Download Time Calculator

Calculate the Time Needed to Download/Upload a File

Download Time Calculator

How long will it take to complete a file download given a specific Internet download speed?

Use the Download Time Calculator to accurately calculate the time needed to download a file for multiple Internet connection speeds. Enter the downloaded file size in the field below and specify the file size measure units in the drop-box.

Check also the free online File Size calculator and converter. Test your download speed at SpeedTest.NET.

Downloading 100 Gigabytes at 10 Mbps takes 22h 13m 20s

Connection Speed Time (DD:HH:MM:SS)
9.6 Kbps
14.4 Kbps
28.8 Kbps
33.6 Kbps
56 Kbps
64 Kbps (ISDN)
128 Kbps (ISDN-2)
256 Kbps
512 Kbps
1.024 Mbps
1.544 Mbps (DS1, T1)
2.048 Mbps (E1, ISDN-32)
Connection Speed Time (DD:HH:MM:SS)
10 Mbps (10Base-T)
25.6 Mbps (ATM25)
34 Mbps (E3)
45 Mbps (DS3, T3)
51 Mbps (OC1)
100 Mbps (100Base-T)
155 Mbps (OC3)
622 Mbps (OC12)
1 Gbps (1000Base-T)
2.4 Gbps (OC48)
10 Gbps (OC192)
100 Gbps

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Compatible with Windows 11/10/8.1/8/7/Vista (Both 32 & 64 Bit)

Table of contents:

  1. Definition of "Download"
  2. What is Download Time?
  3. What is Download Speed?
  4. How to Calculate Download Time Automatically?
  5. How to Calculate Download Time Manually?
  6. How Long to Download 100GB Game?
  7. How Long Does it Take to Download 1 GB
  8. Internet Connection Types
  9. How Much Internet Speed do I Need?

Definition of "Download"

To download means to receive a file from the Internet. Such files typically are downloaded from a web server such as HTTP, FTP, mail server, or other. In contrast, upload means transferring a file to a remote server. The term "download" may also refer to a file that is offered for downloading, has been downloaded or the actual process of transferring the file.E.g. "A download is available on the product page.", "This is a very large download.", "A download is running so I will make a coffee."

Downloading transfers files for local use and storage. Do not mistake this with streaming, where the data is used immediately, while the transmission is in progress. Such data usually is not stored long-term. Streaming usually is used to display video or audio in a web browser or application. For example, YouTube is a video streaming service. Such streaming services even prevent the storage and use of the downloaded data.

Please note that downloading is not the same as data transfer. The term "data transfer" is used to denote moving or copying data between storage devices. Receiving data from the Internet is downloading. The duration of the download is known as download time.

What is Download Time?

Download time is the time needed to transfer a file from the Internet to a local computer, phone, tablet, or another Internet-connected device. The download time is determined by the connection speed between the two devices and the size of the transferred file. The connection speed is determined by the hardware capabilities of the two devices and also the ISP (Internet Service Provider) that they use. A faster connection speed will result in a faster download and shorter download time. Of course, a smaller file will require a shorter download time too.

What is Download Speed?

Download speed is the amount of data that is transferred per second between two Internet-connected devices. It may be expressed in various units which are multiples of a BIT - the smallest unit in computers. Those are bits, Kilobits, Megabits, Gigabits, and so on. To convert Kilobits to Megabits you have to divide them by 1024. To convert the Megabits to Gigabits you have to divide them into 1024 again and so on.

The download speed is determined by your service provider and the hardware limits of the connection. For example, the highest download speed of a 100Base-T connection is 100 Megabits. Of course, that speed is the maximum that can be reached on such hardware and may be slower based on the Internet plan that you have signed for.

The download and upload speeds are usually different. In most cases, the upload speed is much slower than the download speed. If the two are equal we call such connection symmetric. If the connection is not "shaped" (limited) by an ISP it is symmetric by default. Please note that the above test is not always correct. IS providers usually detect where your computer connects and provide higher speeds for tests if they detect that you are trying to test your connection speed. Use the Download Time Calculator above to enter your file size and calculate the time needed for the transfer. Multiple Internet connection speeds are listed and you can see the ones that are close to yours.

How to Calculate Download Time Automatically

To calculate the download time using the download time calculator, enter the file size in the edit field and select the measure units from the drop-down box on the right - bits, bytes, kilobytes, megabytes, gigabytes, terabytes, petabytes, exabytes, zettabytes, or yottabytes. The time needed to download or upload the file will be calculated automatically for multiple connection speeds. You can view all the download times in the table below the download time calculator.

How to Calculate Download Time Manually

To calculate download time manually you have to divide the file size by the connection speed. The more difficult part is that you have to convert the speed and time units to the desired ones. All the download speeds are in bits per second e.g. Mbps is Megabits per second, Gbps is Gigabits per second. In the above calculation those seconds are converted to days, hours, minutes and seconds for easier reading. To convert the seconds to minutes you have to divide them by 60 (seconds in a minute) and the whole part will be minutes and the fractional part that is left is the seconds.

How Long to Download 100GB Game

The time it takes to download a 100GB game depends on several factors, including your Internet connection speed. The download speed is typically measured in megabits per second (Mbps) or gigabits per second (Gbps). Here's a rough estimate:

Download Speed:

These are just rough download time estimates, and actual download times may vary. Additionally, other factors like network congestion, the efficiency of the server distributing the game, and any throttling imposed by your Internet service provider can also affect download speeds.

It's important to note that these download estimates assume a consistent and uninterrupted download speed, which may not always be the case. If your Internet connection fluctuates or if there are interruptions during the download, it may take longer.

To get a more accurate estimate, you can use online tools that measure your current Internet speed. Keep in mind that download speeds are usually expressed in megabits per second (Mbps), so you may need to convert the game size to megabits (divide the size in gigabytes by 0.125) to compare with your Internet speed.

How Long Does it Take to Download 1 GB

The time it takes to download a specific amount of data is influenced by the speed of your Internet connection. Internet speeds are measured in megabits per second (Mbps) or gigabits per second (Gbps), and they play a crucial role in determining the download duration. To provide a sense of scale, downloading 1 GB of data at varying speeds results in significantly different time-frames. A basic understanding of these estimates can help users gauge how long they might need to wait for downloads to complete based on their Internet connection. From sluggish connections taking hours to lightning-fast gigabit speeds reducing the wait to mere seconds, the download time is a direct reflection of the efficiency and capacity of one's Internet infrastructure.

These are rough estimates and actual download times may vary based on various factors such as network conditions and server responsiveness.

Internet Connection Types


DSL (Digital Subscriber Line):




Fixed Wireless:

Mobile Data (3G, 4G LTE, 5G):



This list provides a clear structure for understanding different Internet connection types and their associated speed ranges.

How Much Internet Speed do I Need?

The appropriate Internet speed for you depends on your specific needs and usage patterns. Different online activities require varying amounts of bandwidth. Here are some general guidelines to help you determine how much Internet speed you might need:

Basic Browsing and Email

Speed Recommendation: 1 to 5 Mbps
Suitable for basic web browsing, sending emails, and light online activities.

Streaming Standard Definition (SD) Video

Speed Recommendation: 3 to 10 Mbps
Suitable for streaming standard-definition video on platforms like Netflix, Hulu, or YouTube.

Streaming High Definition (HD) Video

Speed Recommendation: 5 to 15 Mbps
Suitable for streaming high-definition video content.

Online Gaming

Speed Recommendation: 10 to 50 Mbps
Suitable for online gaming with a reasonable ping and minimal lag.

Working from Home (Video Conferencing)

Speed Recommendation: 5 to 20 Mbps
Suitable for smooth video conferencing and file uploads/downloads.

Multiple Devices Simultaneously

Consider higher speeds if multiple devices in your household will be using the Internet simultaneously for various activities.

4K Video Streaming

Speed Recommendation: 25 Mbps or higher
Suitable for streaming ultra-high-definition (4K) video content.

It's essential to note that these recommendations are approximate and can vary based on the number of users, devices, and specific online applications you use. If you're unsure about your Internet needs, you can contact your Internet service provider (ISP) for personalized advice or consider starting with a mid-tier plan and adjusting based on your experiences.

Also, consider factors like data caps, reliability, and customer support when choosing an Internet plan. Keep in mind that advancements in technology or changes in your usage patterns may influence your Internet speed requirements over time.