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).
Closest Airport to Miami, FL. The closest airport is Miami International Airport (MIA). Distance from Miami International Airport to Miami is 9,9 kilometers (6,2 miles). Miami International Airport is located approximately 4,3 kilometers (2,7 miles) northeast of Flagami and about 5,4 kilometers (3,4 miles) north of Coral Terrace. Miami International Airport IATA code is MIA.