Jeff wrote in
:

I've posted a bunch of numerical converters such as lengths, weighs,
areas, volumes (& liquid measures), even Roman numerals that you might
find useful in HVAC, home repair, and so on. They're at
www.jeffsutilities.com. Have fun.

At the Google search bar you can type in any conversion you want using
"to" in between. Calculations too.

615 to roman
615 = DCXV

41000 sq ft to acres
41 000 (sq feet) = 0.941230487 acres

sqrt 3
sqrt(3) = 1.73205081

sqrt 3 * pi
sqrt(3) * pi = 5.44139809

2 pounds to dollars
2 British pounds sterling = 3.0818 US dollars

7 pounds to kg
7 pounds = 3.17514659 kilograms

20 dollars to euros
20 US dollars = 14.6724 euros