Calculate download time based on speed and file size

Toggle navigation. Calculator Planner More Info About. Only that the first would be subject to deviations in the momentary speed, and the latter wouldn't adapt well to altering speeds.

Must be some smarter way to do that, right? Take a look at the pirated software and music you currently download with uTorrent. It's easy to notice that it does more than the simple calculation mentioned before. Actually, I notices that sometimes when the dl speed drops, the time remaining also drops for a couple of moments until it readjusts. Well, as you said, using the absolutely current download speed isn't a great method, because it tends to fluctuate.

However, something like an overall average isn't a great idea either, because there may be large fluctuations there as well. Consider if I start downloading a file at the same time as 9 others. Now I'm downloading at 10x the speed I started at. Personally, I'd probably take an average over the last 30 seconds or so, and use that.

That should do calculations based on recent speed, without fluctuating wildly. Another option would be to set a sort of "fluctuation threshold", where you don't do any recalculation until the speed changes by more than that threshold. If one of those changes happens, the time is recalculated and a new threshold is set.

You could use an averaging algorithm where the old values decay linearly. In English, this means that the longer in the past a measurement occurred, the less it matters because its importance has decayed.

The obvious way would be something in between, you need a 'moving average' of the download speed. What you could do also is keep track of your average speed and show a calculation of that as well. I sample the download speed momentarily every second is a good interval , and increment the coresponding array item by one.

Now I know how many seconds I have spent downloading the file at each speed. The sum of all these values is the elapsed time in seconds. The sum of these values multiplied by the corresponding speed is the size downloaded so far.

If I take the ratio between each value in the array and the elapsed time, assuming the speed variation pattern stabalizes, I can form a formula to predict the time each size will take. This size in this case, is the size remaining.

That's what I do: I take the sum of each array item value multiplied by the corresponding speed the index and divided by the elapsed time. Secondly your file size. Download calculator will help you to estimate download time for your file. In order to know how long will the download take, you need to enter the size of your file. You will see estimated download time for your file on multiple connections. To know your internet speed, you can use speedtest. According to your current speed, It would take you about.

NOTE: Read our information on how download transfer works to get better overview. NOTE : The download time calculator is used for estimating download time for a file. It is just an estimation. If you use your internet frequently for browsing, downloading, and live streaming, this bandwidth calculator will prove very useful.

Here are the steps to follow:. Aside from using the bandwidth calculator, you can also calculate bandwidth manually. This is a simple process which can help make your downloading and web-browsing easier. When you know how much bandwidth you have, you can determine the size of the website you plan to host. Also, you will have an idea of the internet settings to use and how long uploading, downloading, and transferring files will take. Here are some steps to follow when calculating bandwidth:.