Cost in USD (from "asia-southeast1")	Cloud SQL (PostgreSQL)	AlloyDB	Cloud Spanner (PostgreSQL interface)
Per vCPU month	On demand - $42.194 1 year commitment - $31.6455 3 year commitment - $20.25312	$59.33	NA
Per HA vCPU month	On demand - $84.388 1 year commitment - $63.291 3 year commitment - $40.50624	$118.66 (checked from pricing calculator)
Per Memory (GB) month	On demand - $7.154 1 year commitment - $5.3655 3 year commitment - $3.43392	$10.06
Per HA Memory (GB) month	On demand - $14.308 1 year commitment - $10.731 3 year commitment - $6.86784	$20.12 (checked from pricing calculator)
Per Node (1000 computing units each) month	NA		Regional - $751.9 Regional + 1 year commitment - $601.52 Regional + 3 year commitment - $451.14 Multi-Regional - $2847 Multi-Regional + 1 year commitment - $2277.6 Multi-Regional + 3 year commitment - $451.14
Per Storage (GB) month	SSD - $0.238 HA SSD - $0.476 HDD - $0.126 HA HDD - $0.252	$0.37	Regional - $0.34 Multi-regional - $0.65
Per Backup storage (GB) month	$0.112	$0.12	Regional - $0.1 Multi-regional - $0.5 - $0.9
Network (Ingress)	Free	Free	Free
Network (Egress)	To Compute Engine - Same region: Free To Compute Engine - Between regions within North America: $0.12/GB To Compute Engine - Between regions outside of North America: $0.12/GB To other GCP Services - Intra-continental: Free To other GCP Services - Inter-continental: $0.12/GB	To same region (GCP Services) - Asia: $0.08/GB [Lowest] To same region (GCP Services) - Northern America: $0.02/GB [Highest] To Latin America region (GCP Services) from Asia: $0.14/GB	To same region - Asia: Free To different region but within the US: $0.01/GB To different region (not within the US): At Internet egress rate, $0.08 - $0.23, depending on total monthly usage for egress volume and the involved regions

*All information is accurate as of Sep 2022