📊 Travel Data Calculator
How much eSIM data do you actually need? Let's find out.
📱 Daily Usage (hours per day)
You'll need approximately:
(includes 10% safety buffer)
Find Plans for Japan →💡 We recommend rounding up to the nearest standard plan size (e.g., if you need 3.5GB, buy 5GB).
📊 How We Calculate
Based on 2025 industry averages: Social media uses ~600MB/hr (TikTok/Reels), Maps ~20MB/hr, HD Video ~2.5GB/hr, Video calls ~800MB/hr, Music ~50MB/hr. Results include a 10% buffer.
🔗 Related Tools
📊 How to Save Data While Traveling
Does Google Maps use a lot of data?
Surprisingly, no. Google Maps uses very little data if you download offline maps before you leave your hotel Wi-Fi. Navigation typically uses less than 5MB per hour.
What apps drain the most data?
Social media apps (Instagram, TikTok) and video streaming (YouTube, Netflix) are the biggest data hogs. A 5-minute scrolling session on TikTok can burn 100MB. Use these apps on Wi-Fi only.