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About this tool
Compute Google Cloud Run cost from requests, CPU, memory, concurrency and min instances — free tier and idle rates included.
The GCP Cloud Run Cost Calculator estimates a Google Cloud Run service's monthly bill under request-based billing: vCPU-seconds at $0.000024, GiB-seconds at $0.0000025 and requests at $0.40 per million (Tier 1 regions), after the monthly free tier of 180,000 vCPU-seconds, 360,000 GiB-seconds and 2 million requests. It models the details that change the answer — 100 ms billing increments, request concurrency sharing one instance, and warm min instances billing at idle rates around the clock.
Open GCP Cloud Run Cost Calculator on AltFTool — it loads instantly in your browser.
Enter Requests per month, Average request duration (ms), vCPU per instance, Memory per instance (GiB), Average concurrency per instance and Minimum (warm) instances
The calculator deducts the free tier — 180,000 vCPU-seconds, 360,000 GiB-seconds and 2 million requests — then prices the rest at Tier 1 request-based rates in 100 ms increments
Read the Estimated monthly Cloud Run cost with its vCPU, memory, request and Idle min-instance cost lines, then press Copy result
The 180k vCPU-s, 360k GiB-s and 2M request monthly allowances are deducted first.
Concurrent requests share one instance's clock, exactly as Cloud Run bills it.
Min instances are priced at the idle rates of $0.000018/vCPU-s and $0.000002/GiB-s.
Under request-based billing you pay for vCPU-seconds ($0.000024), memory GiB-seconds ($0.0000025) and requests ($0.40 per million) in Tier 1 regions, rounded up to 100 ms per request. Instance-based billing instead charges the whole instance lifetime at lower rates ($0.000018/vCPU-s) with no per-request fee.
Often, yes. Every month the first 180,000 vCPU-seconds, 360,000 GiB-seconds and 2 million requests are free in Tier 1 regions — enough for roughly 600,000 requests at 300 ms on a 1 vCPU service before any compute charge appears.
Directly: Cloud Run bills instance time, not per-request time, so 80 requests handled concurrently on one instance cost roughly 1/80th of the compute of handling them serially. Raising concurrency is usually the biggest single cost lever, limited by how CPU-bound each request is.
A warm idle instance bills at the idle rates — $0.000018 per vCPU-second and $0.000002 per GiB-second in Tier 1 regions — which comes to about $50 per month for a 1 vCPU / 512 MiB instance kept warm around the clock. That is the price of eliminating cold starts.
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