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!



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.
How big is a 15-minute 1080p25 movie in ProRes 4444?
Click on video >> bitrates
Look up 1080p25: 275 Mbps. Click on the 2.06 GB/min and fill in 15 minutes. This adds up to 30.9 GB!
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.
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
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.
This motor cycle does 185 km/h. What is that in miles/hr, and in meter/sec?
Click on calculate >> speed
Fill in 180 km/hr. This translates to 115 miles/hr, and 51.39 meter/sec.
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.
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 20000 $, 4 years and the current interest rate, e.g. 1.9%. This gives a monthly payment of $433 (FRM).
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)