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:

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 June 30th, 2025 , and it covers the 30-day period ending on June 29th, 2025 .

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 .

Important

Monthly latency numbers across Azure regions do not change on a regular basis. You can expect an update of these tables every 6 to 9 months. Not all public Azure regions are listed in the following tables. When new regions come online, we will update this document as soon as latency data is available.

You can perform VM-to-VM latency between regions using test Virtual Machines in your Azure subscription.

Latency tables for Australia, Asia, and Pacific regions including and Australia, Japan, Korea, and India.

Use the following tabs to view latency statistics for each region.

Latency tables for Middle East / Africa regions including UAE, South Africa, Israel, and Qatar.

Use the following tabs to view latency statistics for each region.

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

Source,Australia Central,Australia Central 2,Australia East,Australia Southeast,Brazil South,Canada Central,Canada East,Central India,Central US,East Asia,East US,East US 2,France Central,France South,Germany North,Germany West 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,Sweden Central,Switzerland North,Switzerland West,UAE Central,UAE North,UK South,UK West,West Central US,West Europe,West India,West US,West US 2,West US 3
Australia Central,,3,8,16,302,203,211,152,178,122,202,197,245,234,257,251,293,243,107,115,,129,123,102,183,32,188,260,270,267,266,186,273,293,167,131,98,293,245,241,173,176,251,256,166,254,144,147,166,150
Australia Central 2,4,,8,13,303,204,212,154,179,123,202,198,245,234,257,251,306,243,108,115,,129,123,102,183,32,188,260,270,267,266,185,273,293,167,130,98,294,245,241,173,176,251,256,166,254,144,147,167,151
Australia East,8,8,,16,299,201,208,152,176,123,199,193,241,230,254,247,289,239,104,111,,126,119,99,180,28,184,256,266,263,263,184,270,289,163,127,94,294,242,237,169,172,247,253,161,250,140,141,162,147
Australia Southeast,16,12,16,,311,213,221,144,188,119,212,207,236,225,248,241,291,233,114,121,,138,130,92,192,40,197,250,260,257,257,176,264,283,176,121,88,281,236,231,163,166,241,247,173,244,134,151,173,159
Brazil South,302,302,298,311,,131,134,331,151,321,119,118,190,186,194,195,239,194,271,278,,294,286,337,157,288,138,172,196,193,202,319,319,303,141,300,332,215,197,192,283,285,180,184,157,186,283,176,178,163
Canada Central,202,203,201,212,130,,14,244,28,211,21,23,99,96,106,106,153,105,159,166,,181,175,226,72,187,17,85,108,104,114,229,231,215,50,211,222,126,107,102,195,195,91,92,39,97,194,64,59,70
Canada East,212,212,210,221,135,15,,245,37,220,34,38,104,100,110,110,157,109,168,175,,190,183,235,83,196,26,87,112,109,118,233,241,224,58,215,231,126,111,107,198,200,96,97,48,101,198,71,68,76
Central India,153,154,153,145,329,244,244,,240,89,235,234,123,122,136,131,181,132,128,128,,126,122,57,256,191,237,139,160,158,156,46,205,223,247,22,56,202,134,132,41,40,129,142,244,145,5,228,221,244
Central US,177,177,175,187,150,27,36,239,,187,29,37,118,115,124,124,170,123,135,143,,157,152,202,47,162,15,102,126,124,133,249,245,229,29,231,198,142,125,119,213,215,111,112,18,115,214,41,39,47
East Asia,122,122,122,118,320,211,219,90,187,,216,216,182,170,193,187,224,179,53,50,,41,33,35,200,142,197,196,206,203,202,123,209,229,179,66,36,225,182,177,108,111,187,192,173,190,80,159,151,163
East US,200,200,198,211,117,20,32,234,28,214,,10,86,83,92,93,137,92,163,171,,185,179,226,54,183,19,70,95,91,101,212,217,200,36,198,222,111,94,89,182,183,78,80,50,83,181,71,68,59
East US 2,195,195,193,204,116,23,36,233,36,215,10,,84,87,96,90,133,95,167,171,,189,178,236,49,181,26,76,99,95,104,214,212,196,31,202,228,113,98,94,187,187,81,84,48,88,185,66,69,53
France Central,244,245,241,236,190,100,103,123,120,182,88,85,,15,18,12,53,21,214,217,,212,207,153,129,262,104,19,30,27,29,141,156,140,111,130,148,40,17,13,112,114,11,15,130,13,113,153,152,135
France South,234,234,230,225,186,96,100,122,116,171,84,89,15,,26,20,41,12,203,206,,201,196,143,132,258,101,29,38,36,37,117,154,138,117,118,139,48,14,10,102,103,20,25,130,23,102,153,150,137
Germany North,258,257,254,248,194,107,110,142,125,194,95,98,19,27,,11,64,22,240,229,,225,219,169,142,276,111,27,20,26,16,150,170,153,125,141,165,31,16,19,125,126,21,23,139,15,125,162,160,147
Germany West Central,250,250,247,241,195,106,109,130,124,187,94,92,12,19,10,,57,14,219,222,,217,212,161,138,272,110,26,22,25,22,143,162,146,119,134,157,34,9,12,118,119,17,22,136,12,117,159,158,142
Indonesia Central,110,110,107,100,343,235,243,68,212,49,238,243,165,154,177,170,199,162,85,82,87,77,72,21,234,131,221,179,189,186,,,193,211,216,50,17,,165,160,92,95,171,176,197,173,,183,176,200
Israel Central,291,306,288,291,239,154,155,179,171,224,139,135,52,41,63,57,,49,257,259,,269,266,207,191,314,157,78,83,78,72,154,198,187,172,176,184,94,51,53,143,151,210,211,182,66,151,204,212,197
Italy North,242,242,239,233,194,105,109,131,123,179,93,97,21,12,20,14,49,,211,214,,209,204,153,140,266,111,35,33,35,31,121,162,146,125,127,149,48,9,10,110,111,27,32,138,23,110,160,159,144
Japan East,107,107,103,114,270,159,167,126,136,53,164,166,214,202,239,219,257,211,,12,,29,20,76,149,127,145,232,247,234,249,163,249,268,129,106,73,277,213,209,148,151,230,234,121,234,119,107,100,113
Japan West,114,114,110,120,277,166,174,127,143,49,172,171,216,205,228,221,258,213,12,,,18,13,73,157,135,152,239,240,237,237,160,244,263,136,101,69,263,216,211,143,146,222,227,128,224,114,115,107,120
Jio India West,,,,,,,,,,,,,,,,,200,150,,,,,,76,282,212,,,,,166,,,,,,,,,,,,,,,,,,,
Korea Central,129,129,126,138,294,181,189,123,158,41,187,192,213,201,224,218,269,210,29,19,,,8,69,171,150,168,227,236,233,233,160,240,259,154,97,65,273,212,208,139,142,218,223,144,220,111,130,123,136
Korea South,123,123,119,130,286,175,183,123,152,33,180,180,207,195,219,212,267,204,21,14,,8,,64,164,144,162,221,231,228,227,156,235,254,145,92,59,260,207,202,134,137,212,218,137,215,105,124,116,129
Malaysia West,102,101,99,92,336,227,234,58,203,35,228,235,154,143,168,162,207,154,77,73,76,69,64,,225,122,212,170,180,177,,,178,197,208,35,9,,156,150,77,80,159,165,188,164,,175,167,191
Mexico Central,182,182,179,191,156,72,82,255,47,199,55,50,128,131,140,137,190,139,148,156,,170,162,224,,169,56,117,142,139,148,270,257,240,24,252,220,164,142,137,228,230,127,131,44,132,229,52,73,40
New Zealand North,31,31,28,40,286,187,195,192,162,142,185,182,262,256,276,271,316,266,127,134,211,150,143,122,169,,172,251,278,286,,,293,312,151,150,118,,269,265,192,195,262,263,147,267,,132,137,134
North Central US,187,187,184,196,138,18,26,237,15,197,20,26,104,101,110,110,156,111,145,152,,167,161,213,56,172,,89,112,111,119,237,234,218,41,218,208,130,112,107,200,202,96,100,27,102,201,51,47,58
North Europe,259,259,256,250,171,85,87,139,102,196,74,77,20,29,27,26,78,36,233,240,,227,221,170,118,248,89,,28,26,35,136,170,153,101,144,166,38,31,35,127,128,13,17,116,18,127,139,137,125
Norway East,269,269,266,260,196,109,111,159,126,206,97,101,31,38,20,23,83,34,248,241,,236,231,180,143,278,113,28,,10,28,159,182,165,125,153,176,17,28,31,137,138,24,28,140,23,136,163,161,148
Norway West,267,266,263,257,193,105,109,158,125,203,93,98,27,36,26,26,79,36,235,238,,234,228,178,141,286,112,26,10,,34,161,178,161,125,151,174,20,31,35,134,135,17,22,138,19,135,161,159,146
Poland Central,266,266,263,257,202,115,118,153,133,202,102,106,29,36,16,22,73,32,249,238,,233,228,177,150,285,121,35,28,34,,158,178,162,132,150,173,29,26,29,133,135,29,31,147,22,133,170,168,155
Qatar Central,186,184,184,175,317,230,233,47,250,123,215,215,141,116,149,142,154,121,163,161,,160,156,89,273,227,238,136,157,160,158,,190,210,257,56,94,173,131,124,16,20,146,152,260,147,36,267,255,264
South Africa North,273,272,269,263,319,231,240,205,248,209,218,213,156,154,169,162,198,162,249,245,,240,234,178,258,293,235,170,181,177,178,190,,20,239,146,180,197,164,160,105,102,161,163,257,164,129,274,277,263
South Africa West,292,292,289,283,303,216,224,223,230,229,202,198,140,138,153,146,182,146,269,264,,259,254,197,242,312,219,154,165,161,162,210,21,,224,166,199,180,148,144,124,122,145,147,240,148,149,256,261,247
South Central US,165,165,162,174,139,51,59,246,28,178,36,32,110,114,122,118,170,123,129,136,,153,144,207,24,150,40,100,124,122,131,255,239,222,,235,202,143,125,120,212,214,108,113,25,114,212,36,50,24
South India,131,130,127,121,300,212,215,23,232,67,200,204,130,118,141,135,177,127,106,102,,98,92,35,253,151,219,144,153,151,150,57,147,166,236,,38,188,129,125,46,49,135,137,217,138,17,203,196,220
Southeast Asia,97,97,94,88,332,222,230,56,199,36,224,231,148,138,164,157,184,149,73,69,,65,59,9,221,118,209,166,176,173,173,94,180,199,203,37,,201,152,147,79,82,155,161,184,160,50,171,163,187
Sweden Central,294,295,297,282,217,126,127,204,143,223,113,114,41,49,32,34,95,49,278,261,,270,259,204,165,310,132,34,16,21,31,175,199,180,144,187,202,,43,47,154,167,38,41,158,36,168,180,184,168
Switzerland North,245,245,241,236,196,108,111,133,127,182,96,100,17,14,16,9,51,9,214,217,,212,207,156,143,269,114,31,28,31,26,135,165,148,126,129,152,43,,7,112,114,23,28,141,18,112,163,162,146
Switzerland West,241,240,237,231,192,103,106,130,122,177,91,96,14,10,19,13,54,11,209,212,,208,202,150,139,264,108,35,31,34,30,124,161,144,123,125,147,46,7,,108,109,19,24,136,21,108,159,156,142
UAE Central,172,172,169,163,283,195,198,41,214,109,183,188,113,101,124,118,143,110,148,144,,139,134,77,229,193,201,127,136,134,133,16,105,124,214,45,79,155,113,108,,6,118,123,228,121,29,250,243,235
UAE North,175,175,172,166,284,196,200,39,216,112,184,189,114,102,126,119,151,111,152,147,,142,137,80,231,195,202,128,138,135,134,20,103,121,215,48,82,168,114,109,6,,119,125,229,122,32,252,249,236
UK South,251,250,247,241,180,92,96,129,111,187,79,83,11,20,21,17,210,28,231,222,,218,213,159,128,263,97,13,24,17,29,148,161,145,110,135,155,37,23,19,118,120,,7,125,12,118,147,145,133
UK West,256,255,252,246,183,93,97,142,112,192,81,85,15,25,22,22,212,32,234,227,,223,218,165,132,263,99,16,28,22,31,152,163,147,114,137,161,40,28,24,123,125,7,,127,15,120,150,149,135
West Central US,165,166,162,172,156,40,48,243,19,173,54,49,131,130,138,136,182,138,121,129,,144,137,189,45,148,28,116,140,138,147,261,257,240,27,217,184,157,140,136,229,230,125,127,,129,229,26,25,35
West Europe,254,254,251,245,186,98,101,146,116,191,85,90,15,24,14,13,67,24,235,226,,221,216,164,133,267,104,18,23,20,23,148,165,149,116,139,161,36,19,22,122,123,12,15,130,,122,153,151,139
West US,146,146,140,150,176,65,70,227,42,159,73,68,153,152,161,159,204,161,108,115,,130,124,175,53,133,51,138,163,160,170,267,273,255,36,203,171,179,163,159,250,252,147,150,26,153,216,,25,20
West US 2,166,166,161,172,177,60,68,220,40,152,69,70,153,146,159,159,208,159,100,108,,123,116,168,74,137,48,137,161,158,168,254,278,261,53,196,163,184,160,156,244,249,145,148,25,150,209,25,,41
West US 3,150,150,147,159,163,73,79,243,48,163,60,54,135,138,147,142,199,146,113,120,,136,128,190,41,133,59,124,148,145,154,264,263,247,25,219,187,168,147,142,235,236,133,134,35,138,232,20,41,
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Learn about Azure regions.