Ec2 Pricing Calculator

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Amazon EC2 Pricing Calculator

Estimated Monthly Total: $0.00

Compute Cost:

Storage Cost:

Data Out Cost:

Annual Total:

function calculateEC2Cost() { var count = parseFloat(document.getElementById('instanceCount').value) || 0; var rate = parseFloat(document.getElementById('hourlyRate').value) || 0; var hours = parseFloat(document.getElementById('usageHours').value) || 0; var ebsSize = parseFloat(document.getElementById('ebsSize').value) || 0; var ebsPrice = parseFloat(document.getElementById('ebsPrice').value) || 0; var dataTransfer = parseFloat(document.getElementById('dataTransfer').value) || 0; // AWS average month is 730 hours (365 days / 12 months * 24 hours) var monthlyUsageHours = (hours / 24) * 730; var computeMonthly = count * rate * monthlyUsageHours; var storageMonthly = ebsSize * ebsPrice; // Simple data transfer logic (First 100GB Free usually, then ~0.09) var dataMonthly = 0; if (dataTransfer > 100) { dataMonthly = (dataTransfer – 100) * 0.09; } var totalMonthly = computeMonthly + storageMonthly + dataMonthly; var totalAnnual = totalMonthly * 12; document.getElementById('computeCost').innerText = '$' + computeMonthly.toFixed(2); document.getElementById('storageCost').innerText = '$' + storageMonthly.toFixed(2); document.getElementById('dataCost').innerText = '$' + dataMonthly.toFixed(2); document.getElementById('monthlyTotal').innerText = '$' + totalMonthly.toFixed(2); document.getElementById('annualTotal').innerText = '$' + totalAnnual.toFixed(2); document.getElementById('ec2-result-box').style.display = 'block'; }

Understanding Amazon EC2 Pricing

Amazon Elastic Compute Cloud (EC2) is a cornerstone of AWS, but its pricing can be complex. Costs are primarily determined by four factors: instance type, region, pricing model, and storage requirements.

Key Components of EC2 Costs

  • Compute Instance: Charged per second or per hour depending on the OS and instance type (e.g., t3.micro, m5.large).
  • EBS Storage: Amazon Elastic Block Store volumes are charged by the amount of provisioned storage (GB per month).
  • Data Transfer: While data "in" to EC2 is typically free, data "out" to the internet is charged per GB after the initial free tier.
  • Operating System: Linux and Ubuntu instances are generally cheaper than Windows or RHEL due to licensing fees.

EC2 Pricing Models

Choosing the right purchasing option can reduce your cloud bill by up to 90%:

  • On-Demand: Pay for exactly what you use with no long-term commitment. Ideal for unpredictable workloads.
  • Reserved Instances (RI): Provide a significant discount (up to 75%) compared to On-Demand pricing in exchange for a 1 or 3-year commitment.
  • Savings Plans: A flexible pricing model that offers low prices like RIs in exchange for a commitment to a consistent amount of usage (measured in $/hour).
  • Spot Instances: Take advantage of unused EC2 capacity for up to a 90% discount. Perfect for fault-tolerant applications and batch processing.

Example Calculation: Running a Web Server

If you run a t3.medium instance (approx. $0.0416/hour) for 24 hours a day with a 50GB EBS volume:

  1. Monthly Compute: $0.0416 * 730 hours = $30.37
  2. Monthly Storage: 50GB * $0.10 = $5.00
  3. Total: $35.37 per month.

By switching to a 3-year Reserved Instance, that same compute cost could drop from $30.37 to roughly $12.00 per month.

Pro Tip: Always check the specific pricing for your AWS Region (e.g., us-east-1 vs. af-south-1), as prices can vary by 20% or more depending on the geographic location of the data center.

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