Storage Throughput Converter
This Storage Throughput Converter translates any throughput or IOPS value into every other unit at once — useful when backup tools, network specs, and storage vendor docs all report performance in different units. Select a Source Unit, enter a value, and optionally set a Block Size (required when converting from or to IOPS), and you'll see equivalent throughput in IOPS, B/s, KB/s, MB/s, GB/s, Mbit/s, Gbit/s, GB/hour, TB/hour, TB/day, TB/week, and TB/month.
IOPS, Block Size and Speed Unit: Enter Throughput to Convert
Converted MB/s, GB/s, IOPS and MiB/s Equivalent Values
| Unit | Value | Category |
|---|---|---|
| IOPS (at 4 KB) | — | IOPS |
| B/s | — | Bytes/sec |
| KB/s | — | Bytes/sec |
| MB/s | — | Bytes/sec |
| GB/s | — | Bytes/sec |
| TB/s | — | Bytes/sec |
| Mbit/s | — | Bits/sec |
| Gbit/s | — | Bits/sec |
| MB/hour | — | Per Hour |
| GB/hour | — | Per Hour |
| TB/hour | — | Per Hour |
| GB/day | — | Per Day |
| TB/day | — | Per Day |
| TB/week | — | Per Week |
| TB/month (30 days) | — | Per Month |
IOPS to MB/s at Common Block Sizes
| IOPS | 4 KB block (MB/s) | 8 KB block (MB/s) | 64 KB block (MB/s) | 256 KB block (MB/s) | 1 MB block (MB/s) |
|---|---|---|---|---|---|
| 1,000 | 3.91 | 7.81 | 62.5 | 250 | 976.6 |
| 10,000 | 39.1 | 78.1 | 625 | 2,500 | 9,766 |
| 100,000 | 390.6 | 781.3 | 6,250 | 25,000 | 97,656 |
| 500,000 | 1,953 | 3,906 | 31,250 | 125,000 | 488,281 |
| 1,000,000 | 3,906 | 7,813 | 62,500 | 250,000 | 976,563 |
Formula: MB/s = IOPS × Block Size (KB) ÷ 1024. These are decimal MB (1 MB = 1,000,000 bytes).
MB/s, GB/s, MiB/s, GiB/s and IOPS Conversion Reference
| From / To | MB/s | Mbit/s | GB/hour | TB/day |
|---|---|---|---|---|
| 1 MB/s = | 1 | 8 | 3.6 | 0.0864 |
| 1 Mbit/s = | 0.125 | 1 | 0.45 | 0.0108 |
| 1 GB/hour = | 0.2778 | 2.222 | 1 | 0.024 |
| 1 TB/day = | 11.574 | 92.593 | 41.667 | 1 |
IOPS, MB/s and MiB/s: SI vs IEC Storage Speed Units Explained
Storage throughput conversion is a daily task for storage engineers who work across backup systems, data migration tools, network equipment, and storage arrays — each of which reports performance in different units. Backup software reports throughput in GB/hour or TB/day, NAS and SAN devices report in MB/s, networking teams measure in Mbit/s or Gbit/s, and storage benchmarking tools report IOPS at a specific block size. Converting between these units accurately is critical for matching backup window requirements to available infrastructure throughput, sizing network links for data replication, and comparing storage array performance specifications across vendors. Check out our calculate storage IOPS from throughput.
IOPS (Input/Output Operations Per Second) is a throughput unit that is inherently block-size dependent. A storage device delivering 100,000 IOPS at a 4 KB block size moves 400 MB/s of data — 0.4 GB/s, 1.44 TB/hour, or 34.56 TB/day. The same 100,000 IOPS at a 64 KB block size moves 6.4 GB/s — 16 times more throughput — because each operation transfers 16× more data. Always specify block size when converting IOPS to throughput units such as MB/s or GB/day, as the conversion is meaningless without it. You might also need: plan backup throughput requirements.
Time-based throughput units — GB/hour, TB/day, TB/week — are most useful in backup capacity planning and data migration scheduling. A backup job that must transfer 10 TB within an 8-hour backup window requires at least 1.25 TB/hour = 347 MB/s = 2.78 Gbit/s of sustained throughput. Knowing this figure upfront lets you verify whether your backup network, storage fabric, or replication link can support the required data transfer rate before the backup window is missed. The storage throughput converter on this page handles all these conversions instantly, including IOPS at any block size you specify. You might also need: estimate SSD drive writes per day and lifespan.
Sequential vs Random I/O, Queue Depth and Throughput Ceiling
MB/s vs Mbit/s: 1 MB/s = 8 Mbit/s. Network speeds are quoted in bits (Mbit/s, Gbit/s); storage speeds in bytes (MB/s, GB/s). Always multiply MB/s by 8 to get Mbit/s equivalent.
IOPS Block Size Dependency: IOPS × block size (in bytes) = bytes per second. A device delivering 50,000 IOPS at 4 KB moves 195 MB/s. The same device tested at 512 KB moves 24.4 GB/s — 125× more throughput at the same IOPS.
Backup Throughput Planning: To meet a backup window, divide dataset size by available hours. 10 TB in 8 hours = 1.25 TB/hr = 347 MB/s = 2.78 Gbit/s. Add 20–30% overhead for protocol efficiency loss.
GB vs GiB: This converter uses decimal units (1 GB = 10^9 bytes, 1 TB = 10^12 bytes). If your storage reports in GiB (1 GiB = 2^30 bytes), multiply by 1.074 to convert to GB.