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Backblaze B2 costs $6.95 to $15 per TB / mo as of July 2026, with 6 plans available. Plans: B2 Cloud Storage at $6.95/TB / mo, and B2 Overdrive at $15/TB / mo. Pricing depends on your chosen tier, contract length, and negotiated discounts.

Use the interactive pricing calculator to estimate your exact cost based on team size and requirements.

  • Free tier: No free tier available

Backblaze B2 offers 6 pricing tiers: B2 Cloud Storage, B2 Reserve, B2 Reserve, B2 Reserve, B2 Reserve, B2 Overdrive. Paid plans include B2 Cloud Storage at $6.95/TB / mo, B2 Overdrive at $15/TB / mo.

Last verified: | Sources: 1 pricing pages and reviews
Know Before You Buy — See Backblaze B2 Plans

Backblaze B2 lists $6.95-$15/TB / mo, but hidden costs like implementation and support add to the total as of July 2026. Key hidden costs: egress / download fees above free threshold, api transaction fees, byte-hour billing can surprise new users. Verified from 1 sources by CostBench.

Hidden Costs Breakdown

1

Egress / Download Fees Above Free Threshold

high overage

Backblaze B2 charges $0.01/GB for egress that exceeds 3x your monthly average stored data. Users who serve high volumes of downloads (streaming, CDN without a partner) can incur significant unexpected charges. One user reported their directory listing alone cost $3,000/month.

reddit

Egress above 3x monthly average storage is also free through many CDN and compute partners; otherwise, overage is billed at $0.01 per GB. That monthly average gets a lot of people in trouble.

reddit

Be VERY careful with BackBlaze pricing. Their pricing for us JUST to do the _directory listing_ needed for us to do our nightly backups was $3000/mo. I confirmed this with their support and dropped them on the spot.

2

API Transaction Fees

medium overage

Backblaze charges for certain API call classes (Class B and Class C operations) beyond daily free allowances. Heavy API usage patterns — such as frequent directory listings or automated backup software making many small requests — can trigger unexpected transaction charges.

reddit

They also charge a very nominal amount for certain API calls beyond certain limits (if your usage is below that limit the calls are free). See https://www.backblaze.com/cloud-storage/transaction-pricing

reddit

storage charges apply to all data after the first 10GB in your account at the rate of $0.006/GB/month

3

Byte-Hour Billing Can Surprise New Users

low overage

Backblaze charges by the byte-hour, not a flat monthly rate. If you upload 1TB on the last day of the month, your average stored data for that month is much lower — but your bill the following month will be higher as data accumulates. Users often misunderstand the 'starts at $6/TB/month' headline as a minimum monthly charge.

reddit

Backblaze charges by the byte-hour, so even if you uploaded 1TB today, your monthly average storage would not be 1TB yet, because it's only been a single day.

reddit

I'm looking at https://www.backblaze.com/cloud-storage/pricing and it says 'starts at $6/TB/month', which confuses me - if I put 10 GB there, will I pay $6 anyway, or 6 cents

4

NAS / Business Plan Upgrade Required

medium addon

Backblaze's consumer unlimited backup plan ($99/year) only covers individual computers with directly attached storage. Users with a NAS must use B2 Cloud Storage at $6/TB/month instead of the flat-fee personal backup plan, which significantly increases costs for large NAS libraries.

reddit

BackBlaze use to be a good option. But if you use a NAS for Plex it jumps up to a Business plan with becomes a lot more expensive.

reddit

circumvent, or attempt to circumvent, storage space limits or pricing. use the Backblaze system in a manner inconsistent with its intended manner or purpose.

5

Monthly Average Storage Billing Complexity

medium overage

Backblaze B2 bills by byte-hour (monthly average stored), not peak storage. Users who upload large amounts of data mid-month will not see the full storage cost reflected immediately, but costs compound over time. New users often underestimate their actual monthly bill.

reddit

Backblaze charges by the byte-hour, so even if you uploaded 1TB today, your monthly average storage would not be 1TB yet, because it's only been a single day.

reddit

Full disclosure, in case you don't look at my profile - I'm a Backblaze employee. Backblaze charges per byte-hour, and the first 10 GB is always free, so for 100 GB for a month, you'd pay 0.09 * $6 = $0.54 for the storage.

6

GST/VAT Surcharges for Non-US Users

low addon

Users outside the US (particularly India and Philippines) report that Backblaze pricing is significantly higher when GST or VAT is applied, reducing its competitiveness versus advertised rates.

reddit

That's way cheaper than mine. Naka-Backblaze ako pero ang mahal niya at 588 for month for 1.5TB. Naka-USD pricing pa ako kaya mas mahal minsan.

reddit

I'm in the same situation... factoring in GST, Backblaze is no longer as affordable as I had hoped.

Frequently Asked Questions

01 What hidden costs should I budget for with Backblaze B2?

Beyond the license fee, budget for: Egress / Download Fees Above Free Threshold ($0.01/GB above free threshold); API Transaction Fees (5-15% of storage costs); Byte-Hour Billing Can Surprise New Users (varies by upload timing); NAS / Business Plan Upgrade Required ($6/TB/month for NAS vs $99/year unlimited for PC); Monthly Average Storage Billing Complexity ($6/TB/month on actual stored average); GST/VAT Surcharges for Non-US Users (10-30% of license costs). Exact totals depend on your deployment size and negotiated terms.

02 Does Backblaze B2 charge for implementation?

Implementation costs for Backblaze B2 vary by deployment size and customization. Contact the vendor or check our sourced hidden-cost breakdown above for verified figures.

03 How much does Backblaze B2 support cost?

Premium support pricing for Backblaze B2 depends on your tier and contract terms. See the sourced cost breakdown above for any verified figures we have.

04 Are there overage or storage costs with Backblaze B2?

Backblaze B2 charges $0.01/GB for egress that exceeds 3x your monthly average stored data. Estimated impact: $0.01/GB above free threshold.

05 What add-ons cost extra with Backblaze B2?

Add-on pricing for Backblaze B2 varies by feature. The sourced cost breakdown above lists any verified add-on costs we have.

Now You Know the Real Cost — See Backblaze B2 Plans

Check current Backblaze B2 pricing

Prices and terms change; verify against the live pricing page.

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