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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)10.84.0.0/14
network10.84.0.0/14
broadcast10.87.255.255
first host10.84.0.1
last host10.87.255.254
subnet mask255.252.0.0
wildcard0.3.255.255
addresses262,144
usable hosts262,142
classA
ipcalc 10.84.0.0/14
address00001010.01010100.00000000.00000000
subnet mask11111111.11111100.00000000.00000000
network00001010.01010100.00000000.00000000
broadcast00001010.01010111.11111111.11111111
green = network part, grey = host part
hex0x0a540000
decimal173277184
reverse dns0.0.84.10.in-addr.arpa
ipv4-mapped::ffff:a54:0

/14 split into /20 · 64 subnets

close ×
#networkhost rangebroadcast
110.84.0.0/2010.84.0.1 – 10.84.15.25410.84.15.255
210.84.16.0/2010.84.16.1 – 10.84.31.25410.84.31.255
310.84.32.0/2010.84.32.1 – 10.84.47.25410.84.47.255
410.84.48.0/2010.84.48.1 – 10.84.63.25410.84.63.255
510.84.64.0/2010.84.64.1 – 10.84.79.25410.84.79.255
610.84.80.0/2010.84.80.1 – 10.84.95.25410.84.95.255
710.84.96.0/2010.84.96.1 – 10.84.111.25410.84.111.255
810.84.112.0/2010.84.112.1 – 10.84.127.25410.84.127.255
910.84.128.0/2010.84.128.1 – 10.84.143.25410.84.143.255
1010.84.144.0/2010.84.144.1 – 10.84.159.25410.84.159.255
1110.84.160.0/2010.84.160.1 – 10.84.175.25410.84.175.255
1210.84.176.0/2010.84.176.1 – 10.84.191.25410.84.191.255
1310.84.192.0/2010.84.192.1 – 10.84.207.25410.84.207.255
1410.84.208.0/2010.84.208.1 – 10.84.223.25410.84.223.255
1510.84.224.0/2010.84.224.1 – 10.84.239.25410.84.239.255
1610.84.240.0/2010.84.240.1 – 10.84.255.25410.84.255.255
1710.85.0.0/2010.85.0.1 – 10.85.15.25410.85.15.255
1810.85.16.0/2010.85.16.1 – 10.85.31.25410.85.31.255
1910.85.32.0/2010.85.32.1 – 10.85.47.25410.85.47.255
2010.85.48.0/2010.85.48.1 – 10.85.63.25410.85.63.255
2110.85.64.0/2010.85.64.1 – 10.85.79.25410.85.79.255
2210.85.80.0/2010.85.80.1 – 10.85.95.25410.85.95.255
2310.85.96.0/2010.85.96.1 – 10.85.111.25410.85.111.255
2410.85.112.0/2010.85.112.1 – 10.85.127.25410.85.127.255
2510.85.128.0/2010.85.128.1 – 10.85.143.25410.85.143.255
2610.85.144.0/2010.85.144.1 – 10.85.159.25410.85.159.255
2710.85.160.0/2010.85.160.1 – 10.85.175.25410.85.175.255
2810.85.176.0/2010.85.176.1 – 10.85.191.25410.85.191.255
2910.85.192.0/2010.85.192.1 – 10.85.207.25410.85.207.255
3010.85.208.0/2010.85.208.1 – 10.85.223.25410.85.223.255
3110.85.224.0/2010.85.224.1 – 10.85.239.25410.85.239.255
3210.85.240.0/2010.85.240.1 – 10.85.255.25410.85.255.255
3310.86.0.0/2010.86.0.1 – 10.86.15.25410.86.15.255
3410.86.16.0/2010.86.16.1 – 10.86.31.25410.86.31.255
3510.86.32.0/2010.86.32.1 – 10.86.47.25410.86.47.255
3610.86.48.0/2010.86.48.1 – 10.86.63.25410.86.63.255
3710.86.64.0/2010.86.64.1 – 10.86.79.25410.86.79.255
3810.86.80.0/2010.86.80.1 – 10.86.95.25410.86.95.255
3910.86.96.0/2010.86.96.1 – 10.86.111.25410.86.111.255
4010.86.112.0/2010.86.112.1 – 10.86.127.25410.86.127.255
4110.86.128.0/2010.86.128.1 – 10.86.143.25410.86.143.255
4210.86.144.0/2010.86.144.1 – 10.86.159.25410.86.159.255
4310.86.160.0/2010.86.160.1 – 10.86.175.25410.86.175.255
4410.86.176.0/2010.86.176.1 – 10.86.191.25410.86.191.255
4510.86.192.0/2010.86.192.1 – 10.86.207.25410.86.207.255
4610.86.208.0/2010.86.208.1 – 10.86.223.25410.86.223.255
4710.86.224.0/2010.86.224.1 – 10.86.239.25410.86.239.255
4810.86.240.0/2010.86.240.1 – 10.86.255.25410.86.255.255
4910.87.0.0/2010.87.0.1 – 10.87.15.25410.87.15.255
5010.87.16.0/2010.87.16.1 – 10.87.31.25410.87.31.255
5110.87.32.0/2010.87.32.1 – 10.87.47.25410.87.47.255
5210.87.48.0/2010.87.48.1 – 10.87.63.25410.87.63.255
5310.87.64.0/2010.87.64.1 – 10.87.79.25410.87.79.255
5410.87.80.0/2010.87.80.1 – 10.87.95.25410.87.95.255
5510.87.96.0/2010.87.96.1 – 10.87.111.25410.87.111.255
5610.87.112.0/2010.87.112.1 – 10.87.127.25410.87.127.255
5710.87.128.0/2010.87.128.1 – 10.87.143.25410.87.143.255
5810.87.144.0/2010.87.144.1 – 10.87.159.25410.87.159.255
5910.87.160.0/2010.87.160.1 – 10.87.175.25410.87.175.255
6010.87.176.0/2010.87.176.1 – 10.87.191.25410.87.191.255
6110.87.192.0/2010.87.192.1 – 10.87.207.25410.87.207.255
6210.87.208.0/2010.87.208.1 – 10.87.223.25410.87.223.255
6310.87.224.0/2010.87.224.1 – 10.87.239.25410.87.239.255
6410.87.240.0/2010.87.240.1 – 10.87.255.25410.87.255.255
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 →