Oracle Cloud (OCI) Subnet Calculator

Calculate IPv4 and IPv6 subnet boundaries using Oracle Cloud virtual cloud network (VCN) and bring your own IP (BYOIP) allocation rules. Apply service presets for Bastion, Load Balancer, Network Firewall, and Oracle Kubernetes Engine (OKE). Everything is calculated in your browser.

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Oracle Cloud (OCI) settings

Choose an allocation model and optional service preset. Rules are advisory; follow the linked documentation when provisioning.

Allocation model Service preset

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Oracle Cloud (OCI) Subnet Calculator

Oracle Cloud (OCI) settings

Subnet details

Accepted input formats

CIDR and addresses

Masks and host counts

Ranges and subdivisions