M365 Bandwidth Calculator

Deployment Parameters

Configure your Microsoft 365 deployment to generate a network bandwidth assessment report.

Organization Info

User Configuration

Total M365 licensed accounts in your tenant.

60%
10% Off-peak60% Typical100% All

% of users simultaneously active during peak hours.

M365 Services

Select deployed services. Bandwidth values are from Microsoft's official documentation.

Microsoft Teams

Meetings, calls, chat, screen sharing

Include

Teams Usage Profile — per concurrent user

★ Recommended for most enterprise deployments. Source: Microsoft Learn — Prepare your network for Teams

Exchange Online

50 Kbps/user · Email & Calendar

SharePoint Online

0.15 Mbps/user · Sites & Docs

OneDrive for Business

0.25 Mbps/user · File sync

Microsoft 365 Apps

0.05 Mbps/user · Updates avg

Microsoft Intune

0.02 Mbps/user · MDM/MAM

Microsoft Defender

0.02 Mbps/user · Security telemetry

Network Settings

20%
0% No buffer20% Recommended50%

Safety buffer above calculated bandwidth. Microsoft recommends 20–30%.

Direct breakout is Microsoft's preferred architecture for M365 traffic.