Term RMS refers to the mathematical Root Mean Square which is an average of peaks and valleys of a materials surface profile. Ra stands for roughness average. Ra is a average of only peaks; therefore, to get an Ra, multiple your 3.2 to 6.3 by 2 to get 6.4 to 12.4 Ra. AF Kenton.
Closest Airport to Siesta Key, FL. The closest airport is Sarasota Bradenton International Airport (SRQ). Distance from Sarasota Bradenton International Airport to Siesta Key is 10,4 kilometers (6,5 miles).
Driving distance from Siesta Key, FL to Tampa Bay. The total driving distance from Siesta Key, FL to Tampa Bay is 71 miles or 114 kilometers. Your trip begins in Siesta Key, Florida. It ends in Tampa, Florida. If you are planning a road trip, you might also want to calculate the total driving time from Siesta Key, FL to Tampa Bay so you can see when you'll arrive at your destination.