thank you so much for this, didnt know they had such a gracious free tier. The only thing I saw was "Outbound Data Transfer: 10 TB per month." but you are absolutely right, it isn't spelt out directly.
Ah ok I think I remember that and I wasn’t sure it that was linked to the LB service or the VMs. Perhaps/likely it’s either/both. In any case, wow 10TB is awesome. I think Google Cloud’s Free Tier transfer limit is 1G, which is one of the reasons I powered it down (the other being they started charging for external IP’s on the free tier compute instances).