NAS vs. Google Drive: 5-Year Cost Comparison
Google One costs less in total spend when you need 2TB or less. At 10TB and 20TB, the NAS reaches break-even after approximately 25 months and 23 months, respectively.
Prices and product specifications checked July 28, 2026. All figures are in U.S. dollars.
Quick Answer: Which Costs Less at 2TB, 10TB, and 20TB?
| Storage requirement | Five-year result | What changes the verdict |
|---|---|---|
| About 2TB | Google One: $499.95. NAS: $837.00 with 4TB usable. | Google One has the lower total. The NAS provides more usable capacity and a lower cost per decimal usable TB. |
| About 10TB | Google One: $2,999.40. NAS: $1,298.98 with 12TB usable. | The NAS reaches break-even after about 25 months under these assumptions. |
| About 20TB | Google One: $5,999.40. NAS: $2,413.81 with 24TB usable. | The NAS reaches break-even after about 23 months under these assumptions. |
This article focuses on cost. For the wider decision involving collaboration, privacy, internet dependence, and local performance, compare NAS and cloud storage beyond cost.
Google Drive, Google One, and Google Cloud Storage Are Different
Google Drive is the file storage, synchronization, and collaboration service people use for documents, folders, photos, and shared work. Every Google Account includes 15GB of storage shared across Google Drive, Gmail, and Google Photos.
Google One is the consumer subscription that increases this shared capacity.
Google Cloud Storage is an object-storage platform designed for applications, business data, backup, archive, and disaster recovery. It uses usage-based billing rather than a simple consumer subscription. The final bill may include storage, operations, retrieval, replication, retained versions, and data transfer.
This article therefore uses Google One for the 2TB, 10TB, and 20TB consumer comparisons.
How We Calculated the Costs
The pricing we're using is UGREEN NAS's regular retail price, not any temporary promotional or sale pricing:
- UGREEN NASync DH2300: $219.99
- UGREEN NASync DXP4800 Plus: $729.99
- UGREEN NAS 120W DC UPS: $124.99
The drive examples use Seagate IronWolf CMR NAS drives. Listed U.S. retail prices observed through B&H Photo were:
- 4TB ST4000VN006: $219 each
- 12TB ST12000VN0008: $449.99 each
Drive pricing and stock can change quickly. Before buying, confirm the exact drive model on the UGREEN NAS compatibility list.
Electricity is calculated at $0.182 per kWh, the U.S. Energy Information Administration’s forecast average residential rate for 2026. EIA’s Short-Term Energy Outlook is the source for that rate.
We modeled eight hours of drive access and 16 hours of drive hibernation per day:
- DH2300: 13.72W during drive access and 3.3W during drive hibernation
- DXP4800 Plus: 42.36W during drive access and 18.12W during drive hibernation
That produces an estimated annual electricity cost of $10.80 for the DH2300 and $41.77 for the DXP4800 Plus.
Taxes, shipping, independent backup, network upgrades, and replacement drives are excluded from the headline totals. A one-drive replacement contingency is shown separately after each comparison.
Google One Assumptions
We’re assuming these prices stay the same over a five-year period, and we’re not factoring in promotions, taxes, family plan cost-sharing, or the value of non-storage benefits. Keep in mind that higher-tier plan availability can vary by account and region, so double-check what’s actually available and the current pricing on the Google One plans page before you buy.
- 2TB: $99.99 per year
- 10TB: $49.99 per month
- 20TB: $99.99 per month
Google Cloud Storage Assumptions
The Google Cloud Storage calculation uses:
- Iowa single-region storage (
us-central1) - 10TB or 20TB of constant decimal stored data
- 730 hours per billing month
- No dual-region or multi-region replication
- No object version growth or soft-deleted-object growth
- Storage charges shown separately from operations, retrieval, and network egress
2TB Cost Comparison: Google One or a NAS?
Google One is the cheaper purchase when you need no more than about 2TB and want the lowest five-year cash outlay.
The NAS example uses a UGREEN NASync DH2300, two 4TB IronWolf drives, RAID 1, and a UPS.
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| Cost or capacity | Google One 2TB | DH2300 with two 4TB drives |
|---|---|---|
| Initial purchase | $99.99 annual subscription | $782.98 |
| Raw drive capacity | Not applicable | 8TB |
| Decimal usable capacity | 2TB plan quota | 4TB |
| Approximate NAS capacity in binary units | Not applicable | 3.64TiB before overhead |
| One-year total | $99.99 | $793.78 |
| Three-year total | $299.97 | $815.39 |
| Five-year total | $499.95 | $837.00 |
| Five-year cost per listed or decimal usable TB | $249.98 | $209.25 |
| Five-year total with one full-price drive replacement | Not applicable | $1,056.00 |
The NAS costs $322.05 more over five years in total spend, while delivering storage at $44.47 less per usable terabyte. Which number matters depends on whether you need the extra capacity.
The UPS is the most optional item in this configuration. Removing it lowers the five-year NAS total to $712.01 and narrows the gap to $212.06. We keep it in the headline figure because a NAS runs continuously and an unexpected shutdown during a write can damage a storage pool.
If one 4TB drive needs replacement during the five-year period, add $219 at the checked retail price. Replacement is a planning contingency, not a guaranteed expense.
10TB Cost Comparison: Google One or a Two-Bay NAS?
At 10TB, the subscription cost changes the result.
| Cost or capacity | Google One 10TB | DH2300 with two 12TB drives |
|---|---|---|
| Initial purchase | $49.99 monthly subscription | $1,244.96 |
| Raw drive capacity | Not applicable | 24TB |
| Decimal usable capacity | 10TB plan quota | 12TB |
| One-year total | $599.88 | $1,255.76 |
| Three-year total | $1,799.64 | $1,277.37 |
| Five-year total | $2,999.40 | $1,298.98 |
| Five-year total with one full-price drive replacement | Not applicable | $1,748.97 |
The NAS reaches break-even after approximately 25 months. By year five, its base total is $1,700.43 lower than the Google One subscription while providing 2TB more decimal usable capacity.
20TB Cost Comparison: Google One or a Four-Bay NAS?
For a library above 20TB, a four-bay NAS provides more efficient usable capacity than a two-drive mirror.
A UGREEN NASync DXP4800 Plus with three 12TB drives in RAID 5 has:
- 36TB raw capacity
- 24TB exact decimal usable capacity before overhead
- Approximately 21.8TB in a binary capacity display
- Protection against one drive failure while the array is healthy
| Cost or capacity | Google One 20TB | DXP4800 Plus with three 12TB drives |
|---|---|---|
| Initial purchase | $99.99 monthly subscription | $2,204.95 |
| Raw drive capacity | Not applicable | 36TB |
| One-year total | $1,199.88 | $2,246.72 |
| Three-year total | $3,599.64 | $2,330.26 |
| Five-year total | $5,999.40 | $2,413.81 |
| Five-year total with one full-price drive replacement | Not applicable | $2,863.80 |
The NAS reaches break-even after approximately 23 months. Its five-year base total is $3,585.60 lower than the Google One subscription.
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What Moves the Break-Even Point?
Growing from 2TB to 10TB changes the calculation sharply. A NAS can accept higher-capacity drives or additional drives within its model limits. Google One moves to a higher recurring tier.
Ownership Period
A subscription remains inexpensive during a short project. Hardware gains its cost advantage only when it stays in service long enough to spread the initial purchase across several years.
RAID Configuration
RAID 1 uses half the raw capacity. RAID 5 uses one drive’s worth of capacity for parity. A configuration with no redundancy costs less, but it does not provide the same drive-failure tolerance.
Electricity
Local electricity rates vary widely. Background services, heavy access, surveillance, containers, virtual machines, and other workloads that keep the drives awake will increase electricity use.
Backup Requirements
Neither Google One synchronization nor RAID is a complete backup strategy. Adding an external drive, a second NAS, or retained cloud backup increases cost. Compare systems built for the same recovery requirement rather than pricing a protected configuration against an unprotected one.
Drive Replacement and Warranty
Hard drives are consumable components. Warranty length depends on the exact drive model and purchase region.
Google Price Changes
The tables hold current subscription prices constant. A future price increase moves the break-even point toward the NAS. A price reduction or long-term promotion moves it toward Google One.
Network Costs
A basic 1GbE network requires no special switch for most households. Using 2.5GbE or 10GbE may require new client adapters, switches, and cabling.
Residual Value
The calculations credit the NAS with no resale value at year five. A working enclosure may retain value, while a subscription retains none. Because future resale prices are uncertain, we disclose the difference without subtracting a speculative amount from the NAS total.
Frequently Asked Questions
Is Google One Cheaper Than a NAS at 2TB?
Yes, on absolute five-year spending under this model. Google One costs $499.95, while the protected two-drive NAS configuration costs $837.00. The NAS provides 4TB of decimal usable capacity and costs less per usable TB, but that does not erase its higher upfront purchase.
How Much Does 10TB of Google One Cost Over Five Years?
At $49.99 per month, 10TB costs $2,999.40 over 60 months. That assumes the price does not change and excludes promotions, taxes, and the value of other plan benefits.
Does Google Cloud Storage Charge to Download Files?
Yes. Nearline, Coldline, and Archive charge retrieval fees, and transferring data to the internet can add network charges. Standard storage has no retrieval fee, but normal operation and network charges can still apply.
Which Costs Are Commonly Excluded From NAS Comparisons?
Common omissions include the drives, usable capacity lost to RAID, electricity, UPS protection, independent backup, replacement drives, network upgrades, taxes, and maintenance time.
