Backblaze B2 pricing
How Backblaze B2 charges, what to know before you commit, and what you'd pay at your usage — next to what the alternatives would cost for the same thing.
How it charges
Checked 2026-10-03 on www.backblaze.com ↗ · USD, list pricesIn short
$6.95 per TB per month of storage with the first 10 GB free; downloads are free up to three times what you store.
- Free plan
- Yes
- Side project
- $0/mo B2 pay-as-you-go
- Growing
- $0.63/mo B2 pay-as-you-go
- Scaling
- $35/mo B2 pay-as-you-go
What the model leaves out
$6.95/TB/month (= $0.00695/GB); first 10 GB free. Egress is free up to 3× your average monthly stored data, then $0.01/GB — the model can't tie the allowance to storage, so egress is shown as free; add $0.01/GB for anything above 3× what you store. Egress through partner CDNs (Cloudflare, Fastly, bunny.net…) is free. Class D API calls cost $0.004 per 10,000 after 2,500/day (not modelled).
Before you commit
- Downloads beyond 3× your average monthly stored data cost $0.01/GB, unless they go through a partner CDN or compute provider such as Cloudflare, Fastly or bunny.net.
- Class D API calls cost $0.004 per 10,000 after the first 2,500 a day; Class A, B and C calls are free.
- Storage is billed per byte-hour across the month, at $6.95 per TB per 30 days.
| Plan | Monthly fee | Stored |
|---|---|---|
| B2 pay-as-you-go | None | 10 GB includedthen $0.00695 per GB |
What you'd pay
Usage only some alternatives charge for
B2 pay-as-you-go90 GB × $0.00695 per GB$0.63/mo
Cost as you grow
All file storage pricing, compared →Which one fits your situation →