How to use the Travel Data Calculator
Fill in the fields on the left. Results, charts and the breakdown update instantly as you type or move a slider. Pick your country at the top of the page to switch currency.
Formula
Data = (browsing × 0.1 + social × 0.7 + maps × 0.02 + music × 0.15 + video × quality + calls × 1.2) GB/hour × days × (1 − Wi-Fi share) × 1.15
Frequently asked questions
How much data do I need for 2 weeks in Europe?
Light users (maps, messaging, browsing) need 3–5 GB; regular users with social media 10–15 GB; heavy video users 20 GB or more.
Does Google Maps use a lot of data?
No — navigation uses only about 5–20 MB per hour. Download offline maps to use almost none.
Results are estimates for information only and are not financial, tax or legal advice. Tax rules, interest rates and fees change, so confirm important numbers with your bank, employer or a qualified adviser. Read our disclaimer.