Functions Pricing

Event-driven compute on demand.

Azure Functions provide a serverless development experience, supporting a robust set of event triggers and data bindings.

Azure Functions pricing

The Azure Functions consumption plan is billed based on resource consumption and executions. Consumption plan pricing includes a monthly free grant of 1 million requests and 400,000 GB-s of resource consumption per month. Customers can also run Functions within their App Service plan at regular App Service plan rates.

Meter Price Free Grant (Per Month)
Execution time* $0.000016/GB-s 400,000 GB-s
Total executions* $0.2 per million executions 1 million executions

*Free grants apply to paid, consumption subscriptions only.

Note: A storage account is created by default with each Functions App. The storage account is not included in the free grant, and any usage will be charged at standard storage rates.

Pricing details

Executions

Functions are billed based on the total number of requested executions each month for all Functions. Executions are counted each time a function is executed in response to an event, triggered by a binding. The first million executions are included for free each month.

Resource Consumption

Functions are billed based on observed resource consumption measured in Gigabyte Seconds (GB-s). Observed resource consumption is calculated by multiplying the average memory size in Gigabytes by the time in seconds it takes to execute the function. Memory used by a function is measured to the nearest 128 MB up to the maximum memory size of 1,536 MB. Functions pricing includes a monthly free grant of 400,000 GB-s.

Pricing example

A function with an observed memory consumption of 1,536 MB, executes 2,000,000 times during the month and has an execution duration of 1 second; monthly billing would be calculated as follows:

Resource Consumption Billing Calculation
Resource Consumption (Seconds) = Executions * Execution Duration (Seconds) = Resource Consumption (Seconds)
2 million executions * 1 Second = 2 Million Seconds
Resource Consumption (GB-s) = Resource Consumption converted to GB * Execution Time (Seconds) = Resource Consumption
1,536 MB/1,024 MB * 2 Million Seconds = 3 Million GB-s
Billable Resource Consumption = Resource Consumption - Monthly Free Grant = Billable Resource Consumption
3 Million GB-s - 400,000 GB-s = 2,600,000 GB-s
Monthly Resource Consumption Cost = Billable Resource Consumption * Resource Consumption Price = Monthly Resource Consumption Cost
2,600,000 GB-s * $0.000016/GB-s = $41.600000
Executions Billing Calculation
Billable Executions = Total Monthly Executions - Monthly Free Executions = Monthly Billable Executions
2 million executions - 1 million executions = 1 million executions
Monthly Executions Cost = Monthly Billable Executions * Price per million executions = Monthly execution cost
1 million executions * $0.2 = $0.2
Total Consumption Billing Calculation
Total monthly cost = Monthly Resource Consumption Cost + Monthly Executions Cost = Total monthly cost
$41.600000 + $0.2 = $41.800000

More Information

Other information regarding Azure Functions:

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