How much does AWS NAT Gateway cost?

NAT Gateway: $0.045/hr = $32.40/month + $0.045/GB processed. A NAT Gateway processing 10TB/month costs $450 + $32.40 = $482.40. NAT Gateways are a top source of unexpected AWS bills.

How can I reduce NAT Gateway costs?

Use VPC endpoints for S3 and DynamoDB (free, bypasses NAT). Move public-facing services to public subnets with security groups. Use NAT Instances (EC2) for low-traffic: t3.nano at $3.80/month handles light NAT.

Do I need a NAT Gateway in every AZ?

For production HA, yes — one per AZ to avoid cross-AZ data transfer charges ($0.01/GB). The per-AZ NAT cost is offset by eliminating cross-AZ charges for moderate data volumes.

AWS NAT Gateway Cost Calculator

Calculate AWS NAT Gateway costs: $0.045/hour + $0.045/GB processed. A common source of unexpected AWS bills; model data transfer and evaluate alternatives.

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AI ROI

LTV:CAC Ratio

ARPU ($/month)

Monthly Churn %

CAC ($)

Gross Margin %

LTV

$3500

LTV:CAC

11.67

Payback

2.9 mo

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Healthy ✓

Benchmark: LTV:CAC ≥ 3 is healthy. Payback under 12 months is excellent. Under 1 means you lose money on each customer.

How to Use

Enter the values for the scenario you are assessing. Calculate AWS NAT Gateway costs: $0.045/hour + $0.045/GB processed. A common source of unexpected AWS bills; model data transfer and evaluate alternatives. Use the nat gateway cost result to inform your calculation.

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AWS NAT Gateway Cost Calculator

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Frequently Asked Questions

How much does AWS NAT Gateway cost?

How can I reduce NAT Gateway costs?

Do I need a NAT Gateway in every AZ?