Engineering
IP Subnet Calculator
Calculate network address, broadcast, host range, and more.
🌐
IP Subnet Calculator
IPv4 address
/0 to /32
Results
Formula & Methodology
Subnet Mask: CIDR → 32-bit mask
/24 = 255.255.255.0 (24 ones followed by 8 zeros)
Network Address: IP AND Subnet Mask
Broadcast: Network OR (NOT Subnet Mask)
Usable Hosts: 2^(32-CIDR) - 2
First Host: Network + 1
Last Host: Broadcast - 1
/24 = 255.255.255.0 (24 ones followed by 8 zeros)
Network Address: IP AND Subnet Mask
Broadcast: Network OR (NOT Subnet Mask)
Usable Hosts: 2^(32-CIDR) - 2
First Host: Network + 1
Last Host: Broadcast - 1
About IP Subnet Calculator
Our IP subnet calculator is an essential tool for network engineers, system administrators, and IT students. Enter an IPv4 address and CIDR notation to see all subnet details.
Related Calculators
⚡
Engineering
Ohm's Law Calculator
Calculate voltage, current, resistance, and power from any two values.
💡
Engineering
Electricity Bill Calculator
Calculate monthly electricity costs for all your appliances.
🏗️
Engineering
Concrete Calculator
Calculate cement, sand, and aggregate for any concrete mix.
🎨
Engineering
Paint & Tile Calculator
Calculate paint liters or tile count for any room.
🔴
Engineering
Resistor Color Code Calculator
Decode resistor color bands to find resistance value.