travel · free Companion App · local in this browser
Roaming Data Cost Estimate
Turn the days abroad and the data you expect each day into a total in gigabytes and an estimated cost at your carrier's rate.
Enter your numbers
Enter only the details needed for this task. Check them against the original source.
Your result
Your result will appear here.
Engine self-test
Running golden cases…
Source notes
- U.S. Federal Communications Commission — Wireless Roaming
International roaming rates and day passes vary by carrier; travelers should compare roaming prices to local SIM or eSIM options before leaving.
Reviewed 2026-10-10. Prices and coverage change constantly; check your carrier and destination options before departure.
What this App does not do
This App estimates data and cost from the numbers you enter. It does not show coverage, compare plans, or replace a carrier quote.
This free App has no paid features. It does not contact an agency, employer, bank, seller, provider, or other person.