AWS EC2 Monthly Cost Estimator
Estimate your monthly Amazon EC2 costs based on instance type, OS, usage, storage, and data transfer. This calculator uses On-Demand pricing estimates for the US East (N. Virginia) region.
Understanding AWS EC2 Pricing
Amazon Elastic Compute Cloud (EC2) is a web service that provides resizable compute capacity in the cloud. It's designed to make web-scale cloud computing easier for developers. Understanding its pricing model is crucial for managing your AWS budget effectively.
Key Pricing Components:
- Instance Type: This is the most significant factor. EC2 instances come in various types (e.g., T, M, C, R, G, I, D families), each optimized for different workloads (general purpose, compute-optimized, memory-optimized, etc.). Each type has a specific hourly rate based on its CPU, memory, storage, and networking capabilities.
- Operating System: The choice of operating system (Linux, Windows, etc.) impacts the hourly rate. Windows instances typically incur a higher cost due to licensing fees.
- Usage Hours: EC2 instances are billed per second, with a minimum of 60 seconds. Our calculator simplifies this to monthly hours for estimation. Running an instance 24/7 for a 31-day month means approximately 744 hours.
- EBS Storage: Elastic Block Store (EBS) provides persistent block storage volumes for use with EC2 instances. You pay for the provisioned storage capacity per GB-month, regardless of whether it's actively used. Different EBS volume types (e.g., gp2, gp3, io1, st1, sc1) have different pricing and performance characteristics. This calculator uses the common gp2 type.
- Data Transfer Out: Data transferred *out* of AWS regions to the internet is generally charged. The first gigabyte (GB) per month is often free, and then tiered pricing applies. Data transfer *in* to AWS is typically free. Data transfer between AWS services within the same region is also often free or very low cost.
- Region: AWS pricing varies by geographical region due to differences in infrastructure costs, local taxes, and market conditions. Our calculator uses pricing estimates for the US East (N. Virginia) region.
Pricing Models:
While this calculator focuses on On-Demand pricing, AWS offers other models for cost optimization:
- On-Demand Instances: Pay for compute capacity by the hour or second with no long-term commitments. Ideal for unpredictable workloads.
- Reserved Instances (RIs): Commit to a specific instance type for a 1-year or 3-year term in exchange for significant discounts (up to 75% compared to On-Demand). Best for steady-state workloads.
- Savings Plans: A flexible pricing model that offers lower prices on EC2, Fargate, and Lambda usage in exchange for a commitment to a consistent amount of usage (measured in $/hour) for a 1-year or 3-year term.
- Spot Instances: Bid on unused EC2 capacity for up to 90% off On-Demand prices. Ideal for fault-tolerant, flexible applications that can handle interruptions.
How to Use the Calculator:
- Select EC2 Instance Type: Choose the instance type that best suits your application's CPU, memory, and networking requirements.
- Choose Operating System: Select Linux or Windows based on your needs.
- Enter Monthly Usage Hours: Specify how many hours per month your instance will run. For 24/7 operation, use 744 hours (approx. 31 days * 24 hours).
- Input EBS Storage: Enter the amount of General Purpose SSD (gp2) storage in GB you expect to use per month.
- Specify Data Transfer Out: Estimate the amount of data in GB that will be transferred from your EC2 instance to the internet each month.
- Click "Calculate Monthly Cost": The calculator will provide an estimated breakdown and total monthly cost.
Example Scenarios:
Example 1: Small Web Server (Linux)
- Instance Type: t2.micro
- Operating System: Linux
- Monthly Usage Hours: 744 (24/7)
- EBS Storage (gp2): 30 GB
- Data Transfer Out: 10 GB
- Estimated Monthly Cost:
- Instance: $0.0116/hr * 744 hrs = $8.63
- EBS: 30 GB * $0.10/GB = $3.00
- Data Transfer: (10 GB – 1 GB free) * $0.09/GB = $0.81
- Total: $12.44
Example 2: Medium Application Server (Windows)
- Instance Type: m5.large
- Operating System: Windows
- Monthly Usage Hours: 744 (24/7)
- EBS Storage (gp2): 100 GB
- Data Transfer Out: 50 GB
- Estimated Monthly Cost:
- Instance (Linux base): $0.096/hr * 744 hrs = $71.42
- Windows Premium: $0.05/hr * 744 hrs = $37.20
- Total Instance: $71.42 + $37.20 = $108.62
- EBS: 100 GB * $0.10/GB = $10.00
- Data Transfer: (50 GB – 1 GB free) * $0.09/GB = $4.41
- Total: $123.03
Disclaimer: This calculator provides an estimate based on On-Demand pricing in the US East (N. Virginia) region and simplified assumptions for certain services. Actual costs may vary based on specific AWS region, exact instance configurations, other AWS services used, and pricing changes. Always refer to the official AWS Pricing pages for the most accurate and up-to-date information.
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function calculateAwsEc2Cost() {
// Get input values
var instanceTypeSelect = document.getElementById("instanceType");
var selectedOption = instanceTypeSelect.options[instanceTypeSelect.selectedIndex];
var linuxHourlyRate = parseFloat(selectedOption.getAttribute("data-linux-hourly"));
var windowsHourlyPremium = parseFloat(selectedOption.getAttribute("data-windows-hourly-premium"));
var osLinux = document.getElementById("osLinux").checked;
var osWindows = document.getElementById("osWindows").checked;
var monthlyHours = parseFloat(document.getElementById("monthlyHours").value);
var ebsStorageGB = parseFloat(document.getElementById("ebsStorageGB").value);
var dataTransferOutGB = parseFloat(document.getElementById("dataTransferOutGB").value);
// Define constants for pricing (US East – N. Virginia, gp2, data transfer out)
var ebsPricePerGB = 0.10; // $0.10 per GB-month for gp2
var dataTransferOutPricePerGB = 0.09; // $0.09 per GB after free tier
var dataTransferFreeTierGB = 1; // First 1 GB free per month
// Validate inputs
if (isNaN(monthlyHours) || monthlyHours 744) {
document.getElementById("instanceCostResult").innerText = "Invalid";
document.getElementById("ebsCostResult").innerText = "Invalid";
document.getElementById("dataTransferCostResult").innerText = "Invalid";
document.getElementById("totalMonthlyCostResult").innerText = "Invalid";
return;
}
if (isNaN(ebsStorageGB) || ebsStorageGB < 0) {
document.getElementById("instanceCostResult").innerText = "Invalid";
document.getElementById("ebsCostResult").innerText = "Invalid";
document.getElementById("dataTransferCostResult").innerText = "Invalid";
document.getElementById("totalMonthlyCostResult").innerText = "Invalid";
return;
}
if (isNaN(dataTransferOutGB) || dataTransferOutGB dataTransferFreeTierGB) {
dataTransferCost = (dataTransferOutGB – dataTransferFreeTierGB) * dataTransferOutPricePerGB;
}
// Calculate Total Monthly Cost
var totalMonthlyCost = instanceCost + ebsCost + dataTransferCost;
// Display results
document.getElementById("instanceCostResult").innerText = instanceCost.toFixed(2);
document.getElementById("ebsCostResult").innerText = ebsCost.toFixed(2);
document.getElementById("dataTransferCostResult").innerText = dataTransferCost.toFixed(2);
document.getElementById("totalMonthlyCostResult").innerText = totalMonthlyCost.toFixed(2);
}
// Run calculation on page load with default values
window.onload = calculateAwsEc2Cost;