Cloud Cost Calculator

Estimate monthly cloud infrastructure costs from compute, storage, and data transfer.

Number of instances

vCPUs per instance

RAM per instance (GB)

Hourly rate per instance ($)

Hours per month

Storage per instance (GB)

Storage price per GB ($)

Data transfer out (GB/mo)

Transfer price per GB ($)

Reserved/savings discount %

Tab to move between fields

Monthly (on-demand)

$454.35

≈ 8 tanks of gas

Monthly (with savings)

$454.35

≈ 8 tanks of gas

Annual (on-demand)$5,452.20

Annual (with savings)$5,452.20

Annual savings from reserved$0.00

Compute cost / month$379.44

Storage cost / month$30.00

Data transfer cost / month$44.91

Effective cost per vCPU-hr$0.05

How to Use This Calculator

Enter the number of Instances, vCPUs per Instance, and RAM per Instance (GB).
Input the On-Demand Hourly Rate and Hours per Month for the target compute tier.
Add Storage per Instance (GB) and Storage Price per GB.
Enter Data Transfer Out (GB/month) and Transfer Price per GB.
Set Reserved Discount % to compare on-demand vs. reserved instance pricing.
Review Total Monthly Cost and Annual Cost with and without reserved pricing.

How the result changes with Number of instances

Number of instances: Total compute instances (VMs, EC2, Droplets) running.
vCPUs per instance: Virtual CPUs per instance for cost-per-vCPU calculations.
RAM per instance (GB): Memory per instance (used for reference, pricing based on hourly rate).
Hourly rate per instance ($): On-demand hourly cost per instance (e.g., t3.xlarge ~$0.17/hr).
Hours per month: Hours each instance runs per month (744 = 24/7, lower for dev/staging).
Storage per instance (GB): EBS/block storage attached per instance.
Storage price per GB ($): Monthly cost per GB of block storage (gp3 ~$0.08, io2 ~$0.125).
Data transfer out (GB/mo): Monthly outbound data transfer from cloud to internet.
Transfer price per GB ($): Price per GB of outbound data transfer (AWS ~$0.09).
Reserved/savings discount %: Discount from reserved instances or savings plans (1yr ~30%, 3yr ~60%).

Monthly (on-demand): Total monthly cost at on-demand pricing.
Monthly (with savings): Total monthly cost with reserved/savings discount applied to compute.
Annual (on-demand): Projected annual cost at on-demand rates.
Annual (with savings): Projected annual cost with reserved discount.
Annual savings from reserved: How much you save yearly by committing to reserved pricing.
Compute cost / month: Monthly compute charges (with discount if applicable).
Storage cost / month: Monthly block storage charges.
Data transfer cost / month: Monthly outbound data transfer charges.
Effective cost per vCPU-hr: All-in cost divided by total vCPU-hours.

Identify Input Parameters
4 parameters
Number of instances = 3, vCPUs per instance = 4, RAM per instance (GB) = 16, Hourly rate per instance ($) = 0.17 = 10 input(s) provided
Calculate Monthly
Monthly = computeOnDemand + storageCost + dataTransferCost
454.35 = $454.35
Calculate Monthly
Monthly = computeReserved + storageCost + dataTransferCost
454.35 = $454.35
Calculate Annual
Annual = monthlyOnDemand * 12
5452.2 = $5,452.2
Calculate Annual
Annual = monthlyReserved * 12
5452.2 = $5,452.2