This is a web-app that allows users to input two US zip codes and returns the straight-line distance between them. Zip code data was obtained from http://federalgovernmentzipcodes.us/ and used to create a database using PostgresQL and Sequelize. Distance calculations use the haversine formula for calculating spherical distances (https://www.movable-type.co.uk/scripts/latlong.html).
Deployed link: https://zipcalculator.herokuapp.com/
This project was bootstrapped with Create React App.