How much data do you really need? 🤔
Drag the sliders. Watch the number dance. Pick your perfect eSIM. Jambo! 🦁
Written by the JamboSim eSIM support team ·
How much data do you need? The short answer
Most travellers use between 500 MB and 1 GB of mobile data per day abroad. Light users who mainly need maps, messaging and boarding passes get by on 3 GB for a week. If you stream video, upload holiday reels or use your phone as a hotspot, plan on 1.5–2 GB per day instead. Drag the sliders above and the calculator turns your daily habits into a realistic trip total.
Rules of thumb per day
- Maps, chat and email only: 200–400 MB per day
- Add social scrolling and a few photo uploads: 500 MB–1 GB per day
- Streaming music plus some video calls: 1–1.5 GB per day
- Netflix, YouTube or hotspot for a laptop: 2 GB+ per day
How long is your trip? 🧳
We'll multiply your daily usage by this - so you see what you really need.
Your average day, on the road 📱
Drag each slider to match how long you typically spend on each category per day.
Instagram, TikTok, X, Facebook, Snapchat
Zoom, Google Meet, Teams, FaceTime
YouTube, Netflix, Spotify, Twitch, mobile games
WhatsApp, Telegram, iMessage, Signal
Maps, Uber, delivery apps, AI chat
How we crunch the numbers 🧮
For each category we use a realistic average data rate (in GB per hour). Multiply that by your daily hours and your trip length - that's it. No magic.
- 📲 Social Media - 0.8 GB/h
- 🎥 Video Calls - 0.9 GB/h
- 🎮 Entertainment & Gaming - 1.5 GB/h
- 💬 Messaging - 0.05 GB/h
- 🗺️ Maps & Utility - 0.25 GB/h
These are conservative averages - real usage depends on video quality, network, and how chatty your group chat is. When in doubt, round up. 🍹
That's about… ✨
for your 7-day trip
≈ 0 GB / month · 0 GB / day
Pssst - drag a slider to wake me up 👀
Estimates only - your real usage may vary. How JamboSim works
How to use the eSIM data calculator
- 1
Set your trip length
Choose how many days you will be abroad. The calculator uses this to turn a daily estimate into a total for the whole trip.
- 2
Drag the sliders per activity
Estimate the hours per day you spend on social media, video, music, messaging and navigation. Be honest - most people underestimate video.
- 3
Read your trip total
You get an estimated total in GB, plus the monthly and daily average, so you can compare plans quickly.
- 4
Pick a matching eSIM
Tap “Find my plan” and we show only the JamboSim eSIM plans with enough data for your destination.
How much data each app really uses
These are the averages our calculator works with, based on typical mobile settings.
| Google Maps navigation | ~5 MB per hour |
|---|---|
| WhatsApp / iMessage chat | ~10 MB per hour |
| Instagram or TikTok scrolling | ~150 MB per hour |
| Spotify streaming (normal quality) | ~70 MB per hour |
| WhatsApp video call | ~300 MB per hour |
| Netflix or YouTube (standard definition) | ~700 MB per hour |
| Netflix or YouTube (HD) | ~2 GB per hour |
Six ways to use less data abroad
- Download offline maps and playlists on hotel WiFi before you head out.
- Set streaming apps to “data saver” or standard definition.
- Turn off automatic photo and cloud backups while roaming.
- Disable app auto-updates on mobile data.
- Use WiFi calling for long calls home where your device supports it.
- Check your remaining data in your JamboSim account so you can top up before you run out.
Frequently asked questions about eSIM data use
How much data do I need for a week abroad?
For a one-week trip, 3 GB is enough for maps, messaging, email and light social media. If you stream video or share a lot of photos and videos, 5–10 GB is more comfortable. Heavy users or anyone tethering a laptop should look at 20 GB or an unlimited plan.
How much data does Google Maps use per day?
Navigation is surprisingly light: around 5 MB per hour, so even three hours of driving a day is about 15 MB. Downloading offline maps before you travel drops that to almost nothing.
Is 1 GB per day enough for travelling?
Yes, for most travellers. 1 GB per day covers maps, messaging, email, social media and the occasional video call. It is not enough for daily video streaming in HD or for using your phone as a hotspot.
How much data does streaming video use?
Roughly 700 MB per hour in standard definition and up to 2 GB per hour in HD. Watching one HD film abroad can use more data than a whole week of maps and messaging.
What happens if I run out of eSIM data?
Your data simply stops working - there are no surprise roaming bills. You can buy a top-up for the same eSIM in your JamboSim account in a couple of minutes and keep the same phone number and setup.
Does WhatsApp calling use a lot of data?
Voice calls use about 15 MB per hour, so they are very cheap on data. Video calls are much heavier, at around 300 MB per hour.
Is this calculator accurate?
It is an estimate based on average usage per hour at normal quality settings. Real usage depends on your device, video quality and how many apps refresh in the background, so we recommend adding around 20% buffer to your result.