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Kemu Network
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73 calculators online
News:
2017.01.08
  New calculla released ! Please go to calculla.com for the calculla v2. It's better, faster, more beautiful, redone for you in most modern technologies.
2015.08.25
  Two cars related tables released today: Tire codes - speed ratings and Tire codes - load index
2015.07.30
2015.04.06
  This time 3 new calculators for fractions: Fractions: adding and subtracting, Fractions: 4 operations and Fractions: inverse (reciprocal). Each of them shows all sub-steps needed to compute common denominators, create improper fraction (if needed), reduce the fraction etc.

IP calculator (networks/subnets)
Online utility for IP address calculations including netmask, broadcast and network addresses, wildcard mask, usable ranges, address format conversion etc. Accepts IP-s in hex/dec and also as one unsigned int number.
Some typical IPs:
Some typical IPs:

Host

IP decimal (many formats)
acceptable formats:
54.82.4.254
54 82 4 254
54:82:4:254
54,82,4,254
IP hex (many formats)
acceptable formats:
36.52.04.fe
36 52 04 fe
36:52:04:fe
36,52,04,fe
0x365204fe
365204fe
IP integer (unsigned int)
IP class
A (1 - 126)

Network

network classA B C   no class
first octet legal values
0 - 255
network bits
0
mask bits (net + subnet)
subnet bits
network mask
host mask (wildcard)
maximum subnets
hosts per subnet


Results

subnet address
0.0.0.0
subnet broadcast address
255.255.255.255
host range
0.0.0.1 - 255.255.255.254
subnet bitmap
hhhhhhhh.hhhhhhhh.hhhhhhhh.hhhhhhhh
Changes history
2015.02.07 New implementation: This calculator has been rewritten. The previous implementation was server-side (made in PHP). Each time the new value was entered or any button clicked, the full website reload was triggered. Current implementation works fully client-side - it's written in JavaScipt. No more reloads !