Cloud Storage Cost Calculator

Enter how many gigabytes you store and download each month, set your provider's $/GB rates (or pick a preset), and see your estimated monthly and yearly cloud storage bill instantly. Everything runs in your browser — nothing is uploaded.

📖 How it works & FAQ

Provider preset (fills the rate fields — edit them freely)

Data stored (GB per month)

Storage price ($ per GB per month)

Egress / downloads (GB per month)

Egress price ($ per GB)

What cloud storage really costs

Cloud storage bills have two main moving parts. The first is storage itself: you pay a small rate per gigabyte for every GB sitting in a bucket each month, such as roughly $0.023/GB for Amazon S3 Standard. The second — and the one that surprises people — is egress, the fee charged every time data leaves the provider's network and travels to your users, often around $0.09/GB. A modest archive that nobody downloads is cheap; a small library that gets downloaded constantly can cost far more in egress than in storage. This calculator multiplies your stored GB by your storage rate, adds egress GB times your egress rate, and shows the monthly total plus a yearly projection so you can compare providers side by side. These are estimates only, not professional or financial advice; real rates, tiers, and fees vary by provider, region, and usage.

How to use it

Pick a provider preset to load typical published rates, or choose Custom and type your own.
Enter how many gigabytes you keep stored in an average month.
Enter how many gigabytes are downloaded or transferred out per month.
Adjust the $/GB rates to match your actual pricing tier — the results update live.
Read the monthly and yearly totals, with the storage/egress split shown underneath.

FAQ

Why is egress so expensive compared to storage?: Providers price outbound bandwidth much higher than storage at rest. If your workload is download-heavy, egress usually dominates the bill, which is why some providers advertise free or near-free egress.
Does this include API request fees or minimum storage durations?: No. Per-request charges, retrieval fees on cold tiers, and minimum-duration penalties are excluded here. For most standard-tier workloads they are small, but check your provider's pricing page.
Are the preset rates always current?: They reflect commonly published list prices, but providers change pricing and offer regional and tiered discounts. Treat presets as starting points and edit the rate fields to match your invoice.
Is my data uploaded anywhere?: No. The whole calculation runs in your browser — nothing you type is sent to a server.