Amazon Web Services (AWS) offers a vast array of services, each with its own pricing model. Accurately estimating your monthly AWS costs involves understanding these models and inputting your expected usage for each service. This calculator provides a simplified estimation for a few commonly used AWS services:
Core Services Included:
Amazon Elastic Compute Cloud (EC2): Provides virtual servers (instances) in the cloud. Pricing is typically based on the instance type (CPU, RAM, network performance), the operating system, and the duration the instance is running (per hour or per second). We've included a few popular instance types like t2.micro (often eligible for the AWS Free Tier), t3.micro, m5.large (general purpose), c5.xlarge (compute-optimized), and r5.xlarge (memory-optimized). The cost is calculated as:
(Instance Hourly Rate) * (Hours Used Per Month)
Amazon Simple Storage Service (S3): A scalable object storage service. Pricing is primarily based on the amount of data stored (GB-Months) and the number of requests made to access or manipulate that data. Different storage classes (Standard, Infrequent Access, Glacier) have different pricing. This calculator uses a simplified model for S3 Standard.
(S3 Standard Storage Rate per GB-Month) * (Total GB-Months Stored) + (S3 Request Rate per 10,000 Requests) * (Total Requests / 10,000)
AWS Lambda: A serverless compute service. You pay for the compute time consumed (measured in GB-seconds) and the number of requests (invocations) made to your functions. The pricing tiers can vary, and this calculator uses a simplified approximation.
(Lambda Request Rate per 1 Million Requests) * (Total Requests / 1,000,000) + (Lambda Duration Rate per GB-second) * (Total GB-Seconds Used)
How This Calculator Works:
This calculator uses predefined, approximate pricing tiers for common AWS services. These prices can vary slightly by region and are subject to change by AWS. For precise and up-to-date pricing, always refer to the official AWS Pricing page.
Important Notes:
This is a simplified estimation. Real-world AWS costs can be influenced by many factors, including data transfer (outbound traffic), specific AWS region, reserved instances, savings plans, support plans, and many other ancillary services not included here.
The "Free Tier" eligible items (like t2.micro for 750 hours/month) are accounted for in the base rates but may not always result in a $0.00 cost if usage exceeds the free tier limits.
GB-Months for S3 means storing 1 GB for 1 month. If you store 10 GB for 3 months, that's 30 GB-Months.
GB-Seconds for Lambda means running a function that consumes 1 GB of RAM for 1 second. If a function uses 256MB (0.25 GB) for 2 seconds, that's 0.5 GB-Seconds.
Use this calculator as a starting point to understand the potential costs associated with your AWS infrastructure. For detailed project planning, utilize the official AWS Pricing Calculator.
function calculateAWSCost() {
// — Approximate Pricing (USD per month, subject to change and region) —
// EC2 Instance Rates (On-Demand, Linux, us-east-1 as an example)
var ec2Rates = {
"t2.micro": 0.0116, // ~ $8.40/month for 730 hours
"t3.micro": 0.017, // ~ $12.41/month for 730 hours
"m5.large": 0.096, // ~ $70.08/month for 730 hours
"c5.xlarge": 0.144, // ~ $105.12/month for 730 hours
"r5.xlarge": 0.174 // ~ $127.02/month for 730 hours
};
// S3 Standard Storage (per GB-Month)
var s3StorageRate = 0.023; // Example rate
// S3 Requests (per 10,000 requests)
var s3RequestsRate = 0.0004; // Example rate for PUT, COPY, POST, LIST
// Lambda (per million requests and per GB-second)
var lambdaRequestRate = 0.20; // per 1M requests
var lambdaDurationRate = 0.0000166667; // per GB-second
// — Input Values —
var selectedInstanceType = document.getElementById("ec2InstanceType").value;
var ec2Hours = parseFloat(document.getElementById("ec2Hours").value) || 0;
var s3StorageGB = parseFloat(document.getElementById("s3StorageGB").value) || 0;
var s3Requests = parseFloat(document.getElementById("s3Requests").value) || 0;
var lambdaInvocations = parseFloat(document.getElementById("lambdaInvocations").value) || 0;
var lambdaDurationMs = parseFloat(document.getElementById("lambdaDurationMs").value) || 0; // Assuming this is already in GB-Seconds as per label
// — Calculations —
var totalCost = 0;
var ec2Cost = 0;
var s3Cost = 0;
var lambdaCost = 0;
// EC2 Cost Calculation
var instanceRate = ec2Rates[selectedInstanceType] || 0; // Default to 0 if type not found
if (instanceRate > 0) {
ec2Cost = instanceRate * ec2Hours;
// Simple check for t2.micro free tier eligibility (750 hours/month)
if (selectedInstanceType === "t2.micro" && ec2Hours <= 750) {
ec2Cost = 0; // Assume free tier covers it
}
// Note: Actual free tier logic is more complex and applies to the *account*, not just one instance.
// This is a simplification for the calculator.
}
// S3 Cost Calculation
var s3StorageCost = s3StorageRate * s3StorageGB;
var s3RequestsCost = s3RequestsRate * (s3Requests / 10000); // Rate is per 10,000 requests
s3Cost = s3StorageCost + s3RequestsCost;
// Lambda Cost Calculation
var lambdaInvocationsCost = lambdaRequestRate * (lambdaInvocations / 1000000); // Rate is per 1M requests
// lambdaDurationMs is assumed to be in GB-Seconds. If it were milliseconds, we'd need conversion.
var lambdaDurationCost = lambdaDurationRate * lambdaDurationMs;
lambdaCost = lambdaInvocationsCost + lambdaDurationCost;
// Total Cost
totalCost = ec2Cost + s3Cost + lambdaCost;
// — Display Result —
var formattedCost = totalCost.toFixed(2);
document.getElementById("calculatedCost").innerText = "$" + formattedCost;
// Basic validation feedback
if (isNaN(ec2Hours) || isNaN(s3StorageGB) || isNaN(s3Requests) || isNaN(lambdaInvocations) || isNaN(lambdaDurationMs)) {
document.getElementById("calculatedCost").innerText = "Invalid Input";
} else if (totalCost < 0) {
document.getElementById("calculatedCost").innerText = "$0.00"; // Ensure non-negative display
}
}