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Azure Speed Test

Azure Region to Region Latency

Round-trip latency measures the time for a data packet to travel from one Azure region to another and back. This metric is critical for real-time applications, gaming, and financial transactions where milliseconds matter.

Region-to-region latency lookup

Select a source region from the dropdown below to view round-trip latency to all other Azure regions. Results are sorted by latency from fastest to slowest.

Select a source region to view results
Pick a region from the dropdown above.

Historical latency snapshot

Azure network latency matrix showing round-trip times between regions, ranging from under 2ms within geography to over 200ms cross-continent, December 2020
Azure backbone latency matrix (December 2020 snapshot)

Visit the Azure Network Latency Documentation for the latest updates.

Additional resources

Azure network round trip latency statistics

Review the latest Microsoft-published tables that highlight average inter-region latency.

View latency statistics

Test VM network latency

Learn how to benchmark VM-to-VM latency using Azure tools and recommended configurations.

Benchmark VM latency

View relative latency to Azure regions

Leverage Azure Network Watcher to monitor edge-to-region latency from specific locations.

Network Watcher guide

Troubleshooting network performance

Follow a diagnostic checklist to resolve throughput or latency concerns on ExpressRoute.

ExpressRoute troubleshooting

Which cloud performs better, AWS, Azure or Google?

Explore an industry comparison of backbone design choices across major cloud providers.

Compare cloud providers

Round trip between Azure regions

Dive into the Learn article for architectural best practices and historical latency charts.

View best practices