🌐 Throughput Unit Converter – All Networking Speed Units in One Place
Network engineers, system administrators, and students regularly encounter throughput values expressed in incompatible units. A router spec sheet might list capacity in Gbps, a storage array benchmark reports MB/s, and a cloud provider SLA is written in Gbps using a different base. This converter instantly translates any throughput value into all 19 common units simultaneously, eliminating manual calculation and unit-confusion errors.
📐 SI (Decimal) vs IEC (Binary) Units
The most important distinction in throughput measurement is whether a unit uses powers of 10 (SI/decimal) or powers of 2 (IEC/binary):
| Standard | Example | Factor | Used By |
|---|---|---|---|
| SI | 1 Gbps | 1,000,000,000 bps | ISPs, routers, switches, SLAs |
| IEC | 1 Gibps | 1,073,741,824 bps | Some storage, OS file transfer dialogs |
At the gigabit level, SI and IEC values differ by about 7.4%. At the terabit level, the gap grows to nearly 10%. This discrepancy often causes confusion when comparing network bandwidth to storage I/O ratings, where the same numeric value represents a meaningfully different actual speed depending on which standard was used.
🔢 How Conversions Work
All conversions use bits per second (bps) as the canonical intermediate unit:
- Input → bps: multiply the input value by its unit factor
- bps → output: divide the bps value by each target unit's factor
The bits-to-bytes relationship (1 byte = 8 bits) is built into every byte-based unit factor. For example, 1 MB/s = 8 × 10⁶ bps, so converting from MB/s to Mbps always multiplies by 8.
📊 Supported Units
| Symbol | Full Name | Factor (bps) | Type |
|---|---|---|---|
bps | Bits per second | 1 | SI-bits |
Kbps | Kilobits per second | 10³ | SI-bits |
Mbps | Megabits per second | 10⁶ | SI-bits |
Gbps | Gigabits per second | 10⁹ | SI-bits |
Tbps | Terabits per second | 10¹² | SI-bits |
Pbps | Petabits per second | 10¹⁵ | SI-bits |
MB/s | Megabytes per second | 8 × 10⁶ | SI-bytes |
GB/s | Gigabytes per second | 8 × 10⁹ | SI-bytes |
Mibps | Mebibits per second | 2²⁰ = 1,048,576 | IEC-bits |
Gibps | Gibibits per second | 2³⁰ ≈ 1.07 × 10⁹ | IEC-bits |
MiB/s | Mebibytes per second | 8 × 2²⁰ | IEC-bytes |
GiB/s | Gibibytes per second | 8 × 2³⁰ | IEC-bytes |
🌍 Real-World Context
Raw throughput numbers become meaningful when translated into practical impact. The Real-World Context tab shows:
- File transfer time — how long to transfer 1 MB, 1 GB, or 10 GB at the given speed:
time = file_size_bits ÷ bps - Simultaneous 1080p HD streams — assumes 5 Mbps per stream (typical Netflix / YouTube HD bitrate)
- Simultaneous 4K streams — assumes 25 Mbps per stream (Netflix 4K recommendation)
- VoIP calls (G.711) — assumes 64 Kbps per call, the ITU-T G.711 standard PCM codec
⚡ Common Use Cases
| Scenario | Convert From | Convert To |
|---|---|---|
| ISP plan → download speed | 100 Mbps | 12.5 MB/s |
| NIC specification comparison | 10 Gbps | 1.25 GB/s |
| Storage array I/O planning | 2 GiB/s | ~16.384 Gbps |
| Cloud interconnect SLA validation | 1 Gbps | ~0.931 Gibps |
💡 Tips for Accuracy
- Always verify the base— when a vendor spec says "1 Gbps" check whether they mean
10⁹(SI) or2³⁰(IEC). Most networking equipment uses SI. - Bits vs. bytes — network speeds are almost always in bits per second. File sizes and transfer rates shown in operating systems are in bytes. Always multiply by 8 when crossing the bit/byte boundary.
- Theoretical vs. actual — conversions here show theoretical maximum throughput. Real-world performance is reduced by protocol overhead (TCP/IP headers, Ethernet framing), link utilization, latency, and retransmissions — typically 5–30% less.
- Scientific notation — the tool accepts inputs like
1e9or2.5e12for very large values such as backbone WAN links.
📡 Common Reference Speeds
| Technology | Speed | MB/s Equivalent |
|---|---|---|
| Fast Ethernet (100BASE-TX) | 100 Mbps | 12.5 MB/s |
| Gigabit Ethernet | 1 Gbps | 125 MB/s |
| 10 Gigabit Ethernet | 10 Gbps | 1,250 MB/s |
| Wi-Fi 6 (802.11ax, max) | 9.6 Gbps | 1,200 MB/s |
| 5G NR (theoretical peak) | 20 Gbps | 2,500 MB/s |
| USB 3.2 Gen 2×2 | 20 Gbps | 2,500 MB/s |
| PCIe 4.0 × 16 | 256 Gbps | 32,000 MB/s |
Understanding throughput units is fundamental for network design, capacity planning, SLA negotiation, and troubleshooting performance issues. This converter ensures you always speak the right unit for the right audience — whether talking to an ISP, a storage vendor, or a cloud provider.