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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)10.200.0.0/14
network10.200.0.0/14
broadcast10.203.255.255
first host10.200.0.1
last host10.203.255.254
subnet mask255.252.0.0
wildcard0.3.255.255
addresses262,144
usable hosts262,142
classA
ipcalc 10.200.0.0/14
address00001010.11001000.00000000.00000000
subnet mask11111111.11111100.00000000.00000000
network00001010.11001000.00000000.00000000
broadcast00001010.11001011.11111111.11111111
green = network part, grey = host part
hex0x0ac80000
decimal180879360
reverse dns0.0.200.10.in-addr.arpa
ipv4-mapped::ffff:ac8:0

/14 split into /20 · 64 subnets

close ×
#networkhost rangebroadcast
110.200.0.0/2010.200.0.1 – 10.200.15.25410.200.15.255
210.200.16.0/2010.200.16.1 – 10.200.31.25410.200.31.255
310.200.32.0/2010.200.32.1 – 10.200.47.25410.200.47.255
410.200.48.0/2010.200.48.1 – 10.200.63.25410.200.63.255
510.200.64.0/2010.200.64.1 – 10.200.79.25410.200.79.255
610.200.80.0/2010.200.80.1 – 10.200.95.25410.200.95.255
710.200.96.0/2010.200.96.1 – 10.200.111.25410.200.111.255
810.200.112.0/2010.200.112.1 – 10.200.127.25410.200.127.255
910.200.128.0/2010.200.128.1 – 10.200.143.25410.200.143.255
1010.200.144.0/2010.200.144.1 – 10.200.159.25410.200.159.255
1110.200.160.0/2010.200.160.1 – 10.200.175.25410.200.175.255
1210.200.176.0/2010.200.176.1 – 10.200.191.25410.200.191.255
1310.200.192.0/2010.200.192.1 – 10.200.207.25410.200.207.255
1410.200.208.0/2010.200.208.1 – 10.200.223.25410.200.223.255
1510.200.224.0/2010.200.224.1 – 10.200.239.25410.200.239.255
1610.200.240.0/2010.200.240.1 – 10.200.255.25410.200.255.255
1710.201.0.0/2010.201.0.1 – 10.201.15.25410.201.15.255
1810.201.16.0/2010.201.16.1 – 10.201.31.25410.201.31.255
1910.201.32.0/2010.201.32.1 – 10.201.47.25410.201.47.255
2010.201.48.0/2010.201.48.1 – 10.201.63.25410.201.63.255
2110.201.64.0/2010.201.64.1 – 10.201.79.25410.201.79.255
2210.201.80.0/2010.201.80.1 – 10.201.95.25410.201.95.255
2310.201.96.0/2010.201.96.1 – 10.201.111.25410.201.111.255
2410.201.112.0/2010.201.112.1 – 10.201.127.25410.201.127.255
2510.201.128.0/2010.201.128.1 – 10.201.143.25410.201.143.255
2610.201.144.0/2010.201.144.1 – 10.201.159.25410.201.159.255
2710.201.160.0/2010.201.160.1 – 10.201.175.25410.201.175.255
2810.201.176.0/2010.201.176.1 – 10.201.191.25410.201.191.255
2910.201.192.0/2010.201.192.1 – 10.201.207.25410.201.207.255
3010.201.208.0/2010.201.208.1 – 10.201.223.25410.201.223.255
3110.201.224.0/2010.201.224.1 – 10.201.239.25410.201.239.255
3210.201.240.0/2010.201.240.1 – 10.201.255.25410.201.255.255
3310.202.0.0/2010.202.0.1 – 10.202.15.25410.202.15.255
3410.202.16.0/2010.202.16.1 – 10.202.31.25410.202.31.255
3510.202.32.0/2010.202.32.1 – 10.202.47.25410.202.47.255
3610.202.48.0/2010.202.48.1 – 10.202.63.25410.202.63.255
3710.202.64.0/2010.202.64.1 – 10.202.79.25410.202.79.255
3810.202.80.0/2010.202.80.1 – 10.202.95.25410.202.95.255
3910.202.96.0/2010.202.96.1 – 10.202.111.25410.202.111.255
4010.202.112.0/2010.202.112.1 – 10.202.127.25410.202.127.255
4110.202.128.0/2010.202.128.1 – 10.202.143.25410.202.143.255
4210.202.144.0/2010.202.144.1 – 10.202.159.25410.202.159.255
4310.202.160.0/2010.202.160.1 – 10.202.175.25410.202.175.255
4410.202.176.0/2010.202.176.1 – 10.202.191.25410.202.191.255
4510.202.192.0/2010.202.192.1 – 10.202.207.25410.202.207.255
4610.202.208.0/2010.202.208.1 – 10.202.223.25410.202.223.255
4710.202.224.0/2010.202.224.1 – 10.202.239.25410.202.239.255
4810.202.240.0/2010.202.240.1 – 10.202.255.25410.202.255.255
4910.203.0.0/2010.203.0.1 – 10.203.15.25410.203.15.255
5010.203.16.0/2010.203.16.1 – 10.203.31.25410.203.31.255
5110.203.32.0/2010.203.32.1 – 10.203.47.25410.203.47.255
5210.203.48.0/2010.203.48.1 – 10.203.63.25410.203.63.255
5310.203.64.0/2010.203.64.1 – 10.203.79.25410.203.79.255
5410.203.80.0/2010.203.80.1 – 10.203.95.25410.203.95.255
5510.203.96.0/2010.203.96.1 – 10.203.111.25410.203.111.255
5610.203.112.0/2010.203.112.1 – 10.203.127.25410.203.127.255
5710.203.128.0/2010.203.128.1 – 10.203.143.25410.203.143.255
5810.203.144.0/2010.203.144.1 – 10.203.159.25410.203.159.255
5910.203.160.0/2010.203.160.1 – 10.203.175.25410.203.175.255
6010.203.176.0/2010.203.176.1 – 10.203.191.25410.203.191.255
6110.203.192.0/2010.203.192.1 – 10.203.207.25410.203.207.255
6210.203.208.0/2010.203.208.1 – 10.203.223.25410.203.223.255
6310.203.224.0/2010.203.224.1 – 10.203.239.25410.203.239.255
6410.203.240.0/2010.203.240.1 – 10.203.255.25410.203.255.255
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 →