Free Cloud Planning Tool

Cloud Server Calculator

Estimate practical vCPU, RAM, storage, backup capacity and monthly runtime for a cloud server workload. Use the result as a planning baseline before comparing Google Cloud, Microsoft Azure, AWS or Systron infrastructure.

  • ✔ No registration
  • ✔ Runs in your browser
  • ✔ No data uploaded
  • ✔ Free to use
vCPU 4 Cores RAM 8 GB Storage 160 GB Backup 320 GB

Workload Requirements

Choose the profile closest to your workload, then adjust the values to match your environment.

Users actively generating requests at the busiest time.
30%
Extra capacity for traffic spikes, growth and operating-system overhead.
730 hours approximates a continuously running month.
General Purpose

Recommended Baseline

Recommended vCPU 2
Recommended RAM 4 GB
Primary Storage 120 GB
Estimated Backup Capacity 180 GB
Planning estimate only. Real requirements depend on application code, caching, database queries, traffic pattern, storage IOPS, operating system, redundancy and provider architecture. Benchmark production workloads before final sizing.

Optional Monthly Cost Model

Enter rates from any provider quote or price list. Leave a field at zero if you do not want it included.

Estimated Monthly Cost 0.00
Currency is intentionally not fixed. Enter all rates in the same currency and the total will use that currency. Taxes, discounts, reserved/committed pricing, support, IP charges, requests, snapshots and other provider charges are not automatically included.
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How to use the result

Turn a Requirement Estimate Into a Cloud Plan

1. Start With Resources

Use the recommended vCPU and RAM as an initial specification, then compare similar instance sizes across providers.

2. Separate Storage

Cloud storage cost and performance depend on disk type, capacity, IOPS, snapshots and access pattern—not capacity alone.

3. Validate With Monitoring

After deployment, monitor CPU, memory, disk latency and application response time and resize based on observed usage.

What the Calculator Considers

Input How it affects the estimate Why it matters
Workload Type Sets an initial CPU and memory profile. A database server usually needs a different balance than a small website.
Peak Concurrent Users Increases compute and memory requirements in steps. Peak demand matters more than monthly visitor count for server sizing.
Workload Intensity Applies an additional multiplier to CPU and RAM. Dynamic code, uncached requests, analytics and heavy queries consume more resources.
Headroom Adds spare CPU, RAM and storage. Production servers need capacity for bursts, updates and growth.
Backup Retention Produces an approximate backup-capacity figure. Retention length and change rate can materially affect storage requirements.
Availability Model Adjusts cost-model compute multiplier. Standby or highly available designs require additional infrastructure.

Compare the Same Baseline Across Cloud Platforms

Once you have a resource baseline, you can compare equivalent configurations across public-cloud and managed infrastructure offerings.

Next calculators: dedicated provider calculators will eventually use provider-specific pricing and architecture inputs rather than the generic rate fields used here.
Google Cloud Microsoft Azure AWS Cloud Managed Cloud Services

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