Travel guide
How Much Data Do I Need for a Week Abroad? A Simple Guide
How much data do I need for a week abroad? See approximate usage per app and per trip length, so you can pick the right plan and never run short.
How much data do I need for a week abroad? For most people, somewhere between 3 GB and 10 GB, with around 1 GB a day being a sensible guide for maps, messaging, social media and browsing. Light users who lean on hotel Wi-Fi can manage with less; anyone streaming video or making regular video calls will need considerably more.
In short:
- About 1 GB a day covers typical travel use; light users can manage on 300–500 MB.
- Video is what eats data. Messaging, maps and email barely register.
- A week usually means 3–10 GB; two weeks in Europe usually means 7–20 GB.
- If you are unsure, pick a plan you can top up, or an unlimited day pass if you stream or work online.
How much data do I need for a week abroad?
The honest answer is that it depends on how you use your phone, not on where you are going. A week in Rome uses the same data as a week in Madrid if you do the same things. What matters is the mix of apps you use away from Wi-Fi.
As a starting point, it helps to think in three types of traveller:
- Light: messaging, maps, email and the odd search. Wi-Fi at the hotel in the evening. Around 200–500 MB a day.
- Typical: all of the above, plus social media, sharing photos, booking things on the go and a few voice calls. Around 0.5–1.5 GB a day.
- Heavy: streaming, regular video calls, uploading lots of photos and video, or working online. 2 GB a day or more.
Most holidaymakers sit in the typical group. That is why the trip planner in the Roamy app uses about 1 GB a day as its guide when it recommends a plan for your trip length.
How much mobile data per day travelling: usage by activity
The figures below are approximate. Real usage varies with the app, your settings, picture quality and network conditions, so treat them as ballpark ranges rather than exact numbers.
| Activity | Approximate data use |
|---|---|
| Text messages on WhatsApp, iMessage etc. | Very little; a few MB for hundreds of messages |
| Sending or receiving a photo in a messaging app | Roughly 0.1–0.5 MB per photo |
| Voice call over WhatsApp or similar | Roughly 30–90 MB per hour |
| Video call | Roughly 300 MB–1 GB per hour |
| Navigation in a maps app | Roughly 5–20 MB per hour; more when browsing the map or satellite view |
| General web browsing and email | Roughly 50–150 MB per hour |
| Scrolling social media with photos | Roughly 100–300 MB per hour |
| Short-video apps and video-heavy feeds | Roughly 0.5–1 GB per hour or more |
| Music streaming | Roughly 40–150 MB per hour, depending on quality |
| Netflix on mobile, Automatic setting | About 0.25 GB per hour |
| Video streaming in HD | Up to about 3 GB per hour |
The Netflix figures come from its own guide, How to control how much data Netflix uses, which also explains that the Save Data setting gives about six hours of viewing per gigabyte.
What this means in practice
A full day of sightseeing with maps open, a handful of messages, a few photos shared and some time on social media often lands somewhere around 0.5–1 GB. Add an hour of video calling home and you can double that. One evening of HD streaming on mobile data can use more than the rest of the day combined.
How long does 1GB last?
This is the question most people actually want answered, so here are rough examples of what 1 GB covers on its own:
- about 7–20 hours of browsing and email,
- about 50 or more hours of map navigation,
- about 7–25 hours of music streaming,
- about 1–3 hours of video calls,
- about 4 hours of Netflix on mobile’s Automatic setting, or around 20 minutes in high definition.
In real life you mix these, so 1 GB is usually about a day of typical travel use, or two to three days for a light user.
A sample day on 1 GB
To make that concrete, here is how a fairly ordinary sightseeing day might add up, using the approximate figures above:
- two hours of map navigation between sights: around 20–40 MB,
- a steady trickle of WhatsApp messages and 30 shared photos: around 20–40 MB,
- an hour of social media on the bus or over lunch: around 100–300 MB,
- an hour of browsing for restaurants, tickets and opening times: around 50–150 MB,
- a 20-minute video call home in the evening: around 100–300 MB.
That comes to roughly 300–850 MB, which is why 1 GB a day leaves a little headroom for most people. Swap the video call for an evening of streaming and the total can easily pass 2 GB.
Data for two weeks in Europe and other trip lengths
Once you know your daily use, multiplying it out is simple. The table below gives approximate totals for common trip lengths.
| Trip length | Light user | Typical user | Heavy user |
|---|---|---|---|
| Weekend (3 days) | 1 GB | 1–3 GB | Unlimited day pass |
| One week | 2–3 GB | 3–10 GB | Unlimited day pass |
| Two weeks | 3–7 GB | 7–20 GB | Unlimited day pass |
| One month | 5–15 GB | 15–40 GB | Unlimited day pass |
For data for two weeks in Europe, most travellers who use their phone through the day without streaming will be comfortable with around 10 GB, or more if you share a lot of video. If you are visiting several countries, a regional plan saves you buying separate eSIMs, but check that every country on your route is on the plan’s coverage list. Roamy’s Europe eSIM starts from $1.90.
Fixed data or unlimited?
Roamy offers two kinds of plan, and the right one depends on your profile:
- Fixed-data plans (for example 1 GB, 3 GB, 5 GB or 10 GB for 7, 15 or 30 days) suit light and typical users. Most can be topped up, so you can start a little lower and add data to the same eSIM in the app if you need it. There is nothing new to install.
- Unlimited day passes let you choose anywhere from 1 to 90 days. Each day has a full-speed allowance, then speed is reduced until the next day starts. They suit heavy users and anyone who would rather not count megabytes. Unlimited plans cannot be topped up, so choose enough days at the start. For Europe, day passes are around $5.55 a day.
What about calls and texts?
Many travel eSIM plans are data-only. Roamy plans, for example, have no phone number and do not include calls or SMS, so your usual SIM keeps your number for calls and texts. In practice, most travellers make their calls over WhatsApp, FaceTime or similar apps, which run on data and are already included in the figures above.
If you expect to make a lot of voice or video calls, budget for them. An hour of voice calls a day adds very little, but an hour of video calls a day can add several gigabytes over a week.
How to make your data go further
A few settings make a big difference, and most take seconds to change.
Download before you go
Save offline maps for the cities you are visiting, download playlists and podcasts, and grab any films for the flight while you are on home Wi-Fi.
Stop background uploads
Photo backup is one of the most common surprise data users. Set iCloud Photos, Google Photos or similar to upload over Wi-Fi only until you are home.
Use low-data modes
- iPhone: go to Settings › Mobile Service (or Cellular), tap your travel line, then Mobile Data Mode and choose Low Data Mode.
- Android: go to Settings › Network & internet › Data Saver and switch it on. Google explains how it works in Use less mobile data with Data Saver; menu names may differ slightly on non-Pixel phones.
You can also turn off autoplay for videos in social apps and lower the streaming quality in Netflix, YouTube or Spotify.
Keep an eye on usage
Both iPhone and Android show data used per line and per app in their mobile data settings. Checking after the first day or two tells you quickly whether your plan is on track.
Get connected with Roamy
Roamy has data-only eSIM plans for 172 countries, from small fixed plans you can top up to unlimited day passes. Install at home on Wi-Fi in about a minute, and your plan only starts when you first connect at your destination. Browse all destinations or go straight to Italy to find the right amount of data for your trip.
Frequently asked questions
Is 1GB a day enough when travelling?
For most travellers, yes. Around 1 GB a day comfortably covers maps, messaging, social media and some browsing. You will only need more if you stream video, make lots of video calls or upload large files over mobile data.
How much data do I need for 2 weeks in Europe?
A light user who relies on hotel Wi-Fi may manage with 5–7 GB, while a typical traveller using maps, social media and messaging through the day will want roughly 10–20 GB. If you stream or work online, an unlimited day pass is usually simpler.
How long does 1GB of data last on holiday?
Roughly a day of typical use, or two to three days if you mostly use messaging, maps and email. Streaming video in HD can use 1 GB in well under an hour, so it depends heavily on what you do.
Does Google Maps use a lot of data abroad?
Navigation itself uses relatively little, often in the region of tens of megabytes per hour, though exploring the map and satellite view uses more. Downloading offline maps on Wi-Fi before you go cuts this further.
What uses the most data when travelling?
Video is by far the biggest: streaming, video calls, short-video social apps and automatic photo or video backups. Messaging, email and navigation use very little by comparison.
