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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)10.76.0.0/14
network10.76.0.0/14
broadcast10.79.255.255
first host10.76.0.1
last host10.79.255.254
subnet mask255.252.0.0
wildcard0.3.255.255
addresses262,144
usable hosts262,142
classA
ipcalc 10.76.0.0/14
address00001010.01001100.00000000.00000000
subnet mask11111111.11111100.00000000.00000000
network00001010.01001100.00000000.00000000
broadcast00001010.01001111.11111111.11111111
green = network part, grey = host part
hex0x0a4c0000
decimal172752896
reverse dns0.0.76.10.in-addr.arpa
ipv4-mapped::ffff:a4c:0

/14 split into /20 · 64 subnets

close ×
#networkhost rangebroadcast
110.76.0.0/2010.76.0.1 – 10.76.15.25410.76.15.255
210.76.16.0/2010.76.16.1 – 10.76.31.25410.76.31.255
310.76.32.0/2010.76.32.1 – 10.76.47.25410.76.47.255
410.76.48.0/2010.76.48.1 – 10.76.63.25410.76.63.255
510.76.64.0/2010.76.64.1 – 10.76.79.25410.76.79.255
610.76.80.0/2010.76.80.1 – 10.76.95.25410.76.95.255
710.76.96.0/2010.76.96.1 – 10.76.111.25410.76.111.255
810.76.112.0/2010.76.112.1 – 10.76.127.25410.76.127.255
910.76.128.0/2010.76.128.1 – 10.76.143.25410.76.143.255
1010.76.144.0/2010.76.144.1 – 10.76.159.25410.76.159.255
1110.76.160.0/2010.76.160.1 – 10.76.175.25410.76.175.255
1210.76.176.0/2010.76.176.1 – 10.76.191.25410.76.191.255
1310.76.192.0/2010.76.192.1 – 10.76.207.25410.76.207.255
1410.76.208.0/2010.76.208.1 – 10.76.223.25410.76.223.255
1510.76.224.0/2010.76.224.1 – 10.76.239.25410.76.239.255
1610.76.240.0/2010.76.240.1 – 10.76.255.25410.76.255.255
1710.77.0.0/2010.77.0.1 – 10.77.15.25410.77.15.255
1810.77.16.0/2010.77.16.1 – 10.77.31.25410.77.31.255
1910.77.32.0/2010.77.32.1 – 10.77.47.25410.77.47.255
2010.77.48.0/2010.77.48.1 – 10.77.63.25410.77.63.255
2110.77.64.0/2010.77.64.1 – 10.77.79.25410.77.79.255
2210.77.80.0/2010.77.80.1 – 10.77.95.25410.77.95.255
2310.77.96.0/2010.77.96.1 – 10.77.111.25410.77.111.255
2410.77.112.0/2010.77.112.1 – 10.77.127.25410.77.127.255
2510.77.128.0/2010.77.128.1 – 10.77.143.25410.77.143.255
2610.77.144.0/2010.77.144.1 – 10.77.159.25410.77.159.255
2710.77.160.0/2010.77.160.1 – 10.77.175.25410.77.175.255
2810.77.176.0/2010.77.176.1 – 10.77.191.25410.77.191.255
2910.77.192.0/2010.77.192.1 – 10.77.207.25410.77.207.255
3010.77.208.0/2010.77.208.1 – 10.77.223.25410.77.223.255
3110.77.224.0/2010.77.224.1 – 10.77.239.25410.77.239.255
3210.77.240.0/2010.77.240.1 – 10.77.255.25410.77.255.255
3310.78.0.0/2010.78.0.1 – 10.78.15.25410.78.15.255
3410.78.16.0/2010.78.16.1 – 10.78.31.25410.78.31.255
3510.78.32.0/2010.78.32.1 – 10.78.47.25410.78.47.255
3610.78.48.0/2010.78.48.1 – 10.78.63.25410.78.63.255
3710.78.64.0/2010.78.64.1 – 10.78.79.25410.78.79.255
3810.78.80.0/2010.78.80.1 – 10.78.95.25410.78.95.255
3910.78.96.0/2010.78.96.1 – 10.78.111.25410.78.111.255
4010.78.112.0/2010.78.112.1 – 10.78.127.25410.78.127.255
4110.78.128.0/2010.78.128.1 – 10.78.143.25410.78.143.255
4210.78.144.0/2010.78.144.1 – 10.78.159.25410.78.159.255
4310.78.160.0/2010.78.160.1 – 10.78.175.25410.78.175.255
4410.78.176.0/2010.78.176.1 – 10.78.191.25410.78.191.255
4510.78.192.0/2010.78.192.1 – 10.78.207.25410.78.207.255
4610.78.208.0/2010.78.208.1 – 10.78.223.25410.78.223.255
4710.78.224.0/2010.78.224.1 – 10.78.239.25410.78.239.255
4810.78.240.0/2010.78.240.1 – 10.78.255.25410.78.255.255
4910.79.0.0/2010.79.0.1 – 10.79.15.25410.79.15.255
5010.79.16.0/2010.79.16.1 – 10.79.31.25410.79.31.255
5110.79.32.0/2010.79.32.1 – 10.79.47.25410.79.47.255
5210.79.48.0/2010.79.48.1 – 10.79.63.25410.79.63.255
5310.79.64.0/2010.79.64.1 – 10.79.79.25410.79.79.255
5410.79.80.0/2010.79.80.1 – 10.79.95.25410.79.95.255
5510.79.96.0/2010.79.96.1 – 10.79.111.25410.79.111.255
5610.79.112.0/2010.79.112.1 – 10.79.127.25410.79.127.255
5710.79.128.0/2010.79.128.1 – 10.79.143.25410.79.143.255
5810.79.144.0/2010.79.144.1 – 10.79.159.25410.79.159.255
5910.79.160.0/2010.79.160.1 – 10.79.175.25410.79.175.255
6010.79.176.0/2010.79.176.1 – 10.79.191.25410.79.191.255
6110.79.192.0/2010.79.192.1 – 10.79.207.25410.79.207.255
6210.79.208.0/2010.79.208.1 – 10.79.223.25410.79.223.255
6310.79.224.0/2010.79.224.1 – 10.79.239.25410.79.239.255
6410.79.240.0/2010.79.240.1 – 10.79.255.25410.79.255.255
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 →