Salt Lake City. How long a round trip from your machine to this region takes — and how much of that distance alone demands.
| Cloud | Google Cloud |
|---|---|
| Region code | us-west3 |
| Region name | Salt Lake City |
| Datacentre city | Salt Lake City, Utah, US |
| Coordinates | 40.76, -111.89 |
| Published IPv4 prefixes | 14 |
| Probe endpoint | https://storage.us-west3.rep.googleapis.com/ |
| Probe style | timed blind — the endpoint sends no CORS headers |
| Verification | Probed on this region’s dedicated regional storage endpoint — one address per region, no wildcard DNS — with identity confirmed by a single gcping call per sweep. The recorded range-check predates this endpoint and covered an earlier host. Checked 2026-08-21. |
Coordinates are the real datacentre city rather than the marketing region name, because they feed the distance maths below.
Light in fibre covers about 100 km per millisecond of round trip. These are the great-circle distances to Salt Lake City, Utah and the latency no network can beat — not a measurement, a limit. What you actually measure is this plus routing.
| From | Distance | Floor |
|---|---|---|
| New York | 3,166 km | 32 ms |
| Los Angeles | 933 km | 9.3 ms |
| São Paulo | 9,818 km | 98 ms |
| London | 7,823 km | 78 ms |
| Frankfurt | 8,372 km | 84 ms |
| Johannesburg | 16,006 km | 160 ms |
| Dubai | 12,562 km | 126 ms |
| Mumbai | 13,343 km | 133 ms |
| Singapore | 14,103 km | 141 ms |
| Tokyo | 8,816 km | 88 ms |
| Sydney | 12,906 km | 129 ms |
Within 75 km of Salt Lake City, Utah — near enough that distance sets no meaningful floor between them. When several sit in one city, the fastest is the city’s real floor; a slower neighbour is usually the endpoint’s own server time.
These figures are geometry. Your own round trip to us-west3 depends on your connection and the route it takes — open the instrument, pick GCP, and sweep. Every region is timed from your browser against the endpoint listed above, and the result is split into the part physics demands and the part the network added.
See every GCP region on the GCP latency page.