With AWS Lambda, you pay only for what you use. You are charged based on the number of requests for your functions and the duration, the time it takes for your code to execute.

Lambda Pricing

Lambda@Edge Pricing

Lambda pricing details

Lambda counts a request each time it starts executing in response to an event notification or invoke call, including test invokes from the console. You are charged for the total number of requests across all your functions.  

Duration is calculated from the time your code begins executing until it returns or otherwise terminates, rounded up to the nearest 100ms. The price depends on the amount of memory you allocate to  your function.

The Lambda free tier includes 1M free requests per month and 400,000 GB-seconds of compute time per month

Free Tier

1M REQUESTS

per month

400,000 GB-SECONDS

of compute time per month.

The Lambda free tier does not automatically expire at the end of your 12 month AWS Free Tier term, but is available to both existing and new AWS customers indefinitely.

Requests

1M REQUESTS FREE

First 1M requests per month are free.

$0.20 PER 1M REQUESTS THEREAFTER

$0.0000002 per request.

Duration

400,000 GB-SECONDS PER MONTH FREE

First 400,000 GB-seconds per month, up to 3.2M seconds of compute time, are free.

$0.00001667 FOR EVERY GB-SECOND USED THEREAFTER

The price depends on the amount of memory you allocate to your function.

The Lambda free tier includes 1M free requests per month and 400,000 GB-seconds of compute time per month. The memory size you choose for your Lambda functions determines how long they can run in the free tier. The Lambda free tier does not automatically expire at the end of your 12 month AWS Free Tier term, but is available to both existing and new AWS customers indefinitely.

The table below shows the free tier seconds and the approximate price per 100ms associated for different memory sizes.

Memory (MB) Free tier seconds per month Price per 100ms ($)
128 3,200,000 0.000000208
192 2,133,333 0.000000313
256 1,600,000 0.000000417
320 1,280,000 0.000000521
384 1,066,667 0.000000625
448 914,286 0.000000729
512 800,000 0.000000834
576 711,111 0.000000938
640 640,000 0.000001042
704 581,818 0.000001146
768 533,333 0.000001250
832 492,308 0.000001354
896 457,143 0.000001459
960 426,667 0.000001563
1024 400,000 0.000001667
1088 376,471 0.000001771
1152 355,556 0.000001875
1216 336,842 0.000001980
1280 320,000 0.000002084
1344 304,762 0.000002188
1408 290,909 0.000002292
1472 278,261 0.000002396
1536 266,667 0.000002501
1600 256,000 0.000002605
1664 246,154 0.000002709
1728 237,037 0.000002813
1792 228,571 0.000002917
1856 220,690 0.000003021
1920 213,333 0.000003126
1984 206,452 0.000003230
2048 200,000 0.000003334
2112 193,939 0.000003438
2176 188,235 0.000003542
2240 182,857 0.000003647
2304 177,778 0.000003751
2368 172,973 0.000003855
2432 168,421 0.000003959
2496 164,103 0.000004063
2560 160,000 0.000004168
2624 156,098 0.000004272
2688 152,381 0.000004376
2752 148,837 0.000004480
2816 145,455 0.000004584
2880 142,222 0.000004688
2944 139,130 0.000004793
3008 136,170 0.000004897

Additional charges

You may incur additional charges if your Lambda function utilizes other AWS services or transfers data. For example, if your Lambda function reads and writes data to or from Amazon S3, you will be billed for the read/write requests and the data stored in Amazon S3.

For details on AWS service pricing, see the pricing section of the relevant AWS service detail pages. Links to pricing for some of the commonly used services are listed below.

Data transfer

If your Lambda function initiates external data transfers, they will be charged at the EC2 data transfer rate

Amazon S3 pricing

Includes pricing for storage, requests, and data transfer

Amazon DynamoDB

Includes pricing for data storage, throughput capacity, and data transfer

Lambda pricing examples

  • Example 1

    If you allocated 512MB of memory to your function, executed it 3 million times in one month, and it ran for 1 second each time, your charges would be calculated as follows:
    If you allocated 512MB of memory to your function, executed it 3 million times in one month, and it ran for 1 second each time, your charges would be calculated as follows:

    Monthly compute charges

    The monthly compute price is $0.00001667 per GB-s and the free tier provides 400,000 GB-s.

    Total compute (seconds) = 3M * (1s) = 3,000,000 seconds

    Total compute (GB-s) = 3,000,000 * 512MB/1024 = 1,500,000 GB-s

    Total compute – Free tier compute = Monthly billable compute GB- s

    1,500,000 GB-s – 400,000 free tier GB-s = 1,100,000 GB-s

    Monthly compute charges = 1,100,000 * $0.00001667 = $18.34

     

    Monthly request charges

    The monthly request price is $0.20 per 1 million requests and the free tier provides 1M requests per month.

    Total requests – Free tier requests = Monthly billable requests

    3M requests – 1M free tier requests = 2M Monthly billable requests

    Monthly request charges = 2M * $0.2/M = $0.40

     

    Total monthly charges

    Total charges = Compute charges + Request charges = $18.34 + $0.40 = $18.74 per month

  • Example 2

    If you allocated 128MB of memory to your function, executed it 30 million times in one month, and it ran for 200ms each time, your charges would be calculated as follows:
    If you allocated 128MB of memory to your function, executed it 30 million times in one month, and it ran for 200ms each time, your charges would be calculated as follows:

    Monthly compute charges

    The monthly compute price is $0.00001667 per GB-s and the free tier provides 400,000 GB-s.

    Total compute (seconds) = 30M * (0.2sec) = 6,000,000 seconds

    Total compute (GB-s) = 6,000,000 * 128MB/1024 = 750,000 GB-s

    Total Compute – Free tier compute = Monthly billable compute seconds

    750,000 GB-s – 400,000 free tier GB-s = 350,000 GB-s

    Monthly compute charges = 350,000 * $0.00001667 = $5.83

     

    Monthly request charges

    The monthly request price is $0.20 per 1 million requests and the free tier provides 1M requests per month.

    Total requests – Free tier request = Monthly billable requests

    30M requests – 1M free tier requests = 29M Monthly billable requests

    Monthly request charges = 29M * $0.2/M = $5.80

     

    Total compute charges

    Total charges = Compute charges + Request charges = $5.83 + $5.80 = $11.63 per month

  • Example 3

    This example shows how charges are calculated when you are running functions with different memory sizes. For the example, let’s assume you have three functions, each with different memory sizes as described below:
    This example shows how charges are calculated when you are running functions with different memory sizes. For the example, let’s assume you have three functions, each with different memory sizes as described below:

    Function 1

    128MB of memory, executed 25M times in one month, runs for 200ms each time

    Total compute (seconds) = 25M * (0.2sec) = 5M seconds

    Function 2

    448MB of memory, executed 5M times in one month, runs for 500ms each time

    Total compute (seconds) = 5M * (0.5sec) = 2M seconds

    Function 3

    1024MB of memory, executed 2.5M times in one month, runs for 1 second each time

    Total compute (seconds) = 2.5M * (1sec) = 2.5M seconds

     

    If you ran these functions, your charges would be calculated as follows:

    Monthly compute charges

    AWS Lambda normalizes the total compute time to GB-s and then sums the total across all functions

    Function 1 (GB-S) = 5M seconds * (128MB/1024) = 625,000 GB-s

    Function 2 (GB-S) = 2.5M seconds * (448MB/1024) = 1,093,750 GB-s

    Function 3 (GB-S) = 2.5M seconds * (1024MB/1024) = 2,500,000 GB-s

    Total monthly compute usage (GB-S) = 4,218,750 GB-s

     

    The monthly compute price is $0.00001667 per GB-s and the free tier provides 400,000 GB-s.

    Monthly charged compute usage = Total monthly compute usage – Free tier usage

    Monthly charged compute usage = 4,218,750 – 400,000 = 3,818,750 GB-s

    Monthly compute charges = 3,818,750 * 0.00001667 = $63.66

     

    Monthly request charges

    The monthly request price is $0.20 per 1 million requests and the free tier provides 1M requests per month.

    Total requests – Free tier requests = Monthly billable requests

    (25M+5M+2.5M) requests – 1M free tier requests = 31.5M Monthly billable requests

    Monthly request charges = 31.5M * $0.2/M = $6.30

     

    Total Monthly Charges

    Total charges = Compute charges + Request charges = $63.66 + $6.30 = $69.96 per month

Lambda@Edge pricing details

There is no free tier for Lambda@Edge at this time.

You are charged for the total number of requests across all your functions. Lambda@Edge counts a request each time it starts executing in response to a CloudFront event globally.

Request pricing is $0.60 per 1 million requests ($0.0000006 per request).

Duration is calculated from the time your code begins executing until it returns or otherwise terminates. You are charged $0.00005001 for every GB-second used. For instance, if you allocate 128MB of memory available per execution with your Lambda@Edge function, then your duration charge will be $0.00000625125 for every 128MB-second used. Note that Lambda@Edge functions are metered at a granularity of 50ms.

Requests

$0.60 PER 1M REQUESTS

$0.0000006 per request

Duration

$0.00000625125 for every 128MB-second

Lambda@Edge functions are metered at a granularity of 50ms

Lambda@Edge pricing examples

Additional pricing resources

TCO Calculator

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Simple Monthly Calculator

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Economics Resource Center

Additional resources for switching to AWS

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