AWS VPC Subnet Calculator

Building a multi-VPC architecture and planning subnet CIDR allocations? Our cloud network sorcerer has you covered! This clutter-free calculator is specifically designed for AWS, simplifying VPC and subnet management.

Usage example 1
You have an IPv4 network range (172.31.0.0/16) and want to calculate how many VPCs with a CIDR of /24 you can create.
–> Insert 172.31.0.0/16 into first field and 24 into second field.

Usage example 2
You have a VPC network range (172.31.0.0/24) and you want to calculate variably sized subnets across 3 availability zones.
–> Insert 172.31.0.0/24 into first field and 26,26,26,28,28,28 into second field.