Subnet for 14 hosts

A network that needs 14 hosts fits in a /28, mask 255.255.255.240, with 14 usable addresses.

14
Hosts needed
/28
Smallest fitting prefix
255.255.255.240
Subnet mask
14
Usable hosts

A network built for exactly 14 hosts fits a /28 with no waste. The mask is 255.255.255.240, and all 14 of its usable addresses are spoken for.

Go one prefix smaller, to a /29, and the block only holds 6 usable addresses, not enough room for 14 hosts. A /28 is the smallest standard block that fits.

Enter any address below to see the exact network, broadcast, and host range for a /28 block.

Calculate a /28 network

Accepts CIDR (192.0.2.0/24), IP + mask (192.0.2.0 255.255.255.0), or a bare IP (defaults to /24).

Network address192.0.2.0
Usable host range192.0.2.1 - 192.0.2.14
Broadcast address192.0.2.15
Usable hosts14
Subnet mask255.255.255.240
Wildcard mask0.0.0.15
CIDR notation192.0.2.0/28
Total addresses16
IP (binary)11000000.00000000.00000010.00000000
Mask (binary)11111111.11111111.11111111.11110000
Try:

Example: 192.0.2.0/28

Taking 192.0.2.0/28 as a worked example, a /28 block breaks down like this:

Network address192.0.2.0
Usable range192.0.2.1 - 192.0.2.14
Broadcast address192.0.2.15
Total addresses16
Usable hosts14

Frequently asked questions

What subnet mask do I need for 14 hosts?

A network with 14 hosts fits in a /28, which uses the mask 255.255.255.240 and provides 14 usable addresses.

How many addresses does a /28 block have in total?

A /28 has 16 total addresses, 14 of them usable (the total minus the network and broadcast addresses, except for /31 and /32).

Is there a smaller subnet that still fits 14 hosts?

No. A /28 has exactly 14 usable addresses, which makes it the smallest standard block that fits 14 hosts without going over.

How do I work this out myself?

Find the smallest power of two, minus two, that is at least 14. That takes 4 host bits, which leaves a /28 prefix. See how to calculate a subnet mask for the full method.