problem in understanding the hmc5883l output

Other Hardware Sensors
4

how did you calculate 2.76G??

No idea, but I know how I calculated 0.276G :wink:

LSB = 2mG

x = 55 = 110mG
y = 87 = 174mG
z = 92 = 184mG

sqrt(x^2+y^2+z^2) = 276mG = 0.276G