How much internet speed do I need?
Count what your household does at the same time at the busiest moment. The calculator adds up download and upload using figures published by Netflix, YouTube, Zoom, NVIDIA and Twitch, adds headroom, and suggests a plan tier.
Count what happens at the same time at the busiest moment.
Show the calculation
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How the calculator works
Your connection only has to handle what happens at the same time. Five people who stream at different hours need less than two people streaming 4K while someone else is on a video call. So the calculator asks for the busiest moment, not the number of people or devices.
For each activity it multiplies the number of simultaneous uses by that activity's rate, adds download and upload separately, then applies headroom:
needed = Σ (simultaneous uses × Mbps per use) × (1 + headroom)
Headroom defaults to 30% and covers protocol overhead, Wi-Fi losses and spikes; 20–40% is sensible. The suggested plan is the next common tier at or above the download figure: 25, 50, 100, 200, 300, 500, 1,000 or 2,000 Mbps. Upload is shown separately because it is often what runs out first. Presets for Solo, Couple, Family of 4 (WFH), Gamer household and Creator give you a starting point to edit.
Worked example: family of four working from home
| At the same time | Down (Mbps) | Up (Mbps) |
|---|---|---|
| 2 × 1080p video calls (Zoom: 3.8 down / 3.0 up) | 7.6 | 6.0 |
| 1 × 4K stream (YouTube: 20) | 20 | 0 |
| 1 × 1080p stream (Netflix: 5) | 5 | 0 |
| 1 × online game (estimate) | 3 | 1 |
| 2 × browsing (estimate) | 2 | 0.2 |
| 10 × idle devices (estimate) | 1 | 0.5 |
| Peak | 38.6 | 7.7 |
| With 30% headroom | 50.2 | 10.0 |
That household fits on a 100 Mbps plan, but only if the upload is at least 10 Mbps; a 100/20 plan is comfortable. Gigabit would not improve any of those activities; it would only make large downloads finish sooner. Is gigabit worth it? covers that trade-off.
The Creator preset shows the opposite pattern: a 1080p60 live stream (6 Mbps up), a 720p call, a 1080p stream, browsing and six idle devices need only about 12.6 Mbps down but about 10.7 Mbps up with headroom.
Where the numbers come from
Video rates come from Netflix (3, 5 and 15 Mbps for 720p, 1080p and 4K) and YouTube (20 Mbps for 4K, 2.5 Mbps for 720p, 1.1 Mbps for 480p); for 4K the calculator uses the higher YouTube figure. Video calls use Zoom's published bandwidth, cloud gaming uses NVIDIA GeForce NOW's requirements, and live streaming uses Twitch's recommendation of up to 6,000 kbps for 1080p60. Browsing, game traffic, cameras and idle devices are our own estimates and are labelled as such. The full table is in internet speed by activity.
Speed isn't everything: ping
For games and calls, delay matters more than bandwidth. When you add them, the calculator shows a latency target: under 80 ms to the data center for GeForce NOW cloud gaming (NVIDIA's requirement), under about 50 ms for fast online games (our estimate), and one-way delay under 150 ms for calls, following ITU-T G.114. A faster plan does not lower ping by itself; latency vs bandwidth explains what does. To test a plan you already have, try what can my speed handle, and if you stream or back up a lot, the upload speed calculator goes deeper on upload.
Frequently asked questions
What plan does a family of four working from home need?
Usually 100 Mbps is plenty. A family of four with two people on 1080p video calls, one 4K stream, one 1080p stream, one online gamer and ten idle devices peaks at about 39 Mbps down and 8 Mbps up. With 30% headroom that is about 50 Mbps down and 10 Mbps up, so 100 Mbps covers the download; look for an upload above 10 Mbps.
How much internet speed do I need per person?
Per-person rules are rough. What matters is what people do at the same moment: a 4K stream needs about 20 Mbps, a 1080p video call 3.8 Mbps down and 3 Mbps up, and browsing about 1 Mbps. Add up the busiest moment and allow some headroom.
Do I need gigabit internet?
Most households do not for streaming and calls. Gigabit mainly shortens large downloads: a 100 GB game takes about 13 minutes at 1 Gbps against about 44 minutes at 300 Mbps, before overhead.
Does upload speed matter?
Yes, for video calls, live streaming, cloud backups and security cameras. A 1080p Zoom call sends about 3 Mbps and a 1080p60 Twitch stream up to 6 Mbps, and several of these at once can fill the upload on plans with little upload capacity.
My plan is fast enough but everything still feels slow. Why?
It is usually Wi-Fi, an old router or the device. Run a speed test on a cable and then on Wi-Fi, and compare both results with your plan in the speed test checker.
Related tools
From a plan speed to how many streams, calls and games it runs at once.
Upload speed calculatorAdd up streams, calls, cameras and backups to find the upload speed you need.
Speed test checkerCompare a speed test result with your plan and find out whether it is normal.
Speed by activityMbps per stream, call and game from official sources, with GB per hour.