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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.

UK South → UK West
7 ms
UK South → France Central
11 ms
UK South → West Europe
12 ms
UK South → North Europe
13 ms
UK South → Germany West Central
17 ms
UK South → Norway West
17 ms
UK South → Switzerland West
19 ms
UK South → France South
20 ms
UK South → Germany North
21 ms
UK South → Switzerland North
23 ms
UK South → Norway East
24 ms
UK South → Italy North
28 ms
UK South → Poland Central
29 ms
UK South → Sweden Central
37 ms
UK South → East US
79 ms
UK South → East US 2
83 ms
UK South → Canada Central
92 ms
UK South → Canada East
96 ms
UK South → North Central US
97 ms
UK South → South Central US
110 ms
UK South → Central US
111 ms
UK South → UAE Central
118 ms
UK South → West India
118 ms
UK South → UAE North
120 ms
UK South → West Central US
125 ms
UK South → Mexico Central
128 ms
UK South → Central India
129 ms
UK South → West US 3
133 ms
UK South → South India
135 ms
UK South → South Africa West
145 ms
UK South → West US 2
145 ms
UK South → West US
147 ms
UK South → Qatar Central
148 ms
UK South → Southeast Asia
155 ms
UK South → Malaysia West
159 ms
UK South → South Africa North
161 ms
UK South → Brazil South
180 ms
UK South → East Asia
187 ms
UK South → Israel Central
210 ms
UK South → Korea South
213 ms
UK South → Korea Central
218 ms
UK South → Japan West
222 ms
UK South → Japan East
231 ms
UK South → Australia Southeast
241 ms
UK South → Australia East
247 ms
UK South → Australia Central 2
250 ms
UK South → Australia Central
251 ms
UK South → New Zealand North
263 ms
UK South → Jio India West
N/A
UK South → UK South
N/A

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