NBN Speed Tiers Explained
The NBN uses numbered speed tiers, from NBN25 to NBN2000. Each tier sets the maximum download and upload speed your plan can reach. The NBN sets these tiers — ISPs then package them into retail plans with their own pricing, which is why the same tier can cost quite different amounts depending on who you buy from.
The NBN Speed Tier Table
| Tier | Max Download | Max Upload | Typical use |
|---|---|---|---|
| NBN25 | 25 Mbps | 5 Mbps | One or two screens at once |
| NBN50 | 50 Mbps | 20 Mbps | Most households — streaming, working from home |
| NBN100 | 100 Mbps | 40 Mbps | 4K streaming, large file transfers |
| NBN250 | 250 Mbps | 25 Mbps | Heavy households — multiple users, large files |
| NBN500 | 500 Mbps | 50 Mbps | Power households — simultaneous everything |
| NBN1000 | 1000 Mbps | 50 Mbps | Extreme users — huge files, multiple 4K streams |
| NBN2000 | 2000 Mbps | 150 Mbps | Future-proof — very limited availability |
One quirk is worth knowing: the NBN250 tier caps uploads at 25 Mbps — less than NBN100's 40 Mbps — so "fast download" doesn't always mean "fast upload". If uploading matters to you, read the upload column before choosing.
Which One Do I Need?
A useful rule of thumb is roughly 10–20 Mbps per person for comfortable 4K streaming, plus headroom for whatever else happens at once.
1–2 people, light use — NBN25 or NBN50. Browsing, HD streaming, and video calls all fit comfortably.
Family of 3–4, regular streaming — NBN50 or NBN100. This is the sweet spot for most Australian households: multiple 4K streams, working from home, and downloads at once.
Multiple heavy users, gaming, content creation — NBN250 or above. Video editors, downloaders, and homes with constant simultaneous streaming benefit from the extra ceiling — and from the higher upload caps on NBN500.
Do you need the upload speed? Upload matters more than people expect: video calls, cloud backups, live streaming, and uploading photos all use it. If you host anything or stream to Twitch, look at the upload column, not just the download number.
What About Real-World Speeds?
The numbers above are maximums — what you actually get depends on:
- Connection type — fibre (FTTP, HFC) tends to deliver closer to the advertised speed. Copper (FTTN, FTTB) and Fixed Wireless vary more with distance and network load.
- Time of day — speeds drop during peak hours (7–11 pm) as more people on the same node share bandwidth.
- Your router and wiring — an old router or poor in-home cabling can bottleneck speeds well below what the NBN line can deliver.
Connection types:
- FTTP — Fibre to the Premises
- HFC — Hybrid Fibre Coaxial
- FTTN — Fibre to the Node
- FTTB — Fibre to the Basement
- Fixed Wireless — wireless signal from a tower to a dish on your roof
- Satellite — signal from a satellite in space
If you're on copper, a tier one level above your needs can be worth it, since copper lines lose more of their theoretical maximum in practice.
Don't Pay for Speed You Won't Use
The most common overpayment is buying a fast tier that the household never touches. A family streaming two 4K shows and doing schoolwork is well served by NBN100 — jumping to NBN500 rarely makes the evening any smoother. Use our prices page to compare the same tier across every provider, and check real-world performance on the providers page before deciding which tier you actually need.
FAQ
What's the difference between NBN100 and NBN250 worth paying for?
For most homes, little. NBN250 buys you a higher download ceiling and (on most providers) better consistency under load. If your NBN100 plan is already fast enough for your evening of Netflix and downloads, the upgrade will be invisible. It earns its keep for download-heavy households and content creators.
Why is the NBN250 upload slower than the NBN100's?
The upload cap is set per tier by the NBN's wholesale packaging, and NBN250's 25 Mbps upload is a known quirk — it's lower than NBN100's 40 Mbps. If upload speed matters to you (video calls, backups, streaming), prefer NBN100 or NBN500 over NBN250.
Can I get more than the tier's maximum speed?
No. Your retail plan can never exceed its tier's wholesale ceiling, even if your connection type could handle more. To go faster you need to move up a tier.
Do 4K streams really need that much speed?
A single 4K stream on Netflix or YouTube wants roughly 15–25 Mbps. Two or three at once, plus everything else the house does, is where NBN100 starts to matter — but a single 4K stream is comfortably within NBN50.
Is NBN2000 available to most people?
No. It's offered by only a handful of providers and only on FTTP and some HFC premises. For the vast majority of Australian addresses the realistic top end is NBN1000.