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Dominik Heinrich

Log retention cost

What your log volume and retention cost on Azure, AWS and Google Cloud, and which lever is bigger.

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What do your logs cost?

Log volume and retention, priced on Azure, AWS and Google Cloud. Most of the time the bill comes from what you write, not from how long you keep it.

Retention

ServiceWritingKeepingPer month
Azure Log Analytics$909$77$986
AWS CloudWatch Logs$192$29$221
Google Cloud Logging$127$6.00$133

Writing is 87–95% of the cost here: logging less (debug levels, health checks, noisy services) saves more than shorter retention.

List prices in USD as of 8 November 2026: Azure Log Analytics (Analytics logs, West Europe, 31 days included), AWS CloudWatch Logs (Standard, Frankfurt; storage billed on compressed size, so this is an upper bound), Google Cloud Logging (30 days included, first 50 GiB per project and month free; GiB counted as GB). Azure and AWS free allowances, cheaper log tiers and archive options are not included.

Azure Retail Prices API · Azure Monitor Logs · AWS CloudWatch · Google Cloud

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