IP Address Planning Calculator
Answer questions about your site count, device count, and growth expectations to get tailored subnetting and addressing guidance. No account access required.
IP Address Planning Calculator
Work through each section at your own pace. Results are shown immediately — no email required.
Infrastructure & Networking Tool
IP Address Planning Calculator
Answer questions about your site count, device count per site, and growth expectations to get tailored subnetting and addressing guidance.
FAQ
Common Questions
What subnet size should I use for a small office?
For a single site with fewer than 50 devices, a /25 or /26 subnet per VLAN segment is typically sufficient while conserving address space. For sites in the 50-250 device range, a /24 per segment is a common, safer default. This tool tailors the specific recommendation to your site count and device counts.
Why does growth matter for IP address planning?
Subnets sized exactly to current device counts run out of headroom quickly once IoT devices, guest access, or headcount growth are added. Planning for 1-3 years of anticipated growth up front avoids a disruptive re-addressing project later.
Operational Support
Need help designing your addressing plan?
IT KORR can help you build a documented, conflict-free addressing standard across every site.
No commitment required — we respond within one business day.