Backblaze B2 + Computer Backup
Backblaze
- Unlimited PC backup
- B2 buckets
Software and business calculator
Backup storage calculator
People sizing cloud backup from endpoints and retention. The decision this page isolates is narrow on purpose: estimate versioned backup capacity from computers and retention. Seats, volume, and included limits usually decide the class before a brand name does.
This page produces an explainable category or size so options can be compared without a product ranking. The calculator does not rank Backblaze, IDrive, and pCloud. It produces an explainable class so Backblaze B2 + Computer Backup, IDrive 5 TB, and pCloud 2 TB can be compared as examples of that class.
The working method is: Multiply endpoints by gigabytes each and a version-retention factor. Planning notes are grounded in pCloud. Compressed and already-backed-up data can be much smaller.
How to use this calculator
People sizing cloud backup from endpoints and retention. Estimate versioned backup capacity from computers and retention. If you can answer computers or servers, gigabytes per endpoint, and version retention factor, this page can produce a class you can shop against.
What this page will not do
- Compressed and already-backed-up data can be much smaller.
- Restore time and ransomware versions need a separate check.
- Provider specifications and program terms can change and must be verified on official pages.
Enter the planning inputs
Estimate backup volume by recording computers or servers, gigabytes per endpoint, and version retention factor. Use real measurements or counts, not a rounded marketing number.
Keep optional extras off until they are real
This tool has no optional add-ons. If a number is uncertain, calculate a range and keep the more conservative class.
Read the capacity category
Calculate storage and treat the headline as a class, not a product name. Matching examples below follow 500 gb, 2 tb, 5 tb, and 10 tb.
Compare official pages, then verify
Open the official page for each example in that class. Confirm current specifications, dimensions, and terms. Decision Lantern does not quote a live price or complete an install review.
Planning classes on this page
- 500 gb
- Example: Backblaze B2 + Computer Backup
- 2 tb
- Example: Backblaze B2 + Computer Backup, IDrive 5 TB, pCloud 2 TB
- 5 tb
- Example: Backblaze B2 + Computer Backup, IDrive 5 TB, pCloud 2 TB
- 10 tb
- Example: Backblaze B2 + Computer Backup, IDrive 5 TB
Capacity category
2 TB class
1,500 GB estimated
Compare options with at least:
- At least 1,500 GB of versioned backup
- 3 endpoints
- 2× retention factor
Example products for Backup storage calculator
Real products that fit this planning category. Specs come from the manufacturer’s product page. These are examples, not rankings. The links are official product pages—not affiliate links yet.
IDrive 5 TB
IDrive
- 5 TB
- Multi-device
pCloud 2 TB
pCloud
- 2 TB cloud drive
- Optional crypto
Compare the official examples
The table below is a side-by-side of the official examples on this page. Columns are published facts—maker, planning class, and notes taken from the official page—not scores. Backblaze B2 + Computer Backup, IDrive 5 TB, and pCloud 2 TB are included so you can see how classes differ, then open the official page for the current specification.
| Example | Maker | Planning classes | Published notes | Official page |
|---|---|---|---|---|
| Backblaze B2 + Computer Backup | Backblaze | 500 gb, 2 tb, 5 tb, 10 tb | Unlimited PC backup; B2 buckets | Backblaze B2 + Computer Backup official page |
| IDrive 5 TB | IDrive | 2 tb, 5 tb, 10 tb | 5 TB; Multi-device | IDrive 5 TB official page |
| pCloud 2 TB | pCloud | 2 tb, 5 tb | 2 TB cloud drive; Optional crypto | pCloud 2 TB official page |
Which example fits which class
Backblaze B2 + Computer Backup
Backblaze
Backblaze B2 + Computer Backup from Backblaze is an example in the 500 gb, 2 tb, 5 tb, and 10 tb class. Published notes on the official page include Unlimited PC backup and B2 buckets. Keep it in the shortlist when your result lands in that class, then confirm the current specification before you buy.
IDrive 5 TB
IDrive
IDrive 5 TB from IDrive is an example in the 2 tb, 5 tb, and 10 tb class. Published notes on the official page include 5 TB and Multi-device. Keep it in the shortlist when your result lands in that class, then confirm the current specification before you buy.
pCloud 2 TB
pCloud
pCloud 2 TB from pCloud is an example in the 2 tb and 5 tb class. Published notes on the official page include 2 TB cloud drive and Optional crypto. Keep it in the shortlist when your result lands in that class, then confirm the current specification before you buy.
What to verify before you buy
- Confirm the current specification on the official product or plan page.
- Match the planning class to your measured inputs, not to a brand preference.
- Compressed and already-backed-up data can be much smaller.
- Restore time and ransomware versions need a separate check.
- Recheck this page after 2026-11-14 or sooner if a manufacturer changes a published rating.
How this estimate works
Multiply endpoints by gigabytes each and a version-retention factor.
Know the limits
- Compressed and already-backed-up data can be much smaller.
- Restore time and ransomware versions need a separate check.
- Provider specifications and program terms can change and must be verified on official pages.
Frequently asked questions
How does the backup storage calculator work?
It converts computers or servers, gigabytes per endpoint, and version retention factor into a planning class using a published rule. Multiply endpoints by gigabytes each and a version-retention factor. The headline is a class such as 500 gb, 2 tb, 5 tb, and 10 tb, not a vendor ranking.
Is Backblaze B2 + Computer Backup better than IDrive 5 TB?
This page does not rank Backblaze B2 + Computer Backup, IDrive 5 TB, and pCloud 2 TB. Backblaze B2 + Computer Backup and IDrive 5 TB are listed because they are real products with official pages that map to different or overlapping classes. The useful question is which class matches your inputs.
Can I treat the result as a buying recommendation?
Compressed and already-backed-up data can be much smaller. Use the class to decide what to read next, then verify fit, terms, and installation requirements on the official page and with a qualified installer when the product needs one.
Do the product links earn Decision Lantern a commission?
Not on the current preview. Links go to official manufacturer or service pages. If compensated links are added later, the disclosure on this page will say so in plain language.
What should I verify after I get a class?
Confirm the current specification, dimensions or plan limits, and any program terms on the official page. Restore time and ransomware versions need a separate check. The next editorial review for this page is due 2026-11-14.
Why these 3 examples?
They are real software and business options with an affiliate program on file and an official product page. Backblaze, IDrive, and pCloud appear because each one can represent at least one planning class on this page, not because Decision Lantern tested or endorsed them.
Sources
- pCloud storage plans, pCloud. Retrieved .
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