Object Storage Cost Calculator
Put in what you store and what you serve, and see all five major object storage providers priced side by side. Egress is where the money goes, so it is weighted properly here. Rates verified 6 August 2026.
| Provider | Storage | Operations | Egress | Monthly |
|---|
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Working out that you are overpaying is the easy half. Moving hundreds of gigabytes without breaking the things that reference it is the half that eats a fortnight. We do storage migrations as a fixed-scope piece of work, including the audit, the transfer and the cutover.
Talk to us about a migrationRates used in this comparison
Every figure below was checked against the provider's own published pricing page on 6 August 2026. Storage is converted at 1 TB = 1,000 GB, which is how all five vendors quote it.
| Provider | Storage | Egress |
|---|---|---|
| Cloudflare R2 | $0.015 / GB | $0.00 |
| Amazon S3 Standard | $0.023 / GB | $0.09 → $0.05 / GB |
| Google Cloud Storage | $0.020 / GB | $0.12 → $0.08 / GB |
| Backblaze B2 | $6.95 / TB | $0.01 / GB * |
| Wasabi | $7.99 / TB | $0.00 * |
* Backblaze includes free egress up to three times stored data, then charges $0.01 per GB. Wasabi does not meter egress but applies a fair-use expectation that monthly downloads stay under your stored volume, and bills a 1 TB monthly minimum. Amazon and Google figures are list prices for US East regions and exclude any committed-use or enterprise discount you may already have.
Why storage bills are really egress bills
Almost everyone picks an object storage provider by comparing the per-gigabyte storage rate, and almost everyone is then surprised by the invoice. The storage line is the small one. On a workload that serves real traffic, the cost of sending data back out dwarfs the cost of keeping it, and the gap widens every time your content gets more popular. Success becomes a bill.
The arithmetic is unforgiving. Five terabytes on Amazon S3 costs about $115 a month to store. Serving twenty terabytes of that data to the internet costs roughly $1,700. The storage you agonised over is six per cent of what you actually pay, and the part nobody modelled is the other ninety-four.
This is why the egress-free providers exist and why they are worth taking seriously. Cloudflare R2 charges nothing to read data out, at any volume. Backblaze gives you three times your stored data free before charging a cent per gigabyte. Wasabi meters nothing but expects you to stay roughly within your stored volume. Each removes the variable that makes cloud bills unpredictable, though each does it with different strings attached.
The catch is that egress-free is not the same as cheap for every shape of workload. A cold backup archive that is written constantly and almost never read will do better on raw storage price, where Backblaze wins outright. A busy media library read far more than it is written is where R2 pulls decisively ahead. Put your real numbers in above rather than trusting a rule of thumb, because the ranking genuinely flips depending on the ratio.