Estimate the monthly cost of an Azure Virtual Machine based on its configuration.
— Select Instance Type —
Standard_D2s_v3
Standard_D4s_v3
Standard_D8s_v3
Standard_E4s_v3
Standard_E8s_v3
Standard_B1s
Standard_B2s
Provides vCPU, RAM, and temporary storage details.
— Select OS —
Linux (Free)
Windows Server
Windows OS incurs an additional licensing cost.
Standard HDD/SSD size for the OS. Larger disks may cost more.
Assumes standard SSD for data disks.
— Select Region —
East US
West US
West Europe
Southeast Asia
Japan East
Pricing varies by Azure region.
Typical hours in a month (e.g., 730 for 24/7 operation).
Estimated Monthly Cost
$0.00
Understanding Azure Virtual Machine Pricing
Azure Virtual Machines (VMs) offer flexible, scalable computing resources in the cloud. Their pricing is influenced by several factors, which this calculator helps to estimate. The total cost is a sum of various components, primarily the compute cost, the OS license, and the storage costs.
Compute Cost: The VM Instance
The core of your VM cost is the instance type. Azure offers a wide range of VM series (like B-series, D-series, E-series) optimized for different workloads. Each series has specific configurations of:
vCPUs (Virtual Central Processing Units): The processing power allocated to your VM.
RAM (Random Access Memory): The system memory available for your applications.
Temporary Storage: Included fast, ephemeral storage for temporary files.
The price per hour for an instance type varies significantly based on its resources and optimization. Our calculator uses approximate rates for selected common instance types. For the most accurate pricing, always refer to the official Azure VM pricing page.
Operating System Licensing
Running Linux VMs typically incurs no additional OS licensing cost, as most distributions are open-source. However, running Windows Server on an Azure VM includes the cost of the Windows license, which is usually charged per hour or per core, depending on the VM size and your licensing agreement (e.g., Azure Hybrid Benefit).
Storage Costs
Storage is a crucial component and is priced separately:
OS Disk: Every VM requires an OS disk (managed disk). The size you choose impacts the cost. Azure offers different performance tiers (Standard HDD, Standard SSD, Premium SSD). Our calculator assumes a standard SSD for simplicity.
Data Disks: If your applications require additional storage beyond the OS disk, you'll provision data disks. The number and size of these disks, along with their performance tier, contribute to the total cost.
Storage pricing is generally based on the provisioned capacity (GB per month) and the type of disk (HDD, SSD, Premium SSD).
Azure Region
Microsoft operates datacenters worldwide in various Azure Regions. Due to differences in infrastructure, energy costs, and market demand, the prices for the same resources can vary across regions.
Usage (Hours per Month)
The final monthly cost is heavily dependent on how long you run your VM. Running a VM 24/7 for a full month (approximately 730 hours) will result in a higher cost than running it only during business hours. The calculator multiplies the hourly rate by the specified hours.
Calculation Logic
The estimated monthly cost is calculated as follows:
Compute_Hourly_Rate is determined by the selected Instance Type and Region.
OS_License_Hourly_Rate is added if Windows is selected.
Hours_Per_Month is the user-defined usage duration.
Storage_Monthly_Cost is the sum of the OS disk cost and data disk costs, based on size (GB) and type (assumed Standard SSD).
Disclaimer: This calculator provides an *estimate* based on typical pricing. Actual costs may vary due to fluctuating exchange rates, specific Azure offers, reserved instances, savings plans, and detailed resource utilization. Always consult the official Azure Pricing Calculator for definitive quotes.
// Approximate hourly rates for common VM instance types (USD/hour)
// These are simplified estimates and can vary by region and commitment.
var vmRates = {
"Standard_D2s_v3": { vcpu: 2, ram: 8, temp_storage: 50, base_rate: 0.095 },
"Standard_D4s_v3": { vcpu: 4, ram: 16, temp_storage: 100, base_rate: 0.190 },
"Standard_D8s_v3": { vcpu: 8, ram: 32, temp_storage: 200, base_rate: 0.380 },
"Standard_E4s_v3": { vcpu: 4, ram: 32, temp_storage: 100, base_rate: 0.150 },
"Standard_E8s_v3": { vcpu: 8, ram: 64, temp_storage: 200, base_rate: 0.300 },
"Standard_B1s": { vcpu: 1, ram: 1, temp_storage: 4, base_rate: 0.010 }, // Burstable
"Standard_B2s": { vcpu: 2, ram: 4, temp_storage: 16, base_rate: 0.020 } // Burstable
};
// Approximate OS license rates (USD/hour)
var osLicenseRates = {
"windows": 0.045, // Simplified Windows license cost per hour
"linux": 0
};
// Approximate storage rates (USD/GB/month) for Standard SSD
var storageRatesGBPerMonth = {
"os_disk": 0.08, // OS Disk (Standard SSD)
"data_disk": 0.08 // Data Disk (Standard SSD)
};
// Regional pricing multipliers (simplified – actual multipliers are complex)
var regionMultipliers = {
"eastus": 1.0,
"westus": 1.05,
"westeurope": 1.10,
"southeastasia": 1.15,
"japaneast": 1.12
};
function calculateAzureCost() {
var instanceType = document.getElementById("instanceType").value;
var osType = document.getElementById("osType").value;
var diskSize = parseFloat(document.getElementById("diskSize").value);
var dataDisks = parseInt(document.getElementById("dataDisks").value);
var dataDiskSize = parseFloat(document.getElementById("dataDiskSize").value);
var region = document.getElementById("region").value;
var hoursPerMonth = parseFloat(document.getElementById("hoursPerMonth").value);
var resultElement = document.getElementById("result");
var estimatedCostElement = document.getElementById("estimatedCost");
var costBreakdownElement = document.getElementById("costBreakdown");
// — Input Validation —
if (!instanceType || !osType || !region || isNaN(diskSize) || isNaN(dataDisks) || isNaN(dataDiskSize) || isNaN(hoursPerMonth)) {
resultElement.style.display = 'none';
return;
}
if (diskSize < 30) { // Minimum OS disk size is typically 30 GB
diskSize = 30;
document.getElementById("diskSize").value = 30;
}
if (dataDisks < 0) {
dataDisks = 0;
document.getElementById("dataDisks").value = 0;
}
if (dataDiskSize < 0) {
dataDiskSize = 0;
document.getElementById("dataDiskSize").value = 0;
}
if (hoursPerMonth 730) {
hoursPerMonth = Math.max(0, Math.min(730, hoursPerMonth)); // Clamp between 0 and 730
document.getElementById("hoursPerMonth").value = hoursPerMonth;
}
// — Calculations —
var vmInfo = vmRates[instanceType];
if (!vmInfo) {
resultElement.style.display = 'none';
return; // Invalid instance type selected
}
var regionMultiplier = regionMultipliers[region] || 1.0;
// Compute cost
var computeRatePerHour = vmInfo.base_rate * regionMultiplier;
var osRatePerHour = osLicenseRates[osType] ? osLicenseRates[osType] * regionMultiplier : 0;
var totalHourlyRate = computeRatePerHour + osRatePerHour;
var monthlyComputeAndOSCost = totalHourlyRate * hoursPerMonth;
// Storage cost
var osDiskCostMonthly = (diskSize / 1024) * storageRatesGBPerMonth.os_disk * 730; // Rough estimate based on provisioned GB pro-rated for hours
var totalDataDiskSize = dataDisks * dataDiskSize;
var dataDisksCostMonthly = (totalDataDiskSize / 1024) * storageRatesGBPerMonth.data_disk * 730; // Rough estimate
// Total cost
var totalMonthlyCost = monthlyComputeAndOSCost + osDiskCostMonthly + dataDisksCostMonthly;
// Format and display result
estimatedCostElement.textContent = "$" + totalMonthlyCost.toFixed(2);
var breakdown = `Compute (${instanceType}): $${monthlyComputeAndOSCost.toFixed(2)} | OS (${osType}): $${(osRatePerHour * hoursPerMonth).toFixed(2)} | OS Disk: $${osDiskCostMonthly.toFixed(2)} | Data Disks: $${dataDisksCostMonthly.toFixed(2)}`;
costBreakdownElement.textContent = breakdown;
resultElement.style.display = 'block';
}