ip
ipku.in

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)10.14.64.0/18
network10.14.64.0/18
broadcast10.14.127.255
first host10.14.64.1
last host10.14.127.254
subnet mask255.255.192.0
wildcard0.0.63.255
addresses16,384
usable hosts16,382
classA
ipcalc 10.14.64.0/18
address00001010.00001110.01000000.00000000
subnet mask11111111.11111111.11000000.00000000
network00001010.00001110.01000000.00000000
broadcast00001010.00001110.01111111.11111111
green = network part, grey = host part
hex0x0a0e4000
decimal168706048
reverse dns0.64.14.10.in-addr.arpa
ipv4-mapped::ffff:a0e:4000

/18 split into /25 · 128 subnets

close ×
#networkhost rangebroadcast
110.14.64.0/2510.14.64.1 – 10.14.64.12610.14.64.127
210.14.64.128/2510.14.64.129 – 10.14.64.25410.14.64.255
310.14.65.0/2510.14.65.1 – 10.14.65.12610.14.65.127
410.14.65.128/2510.14.65.129 – 10.14.65.25410.14.65.255
510.14.66.0/2510.14.66.1 – 10.14.66.12610.14.66.127
610.14.66.128/2510.14.66.129 – 10.14.66.25410.14.66.255
710.14.67.0/2510.14.67.1 – 10.14.67.12610.14.67.127
810.14.67.128/2510.14.67.129 – 10.14.67.25410.14.67.255
910.14.68.0/2510.14.68.1 – 10.14.68.12610.14.68.127
1010.14.68.128/2510.14.68.129 – 10.14.68.25410.14.68.255
1110.14.69.0/2510.14.69.1 – 10.14.69.12610.14.69.127
1210.14.69.128/2510.14.69.129 – 10.14.69.25410.14.69.255
1310.14.70.0/2510.14.70.1 – 10.14.70.12610.14.70.127
1410.14.70.128/2510.14.70.129 – 10.14.70.25410.14.70.255
1510.14.71.0/2510.14.71.1 – 10.14.71.12610.14.71.127
1610.14.71.128/2510.14.71.129 – 10.14.71.25410.14.71.255
1710.14.72.0/2510.14.72.1 – 10.14.72.12610.14.72.127
1810.14.72.128/2510.14.72.129 – 10.14.72.25410.14.72.255
1910.14.73.0/2510.14.73.1 – 10.14.73.12610.14.73.127
2010.14.73.128/2510.14.73.129 – 10.14.73.25410.14.73.255
2110.14.74.0/2510.14.74.1 – 10.14.74.12610.14.74.127
2210.14.74.128/2510.14.74.129 – 10.14.74.25410.14.74.255
2310.14.75.0/2510.14.75.1 – 10.14.75.12610.14.75.127
2410.14.75.128/2510.14.75.129 – 10.14.75.25410.14.75.255
2510.14.76.0/2510.14.76.1 – 10.14.76.12610.14.76.127
2610.14.76.128/2510.14.76.129 – 10.14.76.25410.14.76.255
2710.14.77.0/2510.14.77.1 – 10.14.77.12610.14.77.127
2810.14.77.128/2510.14.77.129 – 10.14.77.25410.14.77.255
2910.14.78.0/2510.14.78.1 – 10.14.78.12610.14.78.127
3010.14.78.128/2510.14.78.129 – 10.14.78.25410.14.78.255
3110.14.79.0/2510.14.79.1 – 10.14.79.12610.14.79.127
3210.14.79.128/2510.14.79.129 – 10.14.79.25410.14.79.255
3310.14.80.0/2510.14.80.1 – 10.14.80.12610.14.80.127
3410.14.80.128/2510.14.80.129 – 10.14.80.25410.14.80.255
3510.14.81.0/2510.14.81.1 – 10.14.81.12610.14.81.127
3610.14.81.128/2510.14.81.129 – 10.14.81.25410.14.81.255
3710.14.82.0/2510.14.82.1 – 10.14.82.12610.14.82.127
3810.14.82.128/2510.14.82.129 – 10.14.82.25410.14.82.255
3910.14.83.0/2510.14.83.1 – 10.14.83.12610.14.83.127
4010.14.83.128/2510.14.83.129 – 10.14.83.25410.14.83.255
4110.14.84.0/2510.14.84.1 – 10.14.84.12610.14.84.127
4210.14.84.128/2510.14.84.129 – 10.14.84.25410.14.84.255
4310.14.85.0/2510.14.85.1 – 10.14.85.12610.14.85.127
4410.14.85.128/2510.14.85.129 – 10.14.85.25410.14.85.255
4510.14.86.0/2510.14.86.1 – 10.14.86.12610.14.86.127
4610.14.86.128/2510.14.86.129 – 10.14.86.25410.14.86.255
4710.14.87.0/2510.14.87.1 – 10.14.87.12610.14.87.127
4810.14.87.128/2510.14.87.129 – 10.14.87.25410.14.87.255
4910.14.88.0/2510.14.88.1 – 10.14.88.12610.14.88.127
5010.14.88.128/2510.14.88.129 – 10.14.88.25410.14.88.255
5110.14.89.0/2510.14.89.1 – 10.14.89.12610.14.89.127
5210.14.89.128/2510.14.89.129 – 10.14.89.25410.14.89.255
5310.14.90.0/2510.14.90.1 – 10.14.90.12610.14.90.127
5410.14.90.128/2510.14.90.129 – 10.14.90.25410.14.90.255
5510.14.91.0/2510.14.91.1 – 10.14.91.12610.14.91.127
5610.14.91.128/2510.14.91.129 – 10.14.91.25410.14.91.255
5710.14.92.0/2510.14.92.1 – 10.14.92.12610.14.92.127
5810.14.92.128/2510.14.92.129 – 10.14.92.25410.14.92.255
5910.14.93.0/2510.14.93.1 – 10.14.93.12610.14.93.127
6010.14.93.128/2510.14.93.129 – 10.14.93.25410.14.93.255
6110.14.94.0/2510.14.94.1 – 10.14.94.12610.14.94.127
6210.14.94.128/2510.14.94.129 – 10.14.94.25410.14.94.255
6310.14.95.0/2510.14.95.1 – 10.14.95.12610.14.95.127
6410.14.95.128/2510.14.95.129 – 10.14.95.25410.14.95.255
6510.14.96.0/2510.14.96.1 – 10.14.96.12610.14.96.127
6610.14.96.128/2510.14.96.129 – 10.14.96.25410.14.96.255
6710.14.97.0/2510.14.97.1 – 10.14.97.12610.14.97.127
6810.14.97.128/2510.14.97.129 – 10.14.97.25410.14.97.255
6910.14.98.0/2510.14.98.1 – 10.14.98.12610.14.98.127
7010.14.98.128/2510.14.98.129 – 10.14.98.25410.14.98.255
7110.14.99.0/2510.14.99.1 – 10.14.99.12610.14.99.127
7210.14.99.128/2510.14.99.129 – 10.14.99.25410.14.99.255
7310.14.100.0/2510.14.100.1 – 10.14.100.12610.14.100.127
7410.14.100.128/2510.14.100.129 – 10.14.100.25410.14.100.255
7510.14.101.0/2510.14.101.1 – 10.14.101.12610.14.101.127
7610.14.101.128/2510.14.101.129 – 10.14.101.25410.14.101.255
7710.14.102.0/2510.14.102.1 – 10.14.102.12610.14.102.127
7810.14.102.128/2510.14.102.129 – 10.14.102.25410.14.102.255
7910.14.103.0/2510.14.103.1 – 10.14.103.12610.14.103.127
8010.14.103.128/2510.14.103.129 – 10.14.103.25410.14.103.255
8110.14.104.0/2510.14.104.1 – 10.14.104.12610.14.104.127
8210.14.104.128/2510.14.104.129 – 10.14.104.25410.14.104.255
8310.14.105.0/2510.14.105.1 – 10.14.105.12610.14.105.127
8410.14.105.128/2510.14.105.129 – 10.14.105.25410.14.105.255
8510.14.106.0/2510.14.106.1 – 10.14.106.12610.14.106.127
8610.14.106.128/2510.14.106.129 – 10.14.106.25410.14.106.255
8710.14.107.0/2510.14.107.1 – 10.14.107.12610.14.107.127
8810.14.107.128/2510.14.107.129 – 10.14.107.25410.14.107.255
8910.14.108.0/2510.14.108.1 – 10.14.108.12610.14.108.127
9010.14.108.128/2510.14.108.129 – 10.14.108.25410.14.108.255
9110.14.109.0/2510.14.109.1 – 10.14.109.12610.14.109.127
9210.14.109.128/2510.14.109.129 – 10.14.109.25410.14.109.255
9310.14.110.0/2510.14.110.1 – 10.14.110.12610.14.110.127
9410.14.110.128/2510.14.110.129 – 10.14.110.25410.14.110.255
9510.14.111.0/2510.14.111.1 – 10.14.111.12610.14.111.127
9610.14.111.128/2510.14.111.129 – 10.14.111.25410.14.111.255
9710.14.112.0/2510.14.112.1 – 10.14.112.12610.14.112.127
9810.14.112.128/2510.14.112.129 – 10.14.112.25410.14.112.255
9910.14.113.0/2510.14.113.1 – 10.14.113.12610.14.113.127
10010.14.113.128/2510.14.113.129 – 10.14.113.25410.14.113.255
10110.14.114.0/2510.14.114.1 – 10.14.114.12610.14.114.127
10210.14.114.128/2510.14.114.129 – 10.14.114.25410.14.114.255
10310.14.115.0/2510.14.115.1 – 10.14.115.12610.14.115.127
10410.14.115.128/2510.14.115.129 – 10.14.115.25410.14.115.255
10510.14.116.0/2510.14.116.1 – 10.14.116.12610.14.116.127
10610.14.116.128/2510.14.116.129 – 10.14.116.25410.14.116.255
10710.14.117.0/2510.14.117.1 – 10.14.117.12610.14.117.127
10810.14.117.128/2510.14.117.129 – 10.14.117.25410.14.117.255
10910.14.118.0/2510.14.118.1 – 10.14.118.12610.14.118.127
11010.14.118.128/2510.14.118.129 – 10.14.118.25410.14.118.255
11110.14.119.0/2510.14.119.1 – 10.14.119.12610.14.119.127
11210.14.119.128/2510.14.119.129 – 10.14.119.25410.14.119.255
11310.14.120.0/2510.14.120.1 – 10.14.120.12610.14.120.127
11410.14.120.128/2510.14.120.129 – 10.14.120.25410.14.120.255
11510.14.121.0/2510.14.121.1 – 10.14.121.12610.14.121.127
11610.14.121.128/2510.14.121.129 – 10.14.121.25410.14.121.255
11710.14.122.0/2510.14.122.1 – 10.14.122.12610.14.122.127
11810.14.122.128/2510.14.122.129 – 10.14.122.25410.14.122.255
11910.14.123.0/2510.14.123.1 – 10.14.123.12610.14.123.127
12010.14.123.128/2510.14.123.129 – 10.14.123.25410.14.123.255
12110.14.124.0/2510.14.124.1 – 10.14.124.12610.14.124.127
12210.14.124.128/2510.14.124.129 – 10.14.124.25410.14.124.255
12310.14.125.0/2510.14.125.1 – 10.14.125.12610.14.125.127
12410.14.125.128/2510.14.125.129 – 10.14.125.25410.14.125.255
12510.14.126.0/2510.14.126.1 – 10.14.126.12610.14.126.127
12610.14.126.128/2510.14.126.129 – 10.14.126.25410.14.126.255
12710.14.127.0/2510.14.127.1 – 10.14.127.12610.14.127.127
12810.14.127.128/2510.14.127.129 – 10.14.127.25410.14.127.255
01 / table

IPv4 CIDR prefix table.

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

prefixsubnet maskaddresseshostsin your /18
/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-
/14255.252.0.0262,144262,142-
/15255.254.0.0131,072131,070-
/16255.255.0.065,53665,534-
/17255.255.128.032,76832,766-
/18255.255.192.016,38416,3821
/19255.255.224.08,1928,1902 split →
/20255.255.240.04,0964,0944 split →
/21255.255.248.02,0482,0468 split →
/22255.255.252.01,0241,02216 split →
/23255.255.254.051251032 split →
/24255.255.255.025625464 split →
/25255.255.255.128128126128 split →
/26255.255.255.1926462256 split →
/27255.255.255.2243230512 split →
/28255.255.255.24016141,024 split →
/29255.255.255.248862,048 split →
/30255.255.255.252424,096 split →
/31255.255.255.254228,192 split →
/32255.255.255.2551116,384 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 →