12 Best Free Online IPv6 Subnet Calculator Websites

Here is a list of the best free online IPv6 subnet calculator websites. A subnet is short for the subnetwork. A subnet is a network within a network.  Having subnets improves the efficiency of the network. Through subnetting, network traffic can avoid unnecessary routers and take a short route to reach its destination. A subnet calculator helps you find the number of possible subnets for a given network address.

This post covers 12 online IPv6 subnet calculators that you can use online. These calculators can help you find the possible subnets and usable addresses of an IPv6 network. You can visit the respective website and then input your IPv6 address with the prefix value. Based on that, the calculator the total number of hosts including the host range. Along with that, you also get other network and subnetting information such as Expanded Notation, Condensed Notation, Prefix Length, Network Prefix with Mask, Prefix Address, list of addresses, etc.

My Favorite Online IPv6 Subnet Calculator

Internex is my favorite online IPv6 subnet calculator on this list. It gives you the total IPs along with the range in a nice and clean layout. But if you need to divide your network then you have the option to enter that information along with the IP. This gives you a list of possible addresses that you can use in your network.

Check out other lists of the best free Network IP Scanner Software For Windows, Open Source IP Changer Software for Windows, and Online NSLookup Websites.

Internex.at

Internex offers a free online IPv6 subnet calculator. It calculates the total number of hosts you can create. It takes IPv6 with prefix as input. With that, you can also specify the number of subnets or subnet-types. In the output, it shows the Address Type, Expanded IPv6, Minimized IPv6. It gives the Network, First Address, Last Address, and Total IP Addresses. Alongside that, it lists Binary IPv6 as well. Apart from the calculation, it also generates a list of possible networks that you can have.

How to perform IPv6 subnet calculation?

• Use the link given below to use this IPv6 subnet calculator.
• Enter the IPv6 address along with the Prefix.
• Define Number of Subnets or Subnet-Type if needed.
• Then, click on the Calculate button.
• This gives you the Total IP Addresses along with First Address, Last Address, and more.

Additional Features:

• Option to specify Number of Subnets or Subnet-Type.
• Generates a list of possible networks.
• Generates a URL to share the calculation online.

CoderStool.com

CoderStool has a free online IPv6 Subnet Calculator. This calculator calculates the subnetting IP information for a given IPv6 address. It starts with the short and expanded notation of the given IPv6 address and network address. Then it shows the number of total and usable hosts along with the usable host IP range. Apart from that, it also shows the IP Type with CIDR Notation and Reverse DNS.

How to perform IPv6 subnet calculation?

• Use the link given below to access this calculator.
• Paste the IPv6 address and select prefix length.
• Then, click on the Get IP Info button to get the results.

Additional Features:

• Finds the Broadcast Address along with IP Type and Class info.
• Shows CIDR Notation and Reverse DNS.

CIDR.eu

CIDR.eu is an internet register website with an IPv6 Subnet Calculator. This calculator finds the network range for a given IPv6 address. When you enter the IP address with the prefix, it gives you Subnet Prefix (CIDR Notation), the network range, and Prefix Address. This information is followed by the expanded network address, compressed network address, and decimal representation. Along with that, you can also get a list of more specific subnets for a given prefix. However, the list is limited to 1024 rows.

How to perform IPv6 subnet calculation?

• Open this IPv6 Subnet Calculator using the link given below.
• Enter the IPv6 address and select the prefix value.
• Then click on the Calculate button to get the network range along with other info.

Additional Features:

• Gives CIDR Notation of the subnet prefix.
• Option to get a list of specific subnets with range.

TunnelsUp.com

TunnelsUp is a free online IPv6 subnet calculator website. This calculator takes IPv6 address with netmask as input. In the output, it starts with the Expanded and Condensed Notations of the IPv6 address. This is followed by Prefix Length, Network Prefix with Mask, and Prefix Address. Lastly, it tells you the Total number of hosts along with the Host Range. It also shows the percentage of the calculated host range in the total IPv6 pool.

How to perform IPv6 subnet calculation?

• Follow the link given below to use this IPv6 subnet calculator.
• Enter the IPv6 address along with the Netmask and click on the Calculate button.
• This gives you the Total number of hosts and Host Range along with % of total IPv6 Pool and more.

Additional Features:

• Option to calculate the subnet for a random IP address.
• Offers example IP address input covering IPv4 and IPv6.
• URL Parameters: Add the IP address to the URL to go directly to that IP and calculate it.

GestioIP.net

GestioIP is another website with a free online IPv6 Subnet Calculator. This calculator comes with a minimal interface where you can input IPv6 address and prefix. For a valid input, it shows the network address, network type, prefix length, network range, and total IP addresses. It also gives you various networks ID including integer, hexadecimal, binary, etc. Last but not least, it shows a list of subnets with the number of networks and addresses.

How to perform IPv6 subnet calculation?

• Go to the link given below to access this IPv6 subnet calculator.
• Enter the IPv6 address and select the Prefix value.
• Click the calculate button to get the network range, total IP addresses, and more.

Additional Features:

• Shows the Integer ID, Hexadecimal ID, Dotted Decimal ID, Base 85 ID, and Binary ID.
• Converts the IP address to ip6.arpa Format.
• Lists subnet levels for the network.

Site24x7.com

Site24x7 offers an online IPv6 Subnet Calculator. This calculator performs network calculations on the given IPv6 address and routing prefix. For that information, it determines the subnet address, host range, and notation for the subnet. It generates a full list of subnet IDs with subnet addresses, ranges, and notations.

How to perform IPv6 subnet calculation?

• Follow the link given below to use this IPv6 subnet calculator.
• Enter the Network address block and the Number of subnets there.
• It instantly gives you the subnet details for that.

Additional Features:

• Generates a full list of subnets IDs.

Network00.com

Network00 offers a variety of networks tools including an online IPv6 Subnet Calculator. This calculator gives you network subnetting information for a given IPv6 address. You have to enter the IP address with prefix. For that, it gives you the network address, network mask, first host, last host, and network range. It shows all these addresses in compressed and expanded forms. The results include the network addresses in hex and decimal values.

How to perform IPv6 subnet calculation?

• Go to this IPv6 subnet calculator using the link mentioned below.
• Enter your IPv6 address with prefix and click the Calculate button.
• This gives you the subnetting information of the network.

Additional Features:

• Shows the total number of IP Addresses with network bit and host bit.
• It also lists DNS PTR Record and other IP info.

Vultr.com

Vultr is a free website with an online IPv6 subnet calculator. When you input the IPv6 address to this calculator, it finds the address range for that IP. It shows the starting address and ending address of the range along with Mask bit and available subnets. It also lists usable addresses. Apart from that, it converts the IPv6 to CIDR Notation and shows that on the screen.

How to perform IPv6 subnet calculation?

• Use the link given below this IPv6 subnet calculator.
• Enter the IPv6 address and click on the Calculate Subnet button.
• It gives the Address Range with Start Address and End Address.

Additional Features:

• Converts IPv6 CIDR notation.

SubnettingPractice.com

SubnettingPractice is a website with subnetting questions along with their answers. It has a free IPv6 Subnetting calculator to get the network subnetting information. To do that, you have to input an IPv6 address and the subnet size in slash notation. Then, it gives you the Compressed Address, Expanded Address, Prefix, Range, and the number of subnets. Apart from that, you can select a subnet number of subnet size and get a list of subnet IPs for the same.

How to perform IPv6 subnet calculation?

• Use the link given below to access this IPv6 subnet calculator.
• Paste the IPv6 address there including the prefix.
• Click the Calculate button to get the results.

Additional Features:

• It can divide the network for a given number of subnets.

 

Calculator.net

Calculator.net is a popular website with a huge collection of calculators for various needs. It has an online IP Subnet Calculator where you can find the IP Range for IPv4 and IPv6 addresses. IPv6 Subnet Calculator takes the IPv6 with Prefix Length as input. In the output, it shows the number of total IP addresses along with IP range and network address.

How to perform IPv6 subnet calculation?

• Go to this calculator by following the link given below.
• Select the Prefix Length and enter the IPv6 address.
• Click on the Calculate button to get the IP range.

Additional Features:

• Users can use the link to share the calculation with others.

TehnoBlog.org

TehnoBlog offers a free online IPv6 Subnet Calculator. This calculator finds the total number of IPs for a valid IPv6 address. You have to enter the IPv6 address and the prefix. In the output, it shows you the abbreviated address, unabbreviated address, and the total number of IPs. Along with that, it also lists the first available address and last available address.

How to perform IPv6 subnet calculation?

• Follow the link given below to use this IPv6 subnet calculator.
• Enter the IPv6 address and select the Prefix from the dropdown list.
• Then click the Calculate button to get the results.

Nigsun.net

Nigsun is a telecom company that has a free IPv6 Subnet Calculator on its website. This calculator is quite simple and looks pretty barebone in terms of UI. But it does the job. When given a valid IPv6 address with the prefix, it tells the number of IPs for that network. It shows the Start and End IP addresses on the screen. Along with that, it also includes the Abbreviated Address, Unabbreviated Address, Prefix Length, and Prefix Address.

How to perform IPv6 subnet calculation?

• Use the link given below to access this calculator directly.
• Paste the IPv6 address and select the prefix value for calculation.
• After that, click on the Check button to get the output.