Is it normal for upload speed to be slower than download?

Yes, on connection types where the maximum upload speed is lower than the download speed, such as cable, mobile networks and ADSL. Some fiber plans have the same maximum speed in both directions, so if only your upload is much slower on fiber, suspect Wi-Fi or other uploads running at the same time.

What upload speed do I need for Zoom meetings?

Zoom's official help says 3.8 Mbps upload for 1:1 meetings at 1080p and 2.6 Mbps upload for group meetings at 720p. If other people use the same connection at the same time, aim for 5 Mbps or more to leave some headroom.

What upload speed do I need for live streaming?

YouTube Live's recommended bitrate is 14 Mbps for 1080p at 30 fps and 8 Mbps for 720p (with H.264). Your connection's upload speed needs headroom above that, so check your measured result before choosing a quality level in your streaming software.

What should I check if only my upload speed is slow?

First, test again over a wired connection to see whether Wi-Fi is the cause. Next, pause uploads from other devices, such as automatic photo sync and backups, and test again. If it is still slow, check the maximum upload speed of your plan and your router settings.

What Is a Good Upload Speed? And Why Upload Is Slow

Published: 2026-11-12 ／ Author: Yuki Nakazawa

When people run a speed test, they usually look at the download number first. But when you are sending something from your own device, such as your camera feed in a video call or photos syncing to the cloud, the number that matters is the upload speed.

In this article you will find: the situations where upload speed matters, how much upload speed you need for each use, why upload is often slower than download, what to check when only your upload is slow, and how long it takes to send a large amount of data. The guidelines here use the same thresholds as the results screen of this site's speed test.

When your upload speed matters

Upload speed is how fast your device can send data to the internet. It is measured in Mbps (megabits per second). For what all four numbers in a speed test mean, including download, ping and jitter, see internet speed guidelines.

Upload speed matters mainly in the following situations.

Camera video in online meetings: your video and audio are sent to the other participants the whole time. If your upload is too slow, other people may see your video turn blurry or freeze.
Live streaming and game streaming: streaming software keeps sending video at a fixed bitrate (the amount of data sent per second). If your upload cannot keep up, the stream may drop frames.
Cloud backup and photo or video sync: automatic photo uploads from your phone and PC backups take longer the more data there is, and your upload speed decides when they finish.
VPN for remote work: a VPN is a way to connect securely to your company's network. Saving and sending documents and sharing your screen all use upload.
Posting to social media and video sites: uploading a video file takes much longer when your upload speed is low.

In short, any time you are the one sending, upload speed is the number to look at.

What is a good upload speed? (the thresholds this site uses)

This site rates your upload result using the thresholds below. They are the same numbers used in the other articles and on the results screen.

Upload result	Rating	What you can expect
Under 5 Mbps	Insufficient	Fine for email, text posts and photos on social media. Camera video in meetings and live streaming will be difficult
5–10 Mbps	Standard	Camera video in meetings works. Sending large files takes time
10 Mbps or more	Sufficient	You can send files or run backups while in a meeting. The higher the number, the sooner uploads finish

If several people in your home are in meetings or syncing at the same time, add up what each person needs. The full table of guidelines by use, including download, is in internet speed guidelines.

Upload speed needed by use (published figures from each service)

These are the upload (sending) figures given in the official help pages of major services (checked on 2026-11-12). Each value is per device or per stream.

Use / service	Official recommendation (upload / sending)
Zoom (video meetings)	3.8 Mbps for 1:1 at 1080p, 2.6 Mbps for group at 720p
Microsoft Teams (meeting video)	2.5 Mbps recommended, 4.0 Mbps for best performance
Google Meet	Up to 3.6 Mbps for 1080p video
YouTube Live (720p, 30/60 fps)	Recommended bitrate 8 Mbps (minimum 3 Mbps)
YouTube Live (1080p, 30 fps)	Recommended 14 Mbps (minimum 5 Mbps)
YouTube Live (1080p, 60 fps)	Recommended 17 Mbps (minimum 6 Mbps)
YouTube Live (4K, 60 fps)	Recommended 50 Mbps (minimum 14 Mbps)

The YouTube Live figures are encoder settings for streaming with H.264, meaning the bitrate you set in your streaming software. Your connection's upload speed needs some headroom above that bitrate, because upload speed does not always stay constant during a stream.

Meetings need roughly 2.5–4 Mbps, so an upload speed of 5 Mbps or more (Standard) is enough for one person. For 1080p live streaming, even 10 Mbps or more (Sufficient) may fall short of YouTube Live's recommended bitrate, so compare your measured upload speed with your streaming software settings before you decide on a quality level. Guidelines that combine meetings and video watching are covered in internet speed for video and meetings.

Why upload is often slower than download

Most people receive far more data than they send, so internet connections are sometimes designed to favor download. A connection type where the maximum upload and download speeds differ is called asymmetric.

ADSL: a connection over telephone lines. The A stands for Asymmetric, and the word is part of the name of the international standard (ITU-T G.992.1).
Cable internet: connections over the coaxial cable used for TV have some plans where the maximum upload speed is lower than the maximum download speed. Check the "maximum upload" line of your plan.
Mobile networks and home routers that use mobile data: because they communicate over radio, upload often comes out slower than download. Upload speed also tends to change more with signal conditions.
Fiber: some plans offer the same maximum speed in both directions. In Japan, for example, one 10 Gbps fiber service advertises the same "approximately 10 Gbps maximum" for both upload and download. Note that this is the maximum under the technical standard, and the service is best effort (speed is not guaranteed).

So if you are on fiber and your upload is much slower than your download, the cause may be your home equipment or how the connection is being used, rather than the type of connection itself.

Why is my upload speed so slow? Common causes

If download looks fine but only upload is slow, check the following in order.

Cause	How to check	What to do
Weak Wi-Fi signal	Test again near the router, or over a wired connection	Switch to the 5 GHz band, move the router, or use a cable
Other devices uploading at the same time	Pause automatic photo sync, cloud backup and security cameras, then test	Schedule syncing for nighttime
Router QoS (traffic prioritization) or bandwidth limits	Look in the router's settings for any upload limit	Remove limits you do not need
Device-side issues (VPN, security software, old Wi-Fi standard)	Turn off the VPN, or test on a different device	Compare devices under the same conditions
Connection type (cable, mobile, VDSL)	Check the maximum upload speed of your plan	If you are close to the plan's limit, it is how the connection is designed

A wired test is the quickest way to rule out Wi-Fi, so it is worth doing first. For a complete guide to narrowing down the cause, see causes of slow internet.

How long it takes to upload 100 GB

The time a backup or video upload takes is the amount of data divided by your upload speed. 1 GB is 8,000 Mbit (megabits), so 100 GB is 800,000 Mbit.

Formula: time (seconds) = 800,000 Mbit ÷ upload speed (Mbps)

Upload speed	Calculation	Time for 100 GB
5 Mbps	800,000 ÷ 5 = 160,000 seconds	About 44 hours
10 Mbps	800,000 ÷ 10 = 80,000 seconds	About 22 hours
30 Mbps	800,000 ÷ 30 ≈ 26,667 seconds	About 7.4 hours
100 Mbps	800,000 ÷ 100 = 8,000 seconds	About 2.2 hours
1,000 Mbps	800,000 ÷ 1,000 = 800 seconds	About 13 minutes

These are theoretical values that assume your full upload speed is used the entire time. In practice, some data goes to controlling the connection itself, and the cloud service may limit how fast it accepts data, so uploads can take longer than this. Running your first full backup overnight, or otherwise at a different time of day, helps avoid slowing down your meetings.

How to run an accurate upload speed test

Upload speed can be affected by Wi-Fi, so if you want to know what your connection itself can do, test from a PC connected with a cable. Before testing, pause any uploads running in the background, such as photo sync or backups. Test several times at different times of day and compare the results to see the pattern.

This site's speed test measures upload after download. It has no ads or third-party trackers and runs on the open-source LibreSpeed (LGPLv3). It automatically picks the server with the lowest ping from our own server in Sapporo and 37 public mirrors around the world (from Honshu, usually "Tokyo").

FAQ

What is a good upload speed?: By this site's thresholds, 10 Mbps or more is Sufficient and 5–10 Mbps is Standard. If you only need camera video in online meetings, 5 Mbps or more is a good guideline. For live streaming, even 10 Mbps or more may not be enough depending on the quality, so compare with your streaming software settings. For sending large files, the higher the number, the sooner they finish.
Is it normal for upload speed to be slower than download?: Yes, on connection types where the maximum upload speed is lower than the download speed, such as cable, mobile networks and ADSL. Some fiber plans have the same maximum speed in both directions, so if only your upload is much slower on fiber, suspect Wi-Fi or other uploads running at the same time.
What upload speed do I need for Zoom meetings?: Zoom's official help says 3.8 Mbps upload for 1:1 meetings at 1080p and 2.6 Mbps upload for group meetings at 720p. If other people use the same connection at the same time, aim for 5 Mbps or more to leave some headroom.
What upload speed do I need for live streaming?: YouTube Live's recommended bitrate is 14 Mbps for 1080p at 30 fps and 8 Mbps for 720p (with H.264). Your connection's upload speed needs headroom above that, so check your measured result before choosing a quality level in your streaming software.
What should I check if only my upload speed is slow?: First, test again over a wired connection to see whether Wi-Fi is the cause. Next, pause uploads from other devices, such as automatic photo sync and backups, and test again. If it is still slow, check the maximum upload speed of your plan and your router settings.

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What Is a Good Internet Speed? How to Read Speed Test Results
What download, upload, ping and jitter mean on a speed test, with tables of good internet speeds by activity and connection type, and what to do next.
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