video at 480p | 250-300 MB per hour | Acceptable on a mobile screen |
| Video at 1080p or high-quality Netflix | 1.5-3 GB per hour | This only with Wi-Fi, seriously |
| Translator with camera | 2-5 MB per use | In Bulgaria, you'll use it more than usual |
Notice the jump: between navigating with maps all day and watching an hour of TikTok, there's a factor of a hundred. That's why your usage profile weighs much more than your travel days. You can find a more detailed breakdown in the mobile data usage statistics by activity.
Master table: GB by profile and days
This is the table you've been looking for. It's calculated assuming what's normal in Bulgaria: you sleep in a place with Wi-Fi, download heavy content there, and only use mobile data when out and about. If your hotel didn't have Wi-Fi (rare), add 40%.
| Traveler Profile | 5 days | 10 days | 15 days | 30 days |
|---|---|---|---|---|
| Maps and WhatsApp tourist | 1 GB | 2 GB | 3 GB | 5 GB |
| Photos and social media user | 3 GB | 5 GB | 8 GB | 15 GB |
| Digital nomad or remote worker | 5 GB | 10 GB | 15 GB | 30 GB |
| Family sharing with hotspot | 5 GB | 8 GB | 12 GB | 25 GB |
| Skiing in Bansko or Borovets | 3 GB | 5 GB | 8 GB | 12 GB |
A couple of nuances that will save you money. The "maps and WhatsApp tourist" profile is by far the most common and the one that overspends the most: if your plan is to see Sofia, Plovdiv, and the Rila Monastery, taking photos that you upload at night from the hotel, you're in the first row of the table and don't need more.
The "family sharing" profile assumes that one adult's phone acts as a router for two or three other devices, usually for children to watch videos in the car or during transfers from Burgas airport. Consumption does increase there, but it's easy to control: download cartoons at the hotel, and you'll reach the end of the trip with half the data left.
And the remote work profile depends almost entirely on video calls. If you have two one-hour meetings a day, account for 600-700 MB daily just for that. If you work on documents and email, 10 GB per month will be more than enough.
Why you spend little in Bulgaria
Each destination changes the number, and Bulgaria changes it downwards. These are the specific, not generic, reasons:
Wi-Fi is good and everywhere. Sofia has thousands of free access points in cafes, restaurants, shopping centers, and public spaces, and on the coast, almost every hotel or apartment includes a connection. In Bulgaria, you won't have the problem of Wi-Fi that won't even load a photo: the country's internet infrastructure is solid and cheap, and it shows.
Travel distances are short. Sofia-Plovdiv is about two hours; Burgas-Sunny Beach, half an hour. There are no internal flights or eight-hour bus journeys where people burn through three gigabytes of series. Less downtime, less consumption.
Taxis are ordered with light apps. TaxiMe, Yellow Taxi, or Bolt work in Sofia, Plovdiv, Varna, and Burgas and consume very little data: a car request is only a few hundred kilobytes. Don't worry about that.
Since January 2026, Bulgaria uses the euro, so you save yourself the constantly open currency converter. A minor detail, but it makes a difference mentally more than in gigabytes.
The only extra expense specific to Bulgaria is the Cyrillic alphabet. Menus, street signs, supermarket labels, and bus schedules are often only in Cyrillic, and you'll rely on the camera translator much more than usual. Even so, we're talking about megabytes, not gigabytes: download the offline Bulgarian package before you leave, and that consumption disappears entirely.
Summer on the Black Sea: Sunny Beach and Varna
The typical summer trip to Bulgaria is a cheap package to Sunny Beach, Nessebar, Golden Sands, or Varna, with a flight to Burgas or Varna and a beachfront hotel. For this profile, the figure is one of the lowest in Europe: 2 or 3 GB for ten days is enough for almost everyone.
The reason is simple. You spend eight hours a day on the beach or by the pool, with your phone on your towel and the screen off because you can't see anything in the sun. You eat at the hotel, which has Wi-Fi. And at night, you're having dinner or strolling along the promenade, not watching shows. The actual consumption of a beach day in Sunny Beach is about 150-250 MB between WhatsApp, a few stories, and checking the weather.
Where it spikes: if you're one of those who uploads reels from your sunbed. Each short video is 30-80 MB, and five a day for a week is almost 3 GB just for uploads. If that's you, go to the "photos and social media" row in the table and get 5 GB for ten days.
A useful warning for the area: in August, with Sunny Beach overflowing, the mobile network gets saturated at times on the beachfront due to sheer population density. It's not that you're using more data; it's that it's slow. If this happens, use the beach bar's Wi-Fi or wait half an hour; buying more gigabytes won't fix a congested cell.
Winter in Bansko and Borovets: cold, photos, and battery
The ski profile is different and deserves its own row. Bansko, Borovets, and Pamporovo are among the cheapest resorts in Europe and attract many Spaniards every winter. Here, the honest recommendation is 5 GB for a long ski week, and the explanation has less to do with data than with battery life.
The cold on the slopes, between minus five and minus fifteen degrees, drains your phone's battery much faster than usual: a phone that lasts all day in Sofia might be at 20% by midday on the Bansko gondola. The practical effect is curious: you use less data than you think because your phone is off or put away half the day.
What does consume data are photos and videos on the slope. A normal ski day involves 40 or 50 photos and several videos, and if you upload them hot off the lift, that's easily 300-400 MB in an afternoon. Multiply that by six days of lift passes, and there's your package.
My two tips for the snow, in this order. One: carry an external battery and keep your phone in an inner pocket, close to your body, because the number one problem isn't gigabytes. And two: upload your content at night from your apartment, using the accommodation's Wi-Fi, instead of doing it in the lift line. With those two things, 5 GB will be more than enough for the whole week.
Rila, Pirin and the road: where you won't spend anything
Bulgaria has good 4G coverage in cities, coastal areas, and ski resorts, and 5G in large urban areas. But as soon as you head into the mountains, things change, and that's relevant for your calculation for a pleasant reason: in areas without coverage, you won't spend anything.
| Area | Typical Coverage | Expected Consumption |
|---|---|---|
| Sofia, Plovdiv, Varna, Burgas | Solid 4G/5G | Normal, your daily usage |
| Sunny Beach, Golden Sands, Nesebar | Good 4G, saturated in August | Low, lots of hotel Wi-Fi |
| Bansko and Borovets (town and slopes) | 4G in the valley and base stations | Medium, mainly due to photos |
| Rila Monastery and its road | Patchy, with stretches of no signal | Almost zero during the excursion |
| Seven Rila Lakes and high Pirin mountains | Very patchy | Zero, have everything downloaded |
| Intercity roads | Good on highways, patchy on secondary roads | Low, navigation only |
The practical consequence is that on the day you go up to Rila Monastery or hike the Seven Rila Lakes, your data consumption will be practically zero. These are full-day excursions that are free in terms of gigabytes. What you do need to do is download the map of the area before leaving Sofia, because if you rely on it loading in real-time, you'll be stranded on a curve with no signal. Google Maps allows you to download an entire region, which takes up about 100-200 MB per area; do it using the hotel Wi-Fi.
How to know your actual consumption before leaving home
All the above are averages, and you are not an average. There's a way to stop guessing that takes two minutes and is the most useful tip in this article: check how much data you used last month on your own phone and extrapolate.
- On Android: Settings → Network & Internet → SIM → App data usage. This shows you the total for the cycle and a breakdown by app.
- On iPhone: Settings → Mobile Data. Scroll down to the app list and look at "Current Period" (note: if you've never reset it, that number could be years old).
Take the monthly total, divide it by 30, and you have your daily consumption at home. Now adjust for the trip with two corrections: subtract between 40% and 60%, because at home and in the office you're almost always on Wi-Fi, and in Bulgaria you'll also sleep with Wi-Fi, and add 20% if you know you'll be taking more photos and videos than usual, which is common on vacation.
A real example. If you use 9 GB a month in Spain, that's 300 MB a day. Applying the correction, you're left with about 150-200 MB of daily mobile data in Bulgaria, meaning less than 2 GB for ten days. This fits exactly with the first row of my table, and that's why I insist so much: people buy three or four times what they need. Five minutes checking your settings will save you the entire mistake.
How to extend your data without suffering
If you still want to make the small package last, these adjustments give you plenty of leeway without sacrificing anything important. None of them will ruin your trip.
- Downloaded maps. Download Sofia, Plovdiv, and the Rila area before you leave. It's the most peace of mind for the least money.
- Backups only with Wi-Fi. The classic mistake: Google Photos or iCloud uploading every 4 MB photo as soon as you take it. Disable uploads over mobile data, and you've already saved more than with everything else combined.
- Video at 480p. On a mobile screen, you won't notice the difference, and you'll go from 1.5 GB per hour to 300 MB.
- No autoplay. Instagram, TikTok, Facebook, and X autoplay videos just by hovering over them. Turn this off in each app's settings.
- Data saver mode activated on your system, and restrict background usage for data-heavy apps.
- Offline translator and Spotify. Download Bulgarian and your playlists at the hotel.
With these six adjustments, an average traveler goes from using 400 MB per day to less than 150 MB. I have the complete guide, with screenshots and the recommended order of operations, in how to save data while traveling. And if you're worried about running out of battery in the snow, remember that saving data also extends battery life, because your phone's radio is one of the biggest power consumers.
What if you run out
This is the question that stops many people, and the answer is reassuring: running out is not a drama, overspending is just wasted money. When your package runs out, you simply stop having data: there's no surprise bill, no excess charges, nothing to explode. You'll still have Wi-Fi at the hotel, and you can top up in a couple of minutes.
| Package | Map Tourist | Photos and Social Media | Remote Work |
|---|---|---|---|
| 1 GB | 5-7 days | 2-3 days | 1-2 days |
| 3 GB | 15 days or more | 6-8 days | 3-4 days |
| 5 GB | Over a month | 10-12 days | 5-6 days |
| 10 GB | Well above what's needed | 3 weeks | 10-12 days |
The risk math is very clear. If you buy the small package and run out, you lose two minutes topping up from your hotel's Wi-Fi. If you buy the large one "just in case" and don't use it, you've lost the entire price difference, with no possible recovery. In a cheap destination like Bulgaria, where you chose the flight and hotel precisely for the price, it makes no sense to inflate the only expense you can adjust to the penny.
My rule: start with the row that corresponds to you in the table and check your data usage in your phone settings after three days. If you're on track, don't touch anything. If you're using data quickly, top up without drama. If you have half left, you know what to buy next time.
Frequently asked questions
The most common questions I get about gigabytes in Bulgaria, answered in two lines each.
How many GB do I need for a week in Bulgaria?
2 GB is more than enough for seven days if you're a normal tourist using maps, WhatsApp, and some social media. If you upload photos and videos daily, plan for 3 or 4 GB. Only those who will work from there with daily video calls will need more than 5 GB.
Will my Spanish plan work in Bulgaria?
Yes: Bulgaria is in the European Union, and your Spanish plan works there at no extra cost. Just check two things in your contract: if there's a GB limit abroad and if you have a prepaid plan, as this is where reasonable use restrictions often appear.
How many MB do I use on average per day in Bulgaria?
Between 150 and 250 MB per day for a normal traveler staying at a place with Wi-Fi. A beach day in Sunny Beach drops to 150 MB; a city day in Sofia with maps and taxis is around 250 MB; a day uploading videos goes over 500 MB.
Do I need more data if I go skiing in Bansko?
A little more than in the city: plan for 5 GB for a week of skiing. It's not because the slopes use more, but because of the volume of photos and videos uploaded. Keep in mind that cold weather drains battery very quickly, so your phone will be stored away more often than you think.
Is there free Wi-Fi in Bulgaria?
Yes, and it's very good. Sofia has thousands of free hotspots in cafes, restaurants, and public spaces, and in coastal and ski resorts, almost all accommodations include it. This is one reason why less data is needed here than in other destinations.
Will I have coverage at Rila Monastery?
Irregular: there are sections of the road and mountain without signal. Download the area map before leaving Sofia and save your route. The good news is that your data consumption that day will be practically zero, so don't add it to your calculation.
What happens if I run out of data halfway through my trip?
Nothing serious: you simply run out of data, with no surprise charges. You connect to the hotel's Wi-Fi, top up in a couple of minutes, and continue. That's why I always recommend starting small instead of paying in advance for gigabytes you probably won't use.
Is it worth buying a large package just in case?
No, especially not in Bulgaria. Data you don't use isn't refunded, while topping up takes two minutes. If you're torn between two sizes, choose the small one: in a destination with this level of Wi-Fi, running out is rare, and fixing it is trivial. If you want to understand the technology behind it, see what an eSIM is.
Conclusion
To summarize without beating around the bush: for ten days in Bulgaria, 3 GB is enough for the vast majority; 2 GB if you only rely on maps and WhatsApp; 5 GB if you live on social media or are going skiing; 10 GB if you're bringing work with you. And before all that, the check that truly matters: if you have a Spanish plan without restrictions abroad, don't buy anything, because Bulgaria is in the EU, and you're already covered.
If you fall into one of the cases where it does make sense to have separate data — a plan with limits outside Spain, a traveler from outside the EU, or a long stay — choose the size that appears in the table and not the one that scares you. You can see prices and options for the Bulgaria eSIM, and if you want details on coverage and operators in the country, you can find them in the eSIM guide for Bulgaria.
My final advice is the same as I started with: start small and top up if necessary. Bulgaria is a cheap destination with excellent Wi-Fi and short journeys, and that's exactly the type of country where people tend to overbuy gigabytes. Save there and spend it on dinner in the old town of Plovdiv—it's better value and you'll enjoy it much more.
