AI Tokens & Cloud ComputeVerified 2026-10-21

Google Cloud Functions Cost Calculator

Simulate GCP serverless compute bills with Google Cloud Functions 2nd Gen ($0.40 per 1M requests + compute).

Parameters & Config

Monthly Invocationscalls

calls

1,000calls1,000,000,000calls

Total function executions triggered per month

Function Memory AllocationMB

128MB10,240MB

RAM allocated to the serverless container

Average Execution Durationms

1ms900,000ms

Average latency per execution in milliseconds

Invocation Request Price ($ / 1M Calls)$

0.01$5$

Cloud provider fee per 1,000,000 invocation requests

Compute Runtime Rate ($ / GB-second)$

0$0.001$

Charge per GB-second of compute runtime consumed

Total Monthly Cloud BillLIVE ESTIMATE

$5.09

Combined monthly charge for invocations and compute runtime

Effective Cost per 1M CallsLIVE ESTIMATE

$1.02

Blended cost to execute 1,000,000 function requests

Key Metrics & Sub-Totals

3 items

Compute Runtime ChargeCost based on memory allocated and total execution duration (GB-seconds)

$3.09

Invocation Request ChargeCost for incoming API function invocations

$2.00

Monthly GB-Seconds ConsumedTotal memory-time compute units utilized

187,500 GB-s

Calculation Summary & Unit Breakdown

Metric	Calculated Value	Notes / Logic
Monthly Invocations	5,000,000	requests/month
Allocated Function Memory	256 MB	0.250 GB
Average Execution Duration	150 ms	per call
Total Compute Volume	187,500 GB-s	GB-seconds
Request Surcharge	$2.00	Invocation fee
Compute Runtime Charge	$3.09	Memory-duration fee
Effective Cost per 1M Calls	$1.02	Blended rate
Total Monthly Cloud Bill	$5.09	USD

Overview & Methodology

Google Cloud Functions (2nd Gen, powered by Cloud Run and Knative) charges $0.40 per 1,000,000 invocations plus Tier 1 compute rates ($0.0000165/GB-second and $0.000024/vCPU-second).

Mathematical Formulation

Total GCP Bill = (Invocations / 1M × $0.40) + (GB-s × $0.0000165).

Optimization Best Practices

GCP Free Tier includes 2,000,000 invocations, 400,000 GB-seconds, and 200,000 GHz-seconds of compute free every month.

2nd Gen functions support up to 60-minute execution times for heavy background ETL workloads.

Enable minimum instances to eliminate cold start latency for critical user-facing endpoints.

Frequently Asked Questions

Q.How much does 5,000,000 executions cost on Google Cloud Functions?

5M calls at 256MB and 150ms cost $2.00 for invocations plus $3.09 for compute (187,500 GB-s), totaling $5.09.

Q.What is the GCP serverless free tier allowance?

GCP provides 2M invocations and 400,000 GB-seconds free each month across Cloud Functions and Cloud Run.

Q.What is the difference between 1st Gen and 2nd Gen Cloud Functions?

2nd Gen runs on Cloud Run, offering larger concurrency (up to 1,000 requests per instance), 60-minute timeouts, and faster cold starts.