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AWS Fundamentals

AWS AWS KMS Service Limits

5 quotas for AWS KMS. 4 can be increased.

QuotaDefaultStatus
KMS keys per region

Maximum KMS keys per region.

configuration
100,000
count
Adjustable
Aliases per KMS key

Maximum aliases per KMS key.

configuration
50
count
Adjustable
Cryptographic operations request rateCommon

Rate limit varies by key type and operation.

throughput
Varies
requests/second
Adjustable
Grants per KMS key

Maximum grants per KMS key.

configuration
50,000
count
Adjustable
Key policy document size

Maximum key policy document size.

configuration
32
KB
Fixed

How to Request a Quota Increase

  1. 1Open the AWS Service Quotas console.
  2. 2Select AWS KMS from the service list.
  3. 3Find the quota and click "Request increase".
  4. 4Enter the desired value and submit. Most increases are approved within a few hours.

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Quick Stats

Total Quotas5
Adjustable4
Fixed1
Commonly Hit1