Build a simple "nearest office" finder
Geocode a visitor's address once and compare it against a short fixed list of office coordinates in your own code to find the closest match.
Tag
#distance
Add a distance-from-store calculator to a landing page
Let a visitor enter their address and see exactly how far your nearest location is, using one geocoding request and a distance formula in your own code.
Restrict form submissions to a delivery radius
Geocode a submitted delivery address and reject it automatically when it falls outside a fixed distance from your hub, before an order is ever placed.
Calculate distance between two geocoded points
Geocode two addresses to get their coordinates, then calculate the distance between them using standard great-circle math you already have in your own code.