What Internet Speed Do I Need? South Africa
How many Mbps do you need? This free calculator sizes your home internet from what you do on a busy evening, and tells you whether fibre or fixed wireless fits best.
Not sure what internet speed to actually buy? Most people either overpay for a headline number they never feel, or pick a line that struggles the moment the house gets busy. This free tool asks what your home really does on a busy evening, then works out a sensible download and upload speed to aim for, and whether fibre or 5G and LTE fixed wireless suits you better. When you have your number, it sends you straight to our deal comparisons to find the cheapest plan that fits.
What internet speed do I need?
Tell us what your home actually does on a busy evening, and we work out the speed to aim for, without the upsell.
South Africa, updated 5 July 2026
Quick start
Pick a household like yours, or build your own below
Step 1
On a busy evening, what happens at the same time?
This is the part that matters. A line struggles when several things run at once, not because the headline number is small. Count only what runs together at your busiest moment.
Step 2
Any gaming in the house?
Gaming barely uses data, but competitive play lives and dies on a steady, low ping, which changes the kind of line we suggest.
Step 3
Anything that pushes data up, not just down?
Uploads are the quiet half of a connection, and the half most deals skimp on. These raise the upload speed you should look for.
How we work this out, and the honest caveats
- We add up the busy moment, not the whole day. Each live activity gets a realistic slice: about 25 Mbps for a 4K stream, 5 Mbps for an HD stream, 4 Mbps for a video call, 30 Mbps for a cloud gaming session, and a couple of Mbps each for people just browsing. We add a small base for background devices and updates, then a bit of headroom so nothing chokes when a big download lands mid-evening.
- Speed is not the same as quality. Past roughly 100 Mbps, a typical home rarely feels a faster number. Beyond your real need, the money is better spent on a steady connection, decent uploads and good WiFi in the house than on a bigger headline speed.
- Uploads and ping matter more than most people think. Video calls, gaming and cloud backups depend on upload and on a stable, low latency far more than on raw download. This is where fibre pulls ahead of wireless.
- Fixed wireless speeds are best effort. On 5G and LTE, the quoted speed is a ceiling that depends on the tower and how busy it is, and most "uncapped" plans slow down after a fair-use limit. Treat the number as a good-day figure, not a promise.
- This is a guide to point you at the right ballpark, not a guarantee. Your WiFi, your router, the wiring and the number of walls all shape what you actually get.
How many Mbps do I need in South Africa?
There is no single right answer, because the speed you need depends on how many people use the internet at the same time and what they do. As a rough guide, a single person or a couple are comfortable on about 25 Mbps, a typical family sits happily on 50 Mbps, and a busy home that streams 4K while someone works or games wants 100 Mbps. You only need 200 Mbps or more when many people do heavy things at once. The calculator above turns your own household into a download and upload figure, and tells you whether fibre or 5G and LTE fixed wireless suits you better.
Common questions
Is 25 Mbps enough?
For one or two people it usually is. 25 Mbps comfortably handles browsing, social media and a single 4K stream at a time, so it suits a smaller home or a couple who are not all online at once. It gets tight when several devices stream together or someone works from home while others watch, in which case 50 Mbps is a safer floor.
Is 50 Mbps enough for a family?
For most families, yes. 50 Mbps carries a couple of streams, phones and the odd video call at the same time without a fuss. Step up to 100 Mbps only if several people stream 4K at once, someone games in the cloud, or a lot of heavy use happens together in the evening.
Is 100 Mbps enough?
For the large majority of South African homes, 100 Mbps is plenty, even a busy family that streams 4K while someone works and someone games. Past 100 Mbps most homes rarely feel the difference, so you only need 200 Mbps or more if many people do heavy things at exactly the same time.
How many Mbps do I need for Netflix?
About 5 Mbps for HD and roughly 25 Mbps for 4K Ultra HD, per stream. Two 4K streams at once need about 50 Mbps between them, so it is the number of streams running together, not Netflix itself, that drives the speed you need.
What is a good upload speed?
For general use, 5 to 10 Mbps upload is fine. If you work from home on video calls, back up to the cloud, live stream or run security cameras, aim for 20 Mbps or more, and lean towards fibre, which usually gives a much higher upload than 5G or LTE.
Once you have your number, compare deals with our home fibre comparison or 5G and LTE comparison, and read the full guide to choosing an internet speed.