ee35ba00_iation_Data_Base_User_s_Manual_Table_A_1__Conversion_Factors_To_Convert_From
[Into] Btu's per square foot [Multiply By] 0.3172 [To Convert From] 
watt-hours per square meter
w a t t - h o u r s p e r s q u a r e m e t e r
d e g r e e C e n t i g r a d e
m i l l i b a r s
d e g r e e s ( a n g l e )
m e t e r s p e r s e c o n d
m e t e r s
National Solar Radiation Data Base User's Manual
To Convert From