AWS Lambda Cost Calculator | Pricing Estimator

AWS Lambda cost calculator: estimate monthly requests, GB-second duration, free tier and Provisioned Concurrency, with x86 and Arm compared. Free.

Also known as: aws lambda cost calculator · lambda pricing calculator · aws lambda pricing · lambda cost per request · lambda gb-second cost · lambda provisioned concurrency cost · lambda arm vs x86 cost · lambda free tier calculator · serverless cost estimator

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Function and Traffic

x86

Requests per month

invocations across the month

Average duration (ms)

billed per 1 ms, rounded up

Memory (MB)

128 to 10,240

Ephemeral storage (MB)

first 512 MB free

Async event size (KB)

0 for sync; over 256 KB costs extra requests

Architecture

the other one is priced too

Apply the monthly free tier

1M requests and 400,000 GB-seconds, shared by every function in the account.

Provisioned Concurrency (optional)

Provisioned Concurrency

0 = off

Hours enabled per month

730 = always on

Requests while provisioned

part of the monthly total

Duration while provisioned (ms)

0 = same as average

Requests: $0.20 per 1M. Duration: $0.0000166667 per GB-second on x86, $0.0000133334 on Arm, lower past 6 and 7.5 billion GB-seconds.

US East (N. Virginia) list prices; other Regions differ.

Monthly Cost

Your monthly Lambda bill, the same workload on the other architecture and every line item behind them will appear here.

About AWS Lambda Cost Calculator

An AWS Lambda cost calculator estimates the monthly bill for a function before you deploy it or when one starts to cost more than expected. Enter requests, average duration and memory, and it applies AWS's request price, the GB-second duration tiers, the free tier, ephemeral storage and Provisioned Concurrency, then prices the same workload on the other architecture.

Key Features

Request and duration charges with AWS's tiered GB-second prices for x86 and Arm
Side-by-side x86 and Arm (Graviton) totals for the same workload
Optional free tier: 1 million requests and 400,000 GB-seconds a month
Provisioned Concurrency charges, including requests served while it is enabled
Ephemeral storage above the free 512 MB and the extra request charge for async events over 256 KB
Reproduces AWS's own published pricing examples to the cent, with the arithmetic shown per line

Use Cases

Price a new API endpoint on API Gateway and Lambda before a launch in us-east-1
Check whether moving a function from x86 to Graviton is worth a test run
Explain a jump in the AWS bill after memory was raised from 512 MB to 2,048 MB
Budget Provisioned Concurrency for a Black Friday or Cyber Monday traffic spike
Compare the per-million-request cost of Lambda with a container on Fargate or EC2
Show finance what cutting average duration from 400 ms to 150 ms saves each month

Supported Formats

US dollars

US East (N. Virginia) prices

x86_64 and arm64

Related Keywords

aws lambda cost calculator

lambda pricing calculator

aws lambda pricing

lambda cost per request

lambda gb-second cost

lambda provisioned concurrency cost

lambda arm vs x86 cost

lambda free tier calculator

serverless cost estimator

How is AWS Lambda cost calculated?

Lambda bills two things: requests, at $0.20 per million, and duration, in GB-seconds, which is the memory you configure in GB multiplied by how long each invocation runs, rounded up to the nearest millisecond. In US East (N. Virginia), x86 duration costs $0.0000166667 per GB-second for the first 6 billion GB-seconds a month, and Arm costs $0.0000133334, about 20% less. The free tier covers 1 million requests and 400,000 GB-seconds a month across the account. Memory is the lever most people miss: doubling it doubles the price per millisecond, but because Lambda allocates CPU in proportion to memory, it can also cut duration enough to come out cheaper. Measure both before you settle on a size.

Privacy & Security

All processing happens locally in your browser. Your data never leaves your computer, ensuring complete privacy and security.

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Frequently asked questions

What is AWS Lambda Cost Calculator used for?

AWS Lambda cost calculator: estimate monthly requests, GB-second duration, free tier and Provisioned Concurrency, with x86 and Arm compared. Free.

Is AWS Lambda Cost Calculator free to use?

Yes. AWS Lambda Cost Calculator is completely free with no usage limits, and there is no paid tier required to use it.

Do I need an account to use AWS Lambda Cost Calculator?

No. AWS Lambda Cost Calculator works immediately in your browser with no signup, login, or email address required.

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