Convert 4 Btu (th) to Gigaton: 4 Btu (th) in Gigaton
This calculator allows you to convert from Btu (th) to Gigaton and in a reverse direction. To convert from Btu (th) to Gigaton, enter the amount of Btu (th) into the first input and to convert from Gigaton to Btu (th), enter the amount of Gigaton into the second input.