FinToolSuite

Cloud Storage Cost Calculator

Updated April 17, 2026 · Utilities · Educational use only ·

Monthly and annual cost of cloud storage by tier.

Calculate total cloud storage cost per month and year across storage, egress, and API usage. Enter storage gb to see total monthly and annual cost.

What this tool does

Enter monthly storage GB, price per GB, egress GB, and egress price. The tool shows total monthly and annual cost.


Enter Values

Formula Used
Monthly storage
Price per GB stored
Data out per month
Price per GB egressed

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Disclaimer

Results are estimates for educational purposes only. They do not constitute financial advice. Consult a qualified professional before making financial decisions.

Cloud storage has three cost levers: storage, egress, and operations. Storing 1TB at 0.02/GB is 20/month. Downloading that 1TB out at 0.08/GB is 80 — one egress event. For backup workloads egress rarely hits; for active workloads it can dominate the bill. Modelling both sides prevents surprises.

Run it with sensible defaults

Using storage of 1,000, storage rate per gb of 0.02, monthly egress of 100, egress rate per gb of 0.08, the calculation works out to 28.00. Nudge the inputs toward your own situation and the output recalculates instantly. The defaults are meant as a starting point, not a recommendation.

The levers in this calculation

The inputs — Storage (GB), Storage Rate per GB, Monthly Egress (GB), and Egress Rate per GB — do not pull with equal force. Frequency and unit price pull the total in different directions. The biggest surprise for most people is how small recurring amounts compound into large annual figures — that's where this calculation earns its keep.

How the math works

Storage × rate + egress × rate. Ignores operations charges (API calls) which are small for most workloads but can matter at scale. The working is transparent — you can verify every step yourself in the formula section below. No black box, no opaque "proprietary model".

Why run the calculation

Utility bills creep. Small annual increases stack into meaningful differences over a decade. Running this once a year and switching providers when the gap widens is one of the easiest ways to keep household costs in check.

What this doesn't capture

Usage varies month-to-month; tariffs change; discounts come and go. The figure here is a clean baseline — your actual annual bill will fluctuate around it. Use the calculation to benchmark providers, not as a prediction of a specific bill.

Example Scenario

Cloud storage cost produces a monthly total based on the inputs provided.

Inputs

Storage (GB):1,000
Storage Rate per GB:0.02 £
Monthly Egress (GB):100
Egress Rate per GB:0.08 £
Expected Result£28.00

This example uses typical values for illustration. Adjust the inputs above to match a specific situation and see how the result changes.

Sources & Methodology

Methodology

Storage × rate + egress × rate. Ignores operations charges (API calls) which are small for most workloads but can matter at scale.

Frequently Asked Questions

Why does egress cost so much?
Cloud providers price egress to discourage workload migration. Intra-region transfer is usually free; out-of-region and out-of-cloud is where the charges hit.
What about object storage tiers?
Cold storage (infrequent access) is 50-80% cheaper but with retrieval fees. For archival workloads that rarely read, cold tiers are dramatically cheaper.
Do free tiers help?
For small workloads yes. Most providers offer 5-15GB free, some more. For anything serious the free tier is marketing more than meaningful saving.
Is self-hosting cheaper?
At TB scale, often yes. Below 1TB and for anything needing availability guarantees, cloud usually wins on total cost once maintenance is included.

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