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* $-/GB-s 400,000 GB-s
Total executions* $- 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. Standard storage rates and networking rates charged separately as applicable.

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Pricing details

Executions

Functions are billed based on 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 average memory size in gigabytes by the time in seconds it takes to execute the function. Memory used by a function is measured by rounding up to the nearest 128 MB, up to the maximum memory size of 1,536 MB, with execution time calculated by rounding up to the nearest 100 ms. The minimum execution time and memory for a single function execution is 100 ms and 128 mb respectively. Functions pricing includes a monthly free grant of 400,000 GB-s.

Pricing example

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

Resource consumption billing calculation

Resource consumption (seconds)
Executions 2 million executions
Execution duration (seconds) 1 second
Resource consumption total 2 million seconds
Resource consumption (GB-s)
Resource consumption converted to GBs 1,536 MB / 1,024 MB
Execution time (seconds) 2 million seconds
Total GBs 3 million GBs
Billable resource consumption
Resource consumption 3 million GBs
Monthly free grant 400,000 GB-s
Total billable consumption 2,600,000 GB-s
Monthly resource consumption cost
Billable resource consumption 2,600,000 GB-s
Resource consumption price $-/GB-s
Total cost $41.6000000000

Executions billing calculation

Billable executions
Total monthly executions 2 million executions
Monthly free executions 1 million executions
Monthly billable executions 1 million executions
Monthly executions cost
Monthly billable executions 1 million executions
Price per million executions $-
Monthly execution cost $-

Total consumption billing calculation

Total monthly cost
Monthly resource consumption cost $41.6000000000
Monthly executions cost $-
Total monthly cost $-

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