NBN 100 plans (also known as NBN Fast I) are the fastest widely available plans on the National Broadband Network. There are faster NBN speed tiers, but you need an HFC or FTTP connection type to get them.
Best NBN 100 plan this month
Each month, our team of experts selects the best NBN plan across each speed tier. Here's this month's pick for best NBN 100 plan:
We consider the average price you pay over 12 months - factoring in the end of any discounts.
We consider NBN 100 plans with the fastest download speeds during the busiest times of day.
We consider plans that offer zero-risk trials, the flexibility to bundle home phone plans or networking gear and whether the provider offers local Australian support.
If this plan doesn't suit you here are some of the most popular NBN 100 plans in the last seven days from our database of 34 internet providers:
Keep an eye out for introductory deals. Many NBN providers offer new customers a lower price for the first six or twelve months. You can save a lot by changing internet providers a couple of times per year.
How fast is an NBN 100 plan?
The maximum download speed for an NBN 100 plan is 100Mbps, and most NBN providers report typical evening download speeds in line with this maximum. This means that even between 7pm and 11pm, you shouldn't experience performance dips.
To give you an idea of how different the various NBN speed tiers perform, we've put together a list of common files you might download, paired with how long it would take to download them on each speed tier.
See how download times compare across NBN speed tiers. Choose what you're downloading:
Take our quiz to see what NBN speed tier we recommend for your household.
NBN SPEED TIER CHECK
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NBN 100/20 vs. NBN 100/40 plans

Two types of NBN 100 plans exist. The main difference between NBN 100/20 and NBN 100/40 plans is upload speed.
So why would you choose an NBN 100/20 plan over an NBN 100/40 plan or vice versa? Here are the main benefits of each speed tier:
Choosing NBN 100/20? Expect to save money.
As you'd expect, a plan with a slower upload speed is cheaper than one with higher capacity.
Generally speaking, you can save $5-$10 per month by choosing the plan with a 20 Mbps upload speed instead of the provider's 40 Mbps option.
Choosing NBN 100/40? Expect faster upload speeds.
Faster upload speeds are important for people who send large amounts of data, such as system backups, collaborative video editing, or large documents to work colleagues.
For example, if you want to upload a 1GB file on an NBN 100/20 connection, it will take approximately seven minutes to complete. However, you'd cut this time in half on an NBN 100/40 connection.
Here are NBN 100 plans sorted by fastest download speed:
How to upgrade from an NBN 100 plan
If you have an Hybrid-Fibre Coaxial (HFC) or Fibre to the Premises (FTTP) NBN connection type, then rather than NBN 100, you'll have the option of getting 10 times the speed if you don't think your NBN 100 plan will cut it. Don't have that connection type? The good news is some NBN customers can get a free upgrade to FTTP at no extra cost.
This program is available to customers on Fibre to the Node (FTTN) and Fibre to the Curb (FTTC) technology types. Once the infrastructure is live in your area, you'll need to opt-in to get the upgrade to full fibre. Unfortunately, there's no free and simple upgrade pathway for Fibre to the Building (FTTB) customers.
If you're eligible, you'll need to order an NBN 500 plan or above. You can refer to the NBN Co's list of selected areas to check if your address has been connected so far.
In most cases NBN 500 plans are the same price NBN 100 plans, so well worth upgrading if you have room in your budget and a desire for faster speeds.
Here's a look at NBN 100 plans vs. NBN 500 plans sorted by lowest price over 12 months:
Curious about other speed tiers? Here's a breakdown of how many users can fit comfortably on each NBN speed tier and the speeds you can expect from each:
| Speed tier | Best for | Max. speeds |
|---|---|---|
| NBN 12 | Lone, low internet users | 12Mbps |
| NBN 25 | Budget pick for 1-2 people | 25Mbps |
| NBN 50 | All-rounder for small households of 2-4 people | 50Mbps |
| NBN 100 | For WFH and larger households | 100Mbps |
| NBN 250 | Faster speeds for WFH and larger households | 250Mbps |
| NBN 500 | Seamless internet experience when everyone is online | 500Mbps |
| NBN 750 | Even faster speeds for simultaneous use | 750Mbps |
| NBN 1000 | The fastest speeds you can get for less than $100 per month | 1000Mbps |
| NBN 2000 | The fastest speeds you can get right now, at a premium | 2000Mbps |
NBN 100 vs. 5G home internet
There may be situations where your NBN 100 plan simply doesn't cut it or you can't upgrade to the faster speed tiers. That's where 5G home internet comes in. 5G home internet is delivered over mobile networks, but its meant for static use at one address rather then as with a mobile phone plan.
5G home internet plans are (unofficially) separated into speed tiers. Some plans limit speeds to 100 Mbps, while others offer uncapped speeds (with typical evening speeds between 200 Mbps and 300 Mbps).
5G home internet plans compare favourably in speed and are often a bit cheaper than their counterpart NBN plans – just make sure you have good 5G coverage at your home.
Here's a look at the cheapest 100Mbps cap and uncapped plans for comparison:
FAQs
Is NBN 100 fast enough for streaming in 4K?
Yes, an NBN 100 plan will have you sorted for streaming your TV shows in 4K. You could stream in 4K on four different streams if you wanted.
Is NBN 100 fast enough for gaming?
Yes, online games should run well, even when other members of your household are online. Downloads are much faster than on an NBN 50 plan. For example, a large game download (130GB) should take around three hours (rather than five), while a single large game update (20GB) is halved to just around 30 minutes.
Is NBN 100 fast enough for working from home?
Yes, an NBN 100 plan is the minimum we'd often recommend for working from home. Video conferencing apps such as Zoom or Google Meet should work well, and the extra bandwidth is useful for downloading large work files. If you also need to upload large files, then an NBN 100/40 plan is a better option if it's available at your address.
Alex Choros
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