Toolstud.io calculation examples

This website contains a bunch of web-based tools that I have developed through the years. These are some examples of how to use them. This page gives you 10 examples at random. Refresh the page to see other examples!

How could you use these tools?

If I'm showing an HD video on a scope screen, how much of the screen am I using?
Click on photo >> aspect
Fill in 1920 x 1080, look at "scope screen" letterboxing: 74.4% is used.
My mobile 4G data allowance is 5GB/month. How much is that per day or per hour?
Click on data >> bandwidth
Fill in 5GB/mo. This is equivalent with 167MB/day or 7MB/hr
At home I have Internet at approx. 120Mbps. How long to take to download a 2GB Wetransfer file?
Click on data >> bandwidth
Fill in 120 Mbps. This is equivalent to 900MB/min. So 2GB would go through in 2.2 minutes.
What is the RGB color #F60 in CMYK?
Click on color >> rgb
Fill in F60. In CMYK this would be (0, 0.6, 1, 0)
I want to print a 50x70cm poster at 300dpi, what pixel resolution do I need?
Click on photo >> dpi
Fill in 50 cm, 70 cm and 300dpi, and you get 5907px x 8268px
Radioactive decay of Carbon-14
Click on calculate >> exponential
Carbon-14 has a half-life of 5730 years
Exponential growth of virus COVID-19 in USA
Click on calculate >> exponential
There were 1714 people infected in the US on 15 March 2020, and over 100.000 14 days later.
I have a 30-second TV commercial at 25fps, what happens if I convert it to 24fps (cinema)?
Click on video >> framerate
Fill in 25 (input) fps, 30 sec and 24 (output) fps. Results: your cinema spot will be 31.25 sec.
I can write to my USB stick at 13 MB/s. So how much can I write in 15 minutes?
Click on data >> filesize
Fill in 13 MB/s and 15 minutes. This will give you 11.7 GB in those 15 minutes.
If I practice my violin for 3 hours every day, how long until I reach (Gladwell's) 10.000 hours level of excellence?
Click on calculate >> practice
Fill in 3 hours, 7 days/week and 52 weeks. You will find it would take you 9.2 years.