West US 3 Azure Region Latency
Compare Azure region-to-region latency to plan faster application paths and choose better deployment locations.
Compare Azure region latency
Choose a source region to compare round-trip times with other Azure regions. Results are sorted from fastest to slowest.
Latency from West US 3
46 routes compared
- Fastest route
- West US 18 ms
- Median latency
- 142 ms
- Slowest route
- South Africa North 262 ms
- Fast under 50 ms
- Moderate 50-99 ms
- Slow 100 ms or more
Bars use the same 0-342 ms scale for every source region.
Showing 46 of 46 routes
Frequently asked questions
Where does this region-to-region latency data come from?
The comparison uses Azure network round-trip latency statistics published on Microsoft Learn. Region pairs without a published numeric value are omitted. Published averages are a planning reference; application latency varies with workload, routing, network conditions, and VM configuration.
Azure network round-trip latency statisticsAdditional resources
Test VM network latency
Benchmark VM-to-VM latency using Azure tools and recommended configurations.
Benchmark VM latencyView relative latency to Azure regions
Use Azure Network Watcher to monitor edge-to-region latency from specific locations.
Network Watcher guide