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Network Speed Converter

Convert Speeds & Estimate Transfer Times

Speed Converter

Type in any field to convert all units instantly.

Bits per second
bits per second
1 Kbps = 1,000 bps
1 Mbps = 1,000 Kbps
1 Gbps = 1,000 Mbps
Bytes per second
1 KB/s = 8,000 bps
1 MB/s = 8 Mbps
1 GB/s = 8 Gbps

Type in any field to convert all units instantly.

Decimal (SI)
1 byte = 8 bits
1 KB = 1,000 bytes
1 MB = 1,000 KB
1 GB = 1,000 MB
1 TB = 1,000 GB
1 PB = 1,000 TB
Binary (IEC)
1 KiB = 1,024 bytes
1 MiB = 1,024 KiB
1 GiB = 1,024 MiB
1 TiB = 1,024 GiB

Quick Reference

💡 Bits vs Bytes

Network speeds are measured in bits (lowercase b) — e.g. Mbps. Storage sizes use bytes (uppercase B) — e.g. MB. There are 8 bits in a byte, so 100 Mbps = 12.5 MB/s actual throughput.

📡 Common Speeds

ADSL: 8–24 Mbps. FTTC: 40–80 Mbps. FTTP/Fiber: 100 Mbps–10 Gbps. 4G LTE: ~20–100 Mbps. 5G: up to 1 Gbps. 1GbE LAN: 1 Gbps. 10GbE: 10 Gbps.

🔢 SI vs Binary

Manufacturers use decimal (1 KB = 1,000 bytes). Operating systems historically used binary (1 KiB = 1,024 bytes). A "500 GB" drive shows as ~465 GiB in Windows.

⚠️ Real-World Speeds

Actual transfer speeds are typically 60–90% of the advertised link rate due to protocol overhead, network congestion, and hardware limitations. Always test with real-world tools like iPerf.