Subnet Calculator
A simple and effective tool to calculate your subnets. You can use some pre-defined templates.
IP address*
Subnet mask*
/8 - 255.0.0.0
/9 - 255.128.0.0
/10 - 255.192.0.0
/11 - 255.224.0.0
/12 - 255.240.0.0
/13 - 255.248.0.0
/14 - 255.252.0.0
/15 - 255.254.0.0
/16 - 255.255.0.0
/17 - 255.255.128.0
/18 - 255.255.192.0
/19 - 255.255.224.0
/20 - 255.255.240.0
/21 - 255.255.248.0
/22 - 255.255.252.0
/23 - 255.255.254.0
/24 - 255.255.255.0
/25 - 255.255.255.128
/26 - 255.255.255.192
/27 - 255.255.255.224
/28 - 255.255.255.240
/29 - 255.255.255.248
/30 - 255.255.255.252
/31 - 255.255.255.254
/32 - 255.255.255.255
Templates
-- Choose template (optional) --
Default Class A (10.0.0.0)
Default Class B (172.16.0.0)
Default Class C (192.168.0.0)
Easy Class A (10.1.0.0)
Easy Class B (172.16.1.0)
Easy Class C (192.168.1.0)
Calculate
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