EXECUTE / FILE 14

Live TCO calculator (monthly list price)

All prices are list, US, checked 2026-10-14, from the price-input table above. Edit src/data/pricing.json to update. 1 TB = 1,000 GB. Egress-heavy totals will not match a customer's bill if they have negotiated discounts or EDP rates: rerun with their effective rates.

Stored data (TB, monthly average) Egress to internet (TB / month) % of egress to B2 partner destinations Avg object size (MB) PUTs / month (writes)

Presets matching the worked tables:

Assumptions, labeled: GET count is derived as egress bytes divided by average object size (same method as the worked tables, 8 MB default). B2 transaction Classes A, B, C are free; Class D is not modeled. AWS figures are us-east-1 S3 Standard; GET requests use $0.0004/1K and PUTs $0.005/1K. Partner-destination egress is modeled at $0 for B2 only [verify with Backblaze whether partner egress counts toward the 3x pool]; other providers bill all egress. Wasabi free egress is conditional on fair use (egress at or below stored). Overdrive is the published floor; real price is negotiated with a multi-PB commit. Requests are excluded from the worked tables except R2 reads; this calculator adds them, so totals can differ by a few dollars. Sources: B2, Overdrive, AWS S3 [re-verify on AWS calculator before customer use], Wasabi, Cloudflare R2.

14. TCO and economics

Every number comes from them. Formulas on the board, inputs from their bill, sources in the footer. Never a universal savings claim.

Price inputs (list, US, checked 2026-10-14)

Provider	Storage	Egress to internet	Requests	Minimums	Source
Backblaze B2	$6.95/TB/mo	Free to 3x avg stored, then $0.01/GB; unlimited free via partners	A/B/C free; Class D $0.004/10K after 2,500/day	None	backblaze.com/cloud-storage/pricing ; /transaction-pricing
B2 Overdrive	from $15/TB/mo	Unlimited free, any destination	Free	Multi-PB commit	backblaze.com/cloud-storage/b2-overdrive
AWS S3 Standard (us-east-1)	$0.023/GB first 50 TB, $0.022 next 450 TB, $0.021 over 500 TB	First 100 GB free; $0.09/GB next 10 TB; $0.085 next 40 TB; $0.07 next 100 TB; $0.05 over 150 TB	PUT/COPY/POST/LIST $0.005/1K; GET $0.0004/1K	None for Standard; IA/Glacier have minimum durations and sizes	aws.amazon.com/s3/pricing (page JS-rendered; figures cross-checked via upstash.com and cloudburn.io 2026 summaries) [re-verify on AWS calculator before customer use]
Wasabi PAYG	$7.99/TB/mo	“No fees for egress”, subject to fair-use policy	No API fees	90-day minimum storage duration on PAYG [verify current terms]	wasabi.com/pricing
Cloudflare R2 Standard	$0.015/GB-mo ($15/TB)	Free	Class A $4.50/M; Class B $0.36/M	IA class has minimum duration and $0.01/GB retrieval	developers.cloudflare.com/r2/pricing (last updated Oct 1 2026)
Azure Blob Hot LRS (East US)	~$0.0208/GB first 50 TB; $0.020 next 450 TB	~$0.087/GB first 10 TB [unverified]	Write $0.055/10K; read $0.0044/10K	Cool/Cold/Archive minimum durations	learn.microsoft.com estimate-costs page sample table [sample prices; verify on Azure calculator]
GCS Standard regional (US)	~$0.020/GB ($0.000027397/GiB-hr)	~$0.12/GB first TB tiers [unverified]	Class A/B per 1K	Nearline 30d, Coldline 90d, Archive 365d minimums	cloud.google.com/storage/pricing

Units: this guide uses 1 TB = 1,000 GB for all providers so the math is comparable. AWS and others bill in GB (some in GiB). Differences are under 10 percent and do not change conclusions.

The formulas

B2 standard

B2_month = S × 6.95 + max(E_internet − 3S, 0) × 1,000 × 0.01 + ClassD
  S = average stored TB
  E_internet = egress TB to non-partner destinations
  partner egress (Cloudflare, Fastly, CoreWeave, Vultr, ...) = $0

Note: Backblaze says partner egress is free and “egress above 3x … is also free through many CDN and compute partners.” Model partner egress as $0. [verify with Backblaze whether partner egress counts toward the 3x pool]

B2 Overdrive

OD_month = S × 15   (list floor; real price is negotiated; multi-PB commit)

AWS S3 Standard

S3_month = tiered_storage(S) + tiered_egress(E) + PUTs/1000×0.005 + GETs/1000×0.0004

Wasabi

W_month = S × 7.99   (valid only while egress ≤ stored, per fair-use; above that Wasabi may require a different plan)

Cloudflare R2

R2_month = S × 15 + ClassA_millions × 4.50 + ClassB_millions × 0.36

Overdrive break-even: 6.95S + 10(E − 3S) = 15S → E = 3.805S. R2 break-even vs B2 (ignoring R2 ops): 6.95S + 10(E − 3S) = 15S → same 3.8x. With R2 ops added, the crossover shifts higher.

Worked examples (monthly, list prices, storage + egress; requests excluded except R2 reads)

Assumptions: all egress to non-partner internet destinations; AWS us-east-1 tiers; R2 reads computed at 8 MB average object (reads = egress_bytes / 8 MB); Wasabi flat. Script: research/tco.py.

100 TB stored

Egress / month	B2	AWS S3	Wasabi	R2
10% (10 TB)	$695	$3,141	$799	$1,500
50% (50 TB)	$695	$6,542	$799	$1,502
100% (100 TB)	$695	$10,043	$799	$1,504
300% (300 TB)	$695	$21,045	$799 (beyond fair use)	$1,514
500% (500 TB)	$2,695	$31,045	n/a (beyond fair use)	$1,522

AWS breakdown at 100 TB / 10% egress: storage 50,000 × 0.023 + 50,000 × 0.022 = $2,250; egress (10,000 − 100) GB × 0.09 = $891.

1 PB stored

Egress / month	B2	AWS S3	Wasabi	R2
10% (100 TB)	$6,950	$29,343	$7,990	$15,004
50% (500 TB)	$6,950	$50,345	$7,990	$15,022
100% (1 PB)	$6,950	$75,345	$7,990	$15,045
300% (3 PB)	$6,950	$175,345	n/a	$15,135
500% (5 PB)	$26,950	$275,345	n/a	$15,225

AWS storage at 1 PB: 50 TB × 23 + 450 TB × 22 + 500 TB × 21 = $1,150 + $9,900 + $10,500 = $21,550.

10 PB stored

Egress / month	B2	B2 Overdrive (list floor)	AWS S3	Wasabi	R2
10% (1 PB)	$69,500	$150,000	$264,345	$79,900	$150,045
100% (10 PB)	$69,500	$150,000	$714,345	$79,900	$150,450
300% (30 PB)	$69,500	$150,000	$1,714,345	n/a	$151,350
500% (50 PB)	$269,500	$150,000	$2,714,345	n/a	$152,250

3-year view at 10 PB, 10% egress: B2 $2.50M; AWS $9.52M; difference ≈ $7.0M before discounts. Hyperscaler EDP discounts commonly reduce list prices [discount levels vary; ask the customer], so always restate with their effective rates.

What the tables really say (be honest in the room)

B2 wins on storage plus moderate egress. Up to 3x read multiple, B2 is the lowest list price of the five.
Wasabi is close on storage ($7.99 vs $6.95, about 15 percent more) but its free egress is conditional on fair use (egress at or below stored) and PAYG has a minimum retention period. Position B2 on egress headroom (3x vs 1x) and no minimum duration.
R2 wins at very high internet egress (above roughly 4x per month without a partner CDN) because egress is always free. But R2 storage is more than 2x B2, and Class A ops at $4.50/M punish write-heavy and small-object workloads. Counter with Overdrive (unlimited egress) at multi-PB, or partner CDN egress at $0.
AWS is dominated by egress. At 1 PB with 100% monthly egress, egress is 71 percent of the bill.
Overdrive makes sense above ~3.8x read multiple or when dedicated throughput is the requirement.

Scenario cards (copy to the whiteboard)

Backup with annual full restore test, 300 TB:

B2: 300 × 6.95 × 12 = $25,020/yr. Restore test of 300 TB = 1x stored, inside 3x free. $0 egress.
AWS S3 Standard: storage 50,000 × 0.023 + 250,000 × 0.022 = $6,650/mo → $79,800/yr; plus one 300 TB restore egress ≈ $18,795 (100 GB free, 10 TB @ $0.09 = $900, 40 TB @ $0.085 = $3,400, 100 TB @ $0.07 = $7,000, 149.9 TB @ $0.05 = $7,495). Total ≈ $98,595/yr.
AWS Glacier Deep Archive would be far cheaper to store (~$0.00099/GB) but has 180-day minimum, 12+ hour restores, retrieval fees, and the same egress. Say so.

Media library, 1 PB, 20% monthly reuse, delivery via Cloudflare:

B2: $6,950/mo storage; archive pulls 200 TB inside 3x; CDN origin egress $0.
S3 Standard: $21,550 storage + 200 TB egress ≈ $13,795 = $35,345/mo.

AI corpus, 5 PB, 4 full reads/month from a non-partner GPU cloud:

B2 standard: 5,000 × 6.95 + (20,000 − 15,000) × 10 = $34,750 + $50,000 = $84,750/mo.
B2 Overdrive: 5,000 × 15 = $75,000/mo, plus dedicated throughput. Overdrive wins.
If the GPU cloud is CoreWeave or Vultr (partner): B2 standard egress $0 → $34,750/mo.

TCO beyond the invoice (ask, do not assume)

Line	On-prem	Hyperscaler	B2
Hardware refresh (3 to 5 yr)	Yes	No	No
Support contracts	Yes	Included / support plan	Premium support add-on
Power, space, cooling	Yes	No	No
Admin FTE time	High	Medium (tiering, lifecycle tuning)	Low (single class)
Data migration in	n/a	Egress from source	UDM can subsidize with commit
Exit cost	Hardware disposal	Egress	Egress (3x free/month helps)

Commit structures

PAYG monthly: card or invoice, no commitment.
Capacity term 1 to 5 years: billed in full at contract start, rate locked, volume and term discounts. Ask Backblaze deal desk for discount bands; none are public.
Overdrive: multi-PB commitment.

Landmines

Do not compare B2 to S3 Glacier on storage alone. Compare total cost of a real restore.
Do not claim “1/5 the cost of AWS” without context. Backblaze uses that line on its Veeam page. It holds for storage vs S3 Standard list (6.95/23 ≈ 30 percent, i.e. about 1/3.3) only with egress included. Use your own math.
Prices change. Wasabi moved from $6.99 to $7.99 (Jul 1 2026 per company notes); B2 moved from $6.00 to $6.95. Re-check before every proposal and write the check date on the slide.