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IPv4 Subnet Calculator

Enter an IP with a CIDR prefix or a subnet mask to see its network, broadcast, host range, and host count. You can also split the network into smaller subnets.

$ ipcalc
Try:192.168.1.10/2410.0.0.0/8172.16.5.4/20203.0.113.9/29
IPv6 calculator →
private IP (RFC 1918)10.0.0.0/14
network10.0.0.0/14
broadcast10.3.255.255
first host10.0.0.1
last host10.3.255.254
subnet mask255.252.0.0
wildcard0.3.255.255
addresses262,144
usable hosts262,142
classA
ipcalc 10.0.0.0/14
address00001010.00000000.00000000.00000000
subnet mask11111111.11111100.00000000.00000000
network00001010.00000000.00000000.00000000
broadcast00001010.00000011.11111111.11111111
green = network part, grey = host part
hex0x0a000000
decimal167772160
reverse dns0.0.0.10.in-addr.arpa
ipv4-mapped::ffff:a00:0

/14 split into /20 · 64 subnets

close ×
#networkhost rangebroadcast
110.0.0.0/2010.0.0.1 – 10.0.15.25410.0.15.255
210.0.16.0/2010.0.16.1 – 10.0.31.25410.0.31.255
310.0.32.0/2010.0.32.1 – 10.0.47.25410.0.47.255
410.0.48.0/2010.0.48.1 – 10.0.63.25410.0.63.255
510.0.64.0/2010.0.64.1 – 10.0.79.25410.0.79.255
610.0.80.0/2010.0.80.1 – 10.0.95.25410.0.95.255
710.0.96.0/2010.0.96.1 – 10.0.111.25410.0.111.255
810.0.112.0/2010.0.112.1 – 10.0.127.25410.0.127.255
910.0.128.0/2010.0.128.1 – 10.0.143.25410.0.143.255
1010.0.144.0/2010.0.144.1 – 10.0.159.25410.0.159.255
1110.0.160.0/2010.0.160.1 – 10.0.175.25410.0.175.255
1210.0.176.0/2010.0.176.1 – 10.0.191.25410.0.191.255
1310.0.192.0/2010.0.192.1 – 10.0.207.25410.0.207.255
1410.0.208.0/2010.0.208.1 – 10.0.223.25410.0.223.255
1510.0.224.0/2010.0.224.1 – 10.0.239.25410.0.239.255
1610.0.240.0/2010.0.240.1 – 10.0.255.25410.0.255.255
1710.1.0.0/2010.1.0.1 – 10.1.15.25410.1.15.255
1810.1.16.0/2010.1.16.1 – 10.1.31.25410.1.31.255
1910.1.32.0/2010.1.32.1 – 10.1.47.25410.1.47.255
2010.1.48.0/2010.1.48.1 – 10.1.63.25410.1.63.255
2110.1.64.0/2010.1.64.1 – 10.1.79.25410.1.79.255
2210.1.80.0/2010.1.80.1 – 10.1.95.25410.1.95.255
2310.1.96.0/2010.1.96.1 – 10.1.111.25410.1.111.255
2410.1.112.0/2010.1.112.1 – 10.1.127.25410.1.127.255
2510.1.128.0/2010.1.128.1 – 10.1.143.25410.1.143.255
2610.1.144.0/2010.1.144.1 – 10.1.159.25410.1.159.255
2710.1.160.0/2010.1.160.1 – 10.1.175.25410.1.175.255
2810.1.176.0/2010.1.176.1 – 10.1.191.25410.1.191.255
2910.1.192.0/2010.1.192.1 – 10.1.207.25410.1.207.255
3010.1.208.0/2010.1.208.1 – 10.1.223.25410.1.223.255
3110.1.224.0/2010.1.224.1 – 10.1.239.25410.1.239.255
3210.1.240.0/2010.1.240.1 – 10.1.255.25410.1.255.255
3310.2.0.0/2010.2.0.1 – 10.2.15.25410.2.15.255
3410.2.16.0/2010.2.16.1 – 10.2.31.25410.2.31.255
3510.2.32.0/2010.2.32.1 – 10.2.47.25410.2.47.255
3610.2.48.0/2010.2.48.1 – 10.2.63.25410.2.63.255
3710.2.64.0/2010.2.64.1 – 10.2.79.25410.2.79.255
3810.2.80.0/2010.2.80.1 – 10.2.95.25410.2.95.255
3910.2.96.0/2010.2.96.1 – 10.2.111.25410.2.111.255
4010.2.112.0/2010.2.112.1 – 10.2.127.25410.2.127.255
4110.2.128.0/2010.2.128.1 – 10.2.143.25410.2.143.255
4210.2.144.0/2010.2.144.1 – 10.2.159.25410.2.159.255
4310.2.160.0/2010.2.160.1 – 10.2.175.25410.2.175.255
4410.2.176.0/2010.2.176.1 – 10.2.191.25410.2.191.255
4510.2.192.0/2010.2.192.1 – 10.2.207.25410.2.207.255
4610.2.208.0/2010.2.208.1 – 10.2.223.25410.2.223.255
4710.2.224.0/2010.2.224.1 – 10.2.239.25410.2.239.255
4810.2.240.0/2010.2.240.1 – 10.2.255.25410.2.255.255
4910.3.0.0/2010.3.0.1 – 10.3.15.25410.3.15.255
5010.3.16.0/2010.3.16.1 – 10.3.31.25410.3.31.255
5110.3.32.0/2010.3.32.1 – 10.3.47.25410.3.47.255
5210.3.48.0/2010.3.48.1 – 10.3.63.25410.3.63.255
5310.3.64.0/2010.3.64.1 – 10.3.79.25410.3.79.255
5410.3.80.0/2010.3.80.1 – 10.3.95.25410.3.95.255
5510.3.96.0/2010.3.96.1 – 10.3.111.25410.3.111.255
5610.3.112.0/2010.3.112.1 – 10.3.127.25410.3.127.255
5710.3.128.0/2010.3.128.1 – 10.3.143.25410.3.143.255
5810.3.144.0/2010.3.144.1 – 10.3.159.25410.3.159.255
5910.3.160.0/2010.3.160.1 – 10.3.175.25410.3.175.255
6010.3.176.0/2010.3.176.1 – 10.3.191.25410.3.191.255
6110.3.192.0/2010.3.192.1 – 10.3.207.25410.3.207.255
6210.3.208.0/2010.3.208.1 – 10.3.223.25410.3.223.255
6310.3.224.0/2010.3.224.1 – 10.3.239.25410.3.239.255
6410.3.240.0/2010.3.240.1 – 10.3.255.25410.3.255.255
01 / table

IPv4 CIDR prefix table.

Click a prefix longer than your network to split it into subnets.

prefixsubnet maskaddresseshostsin your /14
/00.0.0.04,294,967,2964,294,967,294-
/1128.0.0.02,147,483,6482,147,483,646-
/2192.0.0.01,073,741,8241,073,741,822-
/3224.0.0.0536,870,912536,870,910-
/4240.0.0.0268,435,456268,435,454-
/5248.0.0.0134,217,728134,217,726-
/6252.0.0.067,108,86467,108,862-
/7254.0.0.033,554,43233,554,430-
/8255.0.0.016,777,21616,777,214-
/9255.128.0.08,388,6088,388,606-
/10255.192.0.04,194,3044,194,302-
/11255.224.0.02,097,1522,097,150-
/12255.240.0.01,048,5761,048,574-
/13255.248.0.0524,288524,286-
/14255.252.0.0262,144262,1421
/15255.254.0.0131,072131,0702 split →
/16255.255.0.065,53665,5344 split →
/17255.255.128.032,76832,7668 split →
/18255.255.192.016,38416,38216 split →
/19255.255.224.08,1928,19032 split →
/20255.255.240.04,0964,09464 split →
/21255.255.248.02,0482,046128 split →
/22255.255.252.01,0241,022256 split →
/23255.255.254.0512510512 split →
/24255.255.255.02562541,024 split →
/25255.255.255.1281281262,048 split →
/26255.255.255.19264624,096 split →
/27255.255.255.22432308,192 split →
/28255.255.255.240161416,384 split →
/29255.255.255.2488632,768 split →
/30255.255.255.2524265,536 split →
/31255.255.255.25422131,072 split →
/32255.255.255.25511262,144 split →
02 / faq

About this calculator.

How do I use this subnet calculator?

▼

Type an IP address followed by a prefix, like 192.168.1.10/24, or by a subnet mask, like 192.168.1.10 255.255.255.0. Without a prefix it uses /24. Click a row in the table to split the network into smaller subnets.

Why are usable hosts always 2 fewer?

▼

The first address in a subnet is the network address and the last is the broadcast address, so neither can go to a device. The exceptions are /31 (point-to-point links, RFC 3021) and /32 (a single address), which use every address.

Can I use it from a terminal?

▼

Yes. curl 'ipku.in/en/tools/ipv4-subnet-calculator?q=192.168.1.10/24' returns the result as plain text.

Learn how to work it out →