Azure network round-trip latency statistics

This article provides round-trip latency statistics between Azure regions to help you optimize your cloud architecture and deployment decisions. The data comes from continuous network monitoring across Azure's global infrastructure and represents real-world performance measurements.

Use these statistics to:

• Plan multi-region deployments for optimal performance
• Select regions that minimize latency for your users
• Design disaster recovery strategies with latency considerations
• Benchmark expected performance between specific region pairs

What is round-trip latency?

Round-trip latency is the time it takes for a data packet to travel from one point in the network to another and back again. In the context of Azure, it measures the time taken for a packet to travel between two Azure regions. This metric is crucial for applications that require low-latency communication, such as real-time data processing, gaming, and financial transactions.

How is latency measured?

Azure measures round-trip latency using internal network probes that continuously monitor the performance of the Azure backbone network. These probes send data packets between Azure regions and record the time taken for the packets to travel to their destination and back. The measurements are collected in 1-minute intervals, providing a detailed view of network performance over time.

The latency statistics presented in this article are based on the 50th percentile (P50) of these measurements, which represents the median round-trip time. This means that half of the measured round-trip times are below this value, providing a reliable indicator of typical network performance.

Round-trip latency data by region

The monthly Percentile P50 round trip times between Azure regions for a 30-day window are shown in the following tabs. The latency is measured in milliseconds (ms).

The current dataset was taken on July 30, 2026, and it covers the 30-day period ending on July 30, 2026.

For readability, each table is split into tabs for groups of Azure regions. The tabs are organized by regions, and then by source region in the first column of each table. For example, the East US tab also shows the latency from all source regions to the two East US regions: East US and East US 2.

Each latency value is directional. The latency from one region to another can differ from the latency in the reverse direction, because traffic might take a different network path each way. When you compare regions, use the value that matches the direction your traffic flows.

Additionally, you can view all of the data in a single CSV table:

Source,Australia Central,Australia Central 2,Australia East,Australia Southeast,Austria East,Belgium Central,Brazil South,Canada Central,Canada East,Central India,Central US,Denmark East,East Asia,East US,East US 2,France Central,France South,Germany North,Germany West Central,Indonesia Central,Israel Central,Italy North,Japan East,Japan West,Jio India West,Korea Central,Korea South,Malaysia West,Mexico Central,New Zealand North,North Central US,North Europe,Norway East,Norway West,Poland Central,Qatar Central,South Africa North,South Africa West,South Central US,South India,Southeast Asia,Spain Central,Sweden Central,Switzerland North,Switzerland West,UAE Central,UAE North,UK South,UK West,West Central US,West Europe,West US,West US 2,West US 3
Australia Central,,3,8,13,259,250,299,202,215,147,179,263,122,201,195,246,235,257,251,110,273,248,109,113,167,130,122,102,182,32,192,260,269,267,268,181,271,287,166,130,98,249,274,245,242,173,172,251,256,167,254,145,167,149
Australia Central 2,4,,9,13,258,250,299,203,216,148,180,262,124,201,195,245,234,257,250,109,272,249,108,113,167,129,122,102,182,32,192,261,268,266,268,181,271,287,166,130,98,249,274,245,241,172,171,249,254,167,253,146,167,150
Australia East,8,8,,15,269,263,295,202,214,144,176,271,121,202,196,256,235,271,267,107,269,262,104,110,163,127,124,99,178,28,187,263,279,264,278,179,328,328,162,128,95,253,286,261,260,170,172,261,263,162,264,140,161,146
Australia Southeast,13,12,15,,249,240,307,213,225,138,186,263,121,213,207,256,224,267,255,100,263,251,114,120,158,138,135,93,190,40,198,264,260,256,277,173,321,320,174,121,88,255,283,246,232,163,165,261,262,173,263,150,172,158
Austria East,258,256,261,247,,20,204,109,105,132,129,26,194,104,105,21,25,18,14,175,46,16,245,232,143,229,222,167,149,282,118,36,32,35,16,94,174,159,134,147,174,36,36,17,19,103,104,28,32,144,22,164,164,153
Belgium Central,250,249,261,241,21,,194,95,91,135,118,20,187,91,88,9,18,18,11,168,62,20,234,224,142,222,214,161,135,271,108,21,27,21,26,87,162,145,118,140,167,24,33,15,17,95,97,14,18,132,8,150,152,140
Brazil South,299,299,295,307,205,194,,129,128,304,149,189,307,118,117,191,186,195,198,344,223,201,262,269,306,283,277,336,156,284,137,172,196,194,203,253,321,304,139,322,331,183,201,198,194,273,277,181,185,157,185,169,177,157
Canada Central,202,202,202,213,109,94,129,,13,201,29,95,201,18,22,89,86,100,97,234,124,100,161,167,206,182,176,226,71,186,19,76,101,94,108,154,230,213,54,221,223,91,109,98,93,163,175,81,83,46,90,69,64,70
Canada East,215,216,215,225,106,91,128,13,,199,40,91,210,26,29,86,82,96,94,238,121,96,170,176,204,193,185,231,74,197,29,73,98,91,104,151,227,210,60,214,231,87,105,93,89,161,171,77,79,56,86,76,74,80
Central India,147,148,145,138,133,140,303,201,198,,220,138,87,201,204,135,118,135,140,67,150,134,122,123,29,121,114,59,253,171,218,146,154,148,147,43,131,147,234,20,53,135,164,119,115,33,32,141,141,234,139,217,211,231
Central US,180,180,176,186,127,117,149,29,41,223,,114,176,29,33,116,109,118,119,209,145,123,136,142,266,158,154,202,45,163,15,101,120,117,125,177,244,228,26,228,198,105,126,123,118,194,192,109,112,17,110,39,39,44
Denmark East,262,260,264,251,25,19,188,95,89,136,115,,197,88,92,24,30,12,15,180,68,25,244,236,147,233,226,172,134,268,102,20,13,17,20,98,178,159,119,151,169,38,20,21,23,106,108,21,22,127,14,149,148,139
East Asia,123,123,122,120,194,186,306,200,210,88,176,199,,204,205,194,170,194,193,47,209,186,49,48,105,39,33,35,189,143,188,212,208,202,204,122,211,227,173,70,36,185,220,182,178,114,113,200,196,162,203,148,141,156
East US,200,200,201,212,103,90,117,18,25,198,28,89,203,,8,88,84,93,94,236,121,97,162,168,212,184,179,228,52,183,19,71,95,91,101,154,219,202,35,216,224,81,101,98,90,171,174,78,80,52,83,69,71,58
East US 2,194,195,196,207,107,89,118,21,29,204,33,94,204,9,,84,90,98,94,240,125,101,161,167,218,188,177,232,47,179,25,77,100,96,108,158,216,198,31,226,228,76,107,98,96,188,190,82,83,48,89,66,69,53
France Central,246,244,255,255,21,9,190,89,85,134,116,23,193,87,83,,14,18,12,164,53,21,229,231,138,239,232,165,127,261,104,19,30,25,31,83,159,142,112,148,162,19,37,16,13,100,113,10,13,129,13,145,149,131
France South,235,234,235,224,26,19,186,86,82,118,109,32,171,85,89,15,,26,20,153,41,17,223,209,120,205,199,145,132,257,100,29,38,34,37,72,158,141,119,133,145,18,44,13,10,81,94,20,23,127,23,146,148,139
Germany North,257,257,270,269,19,17,195,100,96,136,119,13,194,94,97,19,26,,12,186,59,21,240,243,143,249,222,169,140,274,109,27,20,25,16,95,172,155,125,150,174,33,25,16,19,104,115,21,22,134,14,154,152,147
Germany West Central,251,249,266,255,14,10,197,97,93,139,119,16,192,94,93,12,19,11,,169,55,14,235,236,141,244,216,162,139,273,110,26,22,27,23,88,165,148,122,154,166,26,28,9,12,97,118,16,20,135,11,151,154,142
Indonesia Central,110,109,108,100,176,168,345,234,237,68,210,185,47,237,240,165,153,186,171,,191,178,85,85,86,80,75,21,230,132,222,190,188,184,198,106,196,212,214,50,17,178,204,164,160,95,96,182,186,196,172,182,175,197
Israel Central,273,272,269,264,48,62,224,124,120,151,146,67,209,123,126,54,42,60,57,192,,49,247,247,159,242,237,183,169,294,137,78,74,78,58,109,195,179,153,159,179,56,79,52,55,119,121,59,60,160,63,183,181,170
Italy North,249,248,261,249,15,19,200,101,96,132,124,29,186,98,101,23,17,20,14,177,49,,238,238,136,234,215,169,146,272,113,37,33,37,26,85,174,157,134,139,167,34,37,9,12,95,106,28,32,140,23,161,161,152
Japan East,107,107,103,114,244,232,262,160,169,122,135,240,49,162,165,231,221,240,236,84,246,237,,11,142,29,21,76,145,128,147,227,248,247,250,162,251,268,129,105,72,224,253,235,231,150,152,230,235,121,234,107,100,112
Japan West,113,113,109,120,233,224,268,167,176,122,142,242,47,168,167,231,209,242,236,85,247,238,12,,142,19,13,76,151,134,154,233,248,240,252,157,246,263,134,106,72,227,255,233,216,149,149,232,237,128,236,114,107,118
Jio India West,167,166,163,158,142,142,306,208,204,29,265,147,103,212,215,138,121,144,142,86,159,138,143,142,,137,132,78,269,187,228,158,159,153,156,67,147,163,268,41,73,139,167,131,128,48,47,148,146,250,145,237,231,253
Korea Central,128,127,126,137,240,223,284,182,192,119,157,250,39,185,188,234,204,245,235,80,242,234,30,19,137,,8,69,165,150,170,239,256,236,252,157,246,262,154,100,68,239,260,228,224,147,147,239,243,144,241,130,124,136
Korea South,122,122,124,135,223,214,277,176,185,114,153,227,33,182,177,233,199,222,217,75,237,214,22,14,133,9,,63,160,142,164,234,233,231,232,147,236,253,145,96,65,213,252,209,206,138,143,234,221,138,237,127,122,133
Malaysia West,102,102,100,92,169,161,336,226,231,59,201,183,35,229,232,167,145,168,162,21,183,170,77,77,78,69,63,,223,124,214,181,180,177,189,97,187,203,206,41,9,170,196,156,152,87,87,173,177,188,166,174,167,189
Mexico Central,182,182,178,190,150,134,156,71,76,251,45,135,189,53,48,128,132,140,140,230,169,147,145,151,269,166,159,222,,166,58,118,142,140,149,199,259,241,22,249,218,120,147,142,138,207,210,126,130,44,132,52,72,39
New Zealand North,32,32,28,40,280,269,285,186,195,171,162,272,143,188,180,264,256,276,275,131,293,273,128,134,188,150,142,124,166,,175,253,279,272,285,206,296,312,152,152,119,250,285,267,264,197,197,266,269,152,266,138,137,134
North Central US,190,189,186,197,117,106,139,19,28,215,14,103,188,20,23,106,100,111,110,222,138,113,148,154,226,169,163,213,57,173,,90,113,109,117,168,233,216,38,239,209,95,119,113,107,187,189,97,100,30,101,51,51,57
North Europe,261,260,263,264,36,22,172,77,73,147,101,21,215,73,76,20,29,27,27,190,77,37,225,233,159,239,234,181,118,253,89,,28,26,35,98,172,155,104,162,176,33,35,31,34,114,128,13,16,111,17,133,130,126
Norway East,269,268,279,260,33,26,196,101,97,154,121,14,209,96,100,30,37,20,23,188,73,33,247,248,161,256,233,180,141,276,111,28,,10,28,106,185,167,127,163,185,45,13,28,31,115,118,24,28,135,22,156,153,149
Norway West,267,266,267,256,37,21,194,95,91,145,121,19,202,92,96,26,34,25,27,185,77,36,249,241,153,237,230,177,140,273,109,26,10,,33,103,179,162,124,157,173,40,17,31,34,112,119,17,22,133,21,154,153,144
Poland Central,268,268,278,273,17,27,203,108,104,152,125,21,205,102,108,32,37,16,23,197,57,27,249,252,154,258,232,189,148,285,115,35,28,33,,105,186,168,135,159,184,47,25,27,30,113,119,29,30,142,22,161,160,154
Qatar Central,185,185,182,177,95,87,253,154,150,43,178,100,123,154,157,83,71,94,88,105,109,85,162,161,66,157,151,96,199,206,168,97,106,103,105,,113,129,183,60,92,86,111,82,78,13,15,88,93,196,90,215,216,201
South Africa North,271,270,328,321,176,163,321,230,226,131,243,179,210,220,216,159,158,172,166,190,196,173,247,246,145,242,236,182,260,291,234,172,185,180,185,113,,20,244,147,177,143,189,168,164,104,103,163,166,258,166,273,280,264
South Africa West,288,287,328,320,160,146,305,214,210,147,227,161,226,203,198,142,141,155,149,207,179,156,264,264,162,260,253,199,242,308,217,155,167,163,168,129,21,,228,164,196,126,172,151,148,121,119,147,149,242,149,256,263,246
South Central US,166,166,162,173,132,116,139,53,60,232,26,120,173,36,31,113,120,125,124,214,154,133,129,135,267,154,149,206,22,151,38,105,128,124,135,183,244,228,,233,202,103,137,130,127,206,214,113,115,27,117,35,52,23
South India,130,130,128,121,149,134,319,218,211,19,228,147,68,220,221,147,129,148,151,49,162,140,106,106,41,100,95,41,249,151,240,159,160,157,158,60,150,166,233,,37,142,171,136,139,52,50,150,153,215,152,201,194,215
Southeast Asia,98,97,95,88,173,166,330,222,231,53,197,178,36,224,228,162,142,173,167,16,179,165,72,72,73,68,65,8,217,119,210,176,185,173,184,92,177,194,200,37,,165,191,160,157,81,83,167,172,183,169,170,163,183
Spain Central,249,248,255,252,37,24,183,91,87,132,105,39,186,81,76,20,18,33,27,179,56,33,226,227,140,234,213,170,120,255,96,33,45,40,47,86,142,126,104,140,166,,51,28,24,94,96,25,27,121,28,134,142,126
Sweden Central,275,274,285,277,36,33,201,106,104,157,129,21,219,100,105,36,43,24,27,202,77,38,253,254,167,260,241,195,147,285,121,33,12,16,26,111,186,170,135,170,190,50,,31,34,118,122,31,36,141,27,160,159,157
Switzerland North,245,244,255,245,17,15,197,98,93,118,124,21,183,98,99,17,13,16,10,164,51,9,235,222,131,228,209,155,142,267,114,31,28,31,27,82,168,151,130,136,162,28,33,,7,90,92,23,29,138,17,157,156,149
Switzerland West,241,240,251,232,20,17,192,94,89,115,118,25,178,91,95,14,10,19,13,160,53,12,232,216,128,225,205,152,138,264,108,31,31,33,29,78,165,148,127,138,159,24,36,7,,86,90,19,24,133,20,152,152,142
UAE Central,177,177,173,166,103,96,264,163,159,34,190,108,115,172,179,92,80,103,97,95,118,95,151,151,48,147,144,87,208,197,188,106,115,112,114,13,105,121,207,52,82,95,120,90,87,,6,97,102,217,99,231,236,228
UAE North,176,176,173,167,106,97,275,175,167,32,190,110,113,176,189,114,93,106,100,96,119,107,151,151,47,147,142,87,210,197,190,121,117,117,116,15,103,119,214,50,83,97,122,92,91,6,,112,119,231,111,236,241,232
UK South,251,249,261,261,28,14,180,81,77,141,108,22,200,78,82,11,20,21,17,180,60,27,229,232,149,240,233,171,126,266,97,12,24,17,29,88,164,146,112,152,167,25,31,23,19,101,119,,7,120,11,140,139,131
UK West,256,254,264,262,34,17,185,83,79,141,112,24,198,81,84,14,23,22,21,185,61,33,233,237,144,244,221,177,130,269,100,16,29,22,31,94,167,149,114,156,172,27,36,29,24,110,123,8,,124,14,143,144,133
West Central US,168,167,162,172,144,132,157,46,56,234,17,129,162,52,48,129,126,134,136,196,161,140,122,128,242,145,138,188,44,153,30,111,135,131,141,195,259,242,27,215,184,120,140,138,132,216,229,120,124,,124,25,25,34
West Europe,253,251,265,262,23,8,185,90,86,140,108,15,201,85,89,13,22,14,11,171,63,22,233,236,149,243,237,169,131,263,100,17,22,21,23,90,166,149,118,153,169,27,26,17,20,98,111,11,14,125,,146,143,138
West US,145,146,140,150,164,147,169,69,76,218,39,150,148,67,66,146,145,154,152,182,183,159,108,115,238,131,127,174,52,139,52,133,156,153,161,213,273,256,35,201,170,134,162,156,152,231,234,140,143,26,145,,25,19
West US 2,166,167,161,172,163,152,177,64,74,210,38,146,141,73,68,149,148,151,155,175,181,158,101,107,230,124,121,166,71,137,51,129,153,151,160,214,279,262,56,194,162,141,158,155,150,234,240,139,144,25,142,24,,40
West US 3,149,149,146,157,151,136,157,70,79,231,43,141,156,57,52,130,139,146,142,196,171,150,112,118,253,136,132,187,39,134,53,125,149,141,155,200,263,245,22,214,183,123,158,146,140,239,243,132,132,34,137,19,40,

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