Tool for Calculating Bandwidth
Live Streaming Bandwidth Calculator
A free streaming bandwidth calculator that turns viewers, duration and bitrate into GB and TB of data usage before you go live.
Total bandwidth
203 GB
Data per viewer
2.03 GB
Total viewing minutes
6,000
We use decimal units (1 GB = 1,000 MB).
How to Use the Bandwidth Calculator
Estimate your data usage in three quick steps before you go live.
Enter your bitrate
Enter your stream bitrate. Not sure what it is? Use our free Bitrate Calculator.
Add viewers and duration
Enter your number of viewers and how long you’ll stream.
See your bandwidth
See your total bandwidth usage.
Ready to Go Live?
Multistream to 2 destinations free, no credit card. Choose from 45+ integrations.
How Much Data Does Streaming Use?
How Much Data Does Streaming Use?
Here’s the video streaming data usage for one viewer in one hour. Multiply by your viewers and hours to estimate your total.
| Video bitrate | Example use | Data per viewer-hour |
|---|---|---|
| 1,000 kbps | Lower quality, mobile-friendly | 0.45 GB |
| 3,000 kbps | 720p at 30 fps | 1.35 GB |
| 4,500 kbps | 1080p at 30 fps | 2.03 GB |
| 6,000 kbps | 1080p at 60 fps | 2.7 GB |
| 15,000 kbps | High-bitrate streams, such as 4K | 6.75 GB |
We use decimal units (1 GB = 1,000 MB). Some providers count 1 GB as 1,024 MB, so their numbers may look about 7% lower.
How Streaming Bandwidth Is Calculated
Wondering how much bandwidth you need? Every viewer downloads your stream at its bitrate for as long as they watch:
Bandwidth = bitrate × viewers × watch time
Example: 100 viewers watch a 60-minute stream at 4,500 kbps.
- Each viewer uses about 2.03 GB.
- 100 viewers use about 203 GB in total.
- That’s 6,000 viewing minutes (100 viewers × 60 minutes).
Mbps to GB: A Quick Conversion
Mbps is a speed. GB is an amount of data. To convert one to the other, you need time.
- 1 Mbps for one hour = 0.45 GB.
- Quick rule: GB per hour = Mbps × 0.45
Watch the letters: “b” means bits and “B” means bytes. Mixing them up makes your estimate 8 times off.
Upload vs Delivery Bandwidth
Upload vs Delivery Bandwidth
Your stream uses two kinds of bandwidth, and only one grows with your audience.
Upload bandwidth
Carries one copy of your stream to the streaming server. It stays the same whether 10 or 10,000 people watch.
Delivery bandwidth
Carries a copy to every viewer, so it grows with your audience. This is what the calculator estimates.
Slow Upload? How to Increase Bandwidth
Slow Upload? How to Increase Bandwidth
Simple fixes that give your stream more room before you go live.
Use wired connection
An Ethernet cable is more stable than Wi-Fi.
Free up network
Pause downloads, updates and videos on other devices.
Multistream from cloud
Send one stream instead of one per platform.
Upgrade your plan
If you stream often, choose a plan with a higher upload speed.
Tips for Lower Bandwidth Usage
Tips for Lower Bandwidth Usage
Small changes that cut your data use without hurting quality.
Lower your bitrate
Data use rises and falls with bitrate.
Pick the right resolution
720p often looks great for talks, webinars and church services.
Use adaptive bitrate
Viewers only get the quality their connection can handle.
Estimate every stream
Add them up to see your monthly total.
More Tools for Live Streaming
Free tools to test your setup, convert files and plan your stream.
Check your mic input level live. Find out if your audio is too quiet, too loud, or just right.
See exactly what your camera shows before you go live. Check resolution, frame rate, lighting and framing.
Find the right bitrate for your resolution and frame rate. Avoid a blurry or buffering stream.
WAV Converter
Coming soon
Convert audio to WAV for full quality. Useful for editing and for adding sound to your streams.
Audio Extractor
Coming soon
Pull the audio track out of any video. Reuse a stream or a talk as a podcast or clip.
Audio Remover
Coming soon
Strip the sound from a video in one step. Add your own music or voice-over afterward.
MP3 Converter
Coming soon
Turn audio and video files into MP3. Good for podcasts, intros and background music.
Video Converter
Coming soon
Change your video to the format you need, such as MP4. Make files ready to upload or schedule.
Frequently Asked Questions
Frequently Asked Questions
Have a question about bandwidth? We’ve got answers.
What is bandwidth?
Bandwidth is the most data a connection can carry each second, measured in Mbps. In live streaming, it also means the total data delivered to your viewers, measured in GB or TB.
Is this bandwidth calculator free?
Yes. The bandwidth calculator is free to use, with no sign-up, email or download needed.
Bandwidth vs speed: what’s the difference?
Bandwidth is how much data your connection can carry at once, like the number of lanes on a road. Speed is how fast your data actually moves at any moment.
How much data does streaming use per hour?
Multiply your bitrate in Mbps by 0.45 to get GB per viewer, per hour. A 1080p stream at 6,000 kbps uses about 2.7 GB per viewer-hour.
What internet speed do I need for streaming?
To go live, set your bitrate to about 75% of your upload speed. Use our Bitrate Calculator to find the right number. To watch in HD, Netflix recommends at least 5 Mbps for 1080p.
