AWS egress cost calculator
Enter your monthly data transfer out and get the exact AWS egress cost, tier by tier. Rates are $0.09/GB for the first 10 TB after a 100 GB free allowance, dropping to $0.05/GB above 150 TB. Every figure is recomputed from the published AWS data transfer tiers.
Standard internet egress · US regions · excludes NAT Gateway, cross-AZ, and load balancer surcharges
AWS egress cost at common volumes
per month · after 100 GB free924 GB billable at $0.09 after the 100 GB free tier.
10,140 GB billable, all in the first $0.09 tier.
10 TB at $0.09 plus the rest at $0.085.
Spans three tiers down to $0.07/GB.
Full first three tiers; $0.07 on 50-150 TB.
Base internet egress only. A real multi-AZ workload typically pays 50-200% more once NAT Gateway, cross-AZ, and load balancer fees are added. See the full breakdown on the AWS data transfer reference.
[01]The tiers the calculator uses
AWS internet egress is volume-tiered: every GB is billed at the rate of the band it falls into, so your effective rate falls as monthly volume rises. Official AWS source →
internet egress, post-free-tier
10-50 TB band
50-150 TB band
high-volume
[02]What the headline rate leaves out
The calculator models standard internet egress. Most AWS bills are larger because of these per-GB surcharges, billed on top of the tiers above.
Compare AWS against zero-egress alternatives
Azure undercuts AWS below 50 TB; Cloudflare R2 is zero egress at every volume. Run the same number across all providers, or read the full AWS reference for per-service rates.
[03]Frequently asked
Q.01Is there a free AWS egress cost calculator?
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Yes. The calculator on this page is free with no login. Enter your monthly data transfer out in GB or TB and it applies the published AWS internet egress tiers automatically: the first 100 GB is free, then $0.09/GB for the first 10 TB, $0.085/GB for the next 40 TB, $0.07/GB for the next 100 TB, and $0.05/GB above 150 TB. It shows the tier-by-tier breakdown, so you can see exactly how the effective rate falls as volume rises. Hidden surcharges (NAT Gateway at $0.045/GB, cross-AZ at $0.01/GB each way) are listed separately because they depend on your architecture, not just your volume.
Q.02How do I calculate AWS egress cost?
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Subtract the 100 GB monthly free allowance from your data transfer out, then bill the remainder against AWS internet egress tiers: $0.09/GB for the first 10 TB, $0.085/GB for the next 40 TB, $0.07/GB for the next 100 TB, and $0.05/GB above 150 TB. So 1 TB/month costs $83.16, 10 TB costs $912.60, 50 TB costs $4,394.70, and 100 TB costs $7,980.20 in base egress. The calculator above does this tier math automatically.
Q.03How much does 1 TB of AWS egress cost?
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1 TB (1,024 GB) of internet data transfer out of AWS costs $83.16 per month. After the 100 GB free allowance, 924 GB is billed at the first-tier rate of $0.09/GB. That figure excludes hidden surcharges such as NAT Gateway processing ($0.045/GB) and cross-AZ transfer ($0.01/GB each way), which most production architectures also incur.
Q.04Does the AWS free tier reduce my egress cost?
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Yes. AWS gives 100 GB per month of free outbound data transfer to the internet, aggregated across all regions and services (S3, EC2, RDS, Lambda, API Gateway, etc.). This is always-free, not part of the 12-month introductory tier. The calculator subtracts it before applying the tiered rates, so a 1 TB transfer is billed on 924 GB, not the full 1,024 GB.
Q.05What costs does this AWS egress calculator not include?
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It models standard internet data transfer out from US regions on the tiered rates. It does not add the hidden surcharges that most workloads also pay: NAT Gateway processing at $0.045/GB, cross-AZ transfer at $0.01/GB each way, load balancer data processing at $0.008/GB, and cross-region transfer at $0.01-0.02/GB. On a typical multi-AZ SaaS workload these can add 50-200% on top of the headline egress.