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
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)
If I can drive at 95km/hr on average, how far can I get in 16 hours of driving? Click on
calculate >> distance Fill in
95 km/hr and
16 hours. This will give you 1520 km or 944 mile of distance.
I want to print a 50x70cm poster at 300dpi, what pixel resolution do I need? Click on
photo >> dpi Fill in
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
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
7 days/week and
52 weeks. You will find it would take you 9.2 years.
If I borrow $20.000 to buy a car, and I pay that off in 4 years, how much do I pay per month? Click on
finance >> mortgage Fill in
4 years and the current interest rate, e.g.
1.9%. This gives a monthly payment of $433 (FRM).