Cloud NAT pricing
Cloud NAT pricing for Public NAT and Private NAT is based on the following usage.
Public NAT
For Public NAT, the total cost for running a NAT gateway and running traffic through it includes the hourly cost for the NAT gateway plus all the following additional costs:
- The cost per GiB of data that is processed by the gateway
- The hourly cost for the external IP addresses used by the gateway
- The data transfer out costs for any traffic leaving the network
Public NAT pricing is based on the following usage:
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An hourly price for the NAT gateway that is based on the number of virtual machine (VM) instances that are using the gateway. The per-hour rate is capped at 32 VM instances. Gateways that are serving instances beyond the maximum number are charged at the maximum per-hour rate.
Google Cloud counts VM instances that get a NAT assignment as using the gateway. The NAT gateway performs source NAT (SNAT) for data transfer traffic from resources that don't have external IP addresses, and destination NAT (DNAT) for ingress packets that arrive as responses to outbound packets.
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A per-GiB cost for data transfer that is processed by the gateway. The data processing price is the same across all regions. Data transfer costs to send traffic from the VM out of the network also apply.
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An hourly price for each static or ephemeral external IP address that is used by a NAT gateway.
| Number of assigned VM instances | Price per hour for NAT gateway | Price per GiB processed, inbound and outbound data transfer | Price per hour for a static or an ephemeral external IP address used by a NAT gateway |
|---|---|---|---|
| Up to 32 VM instances | $0.0014 * the number of VM instances that are using the gateway | $0.045 | $0.005 |
| More than 32 VM instances | $0.044 | $0.045 | $0.005 |
If you pay in a currency other than USD, the prices listed in your currency on Cloud Platform SKUs apply.
Private NAT
For Private NAT, the total cost for running a NAT gateway and running traffic through it includes the hourly cost for the NAT gateway plus all the following additional costs:
- The cost per GiB of data that is processed by the gateway
- The service costs for allowing traffic to leave the network through Cloud Interconnect, Cloud VPN, or Network Connectivity Center
Private NAT pricing is based on the following usage:
-
An hourly price for the NAT gateway that is based on the number of VM instances that are using the gateway. The NAT gateway performs private source NAT (SNAT) for data transfer traffic from resources covered under the NAT gateway, and destination NAT (DNAT) for ingress packets that arrive as responses to outbound packets.
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A per-GiB cost for data transfer that is processed by the gateway. The data processing price is the same across all regions. Cloud Interconnect, Cloud VPN, and Network Connectivity Center data costs to send traffic from the VM out of the network also apply.
| Price per hour for NAT gateway | Price per GiB processed, inbound and outbound data transfer |
|---|---|
| $0.045 | $0.045 |
Pricing examples
The following table shows the estimated monthly cost for a single NAT gateway that uses NAT IP addresses to serve a different number of VM instances. For both Public NAT and Private NAT, the gateway runs for 720 hours in a billing cycle.
| Variant | Usage | Estimated bill |
|---|---|---|
| Private NAT | 4 VM instances Gateway uses 1 RFC 1918 subnet Gateway processes 200 GiB of traffic (data transfer) |
($0.045 * 720 hours) + 0 (private IP addresses are free) + (200 GiB processed traffic * $0.045) = $41.4 |
| Public NAT | 14 VM instances Gateway uses one external IP address Gateway processes 100 GiB of traffic (data transfer) |
($0.0014 * 14 instances * 720 hours) + ($0.005 * 1 external IP addresses * 720 hours) + (100 GiB processed traffic * $0.045) = $22.21 |
| Public NAT | 36 VM instances Gateway uses two external IP addresses Gateway processes 200 GiB of traffic (data transfer) |
($0.044 * 720 hours) + ($0.005 * 2 external IP addresses * 720 hours) + (200 GiB processed traffic * $0.045) = $47.88 |
SKU groups - NAT gateway
| Variant | SKU name | SKU ID |
|---|---|---|
| Public NAT | Networking Cloud NAT IP usage | 8515-9425-D2CE |
| Public NAT | Networking Cloud NAT data processing | 015F-5732-FFF0 |
| Public NAT | Networking Cloud NAT gateway uptime | 32E2-4EFC-EF9F |
| Private NAT | Networking Private NAT data processing | 6B7A-B4EC-BCA5 |
| Private NAT | Networking Private NAT gateway uptime | AAF7-1D17-BFC4 |
Logging pricing
Cloud NAT logging pricing is described in Network Telemetry pricing.
Standard pricing for Cloud Logging, BigQuery, or Pub/Sub apply.
What's next
- Read the Cloud NAT documentation.
- Try the pricing calculator.
- Learn about Cloud NAT solutions and use cases.