Mobile Data & eSIM Calculator

Pack Lightly is a free tool designed to help travelers estimate their mobile data requirements for international trips. It allows users to calculate data consumption and compare various eSIM providers and local SIM cards across 146 countries without requiring an account. Select your destination and trip length, set how heavily you use each app category (social, maps, video, calls), and the calculator outputs a recommended GB amount. It then shows eSIM plans from 4 providers and local SIM options side by side, with a personalized recommendation based on your travel style.