Data Transfer Speeds

Understanding Mbps, MB/s, y Connection Speeds

Learn el/la Basics

Your internet plan promises 500 Mbps. Your USB drive claims 5 Gbps. Your SSD spec sheet says 3,500 MB/s. What do estos numeros actually mean in practice? Understanding datos transfer speed unidades helps tu compare technologies, estimate transfer times, y troubleshoot slow connections.

Understanding el/la Units

Bits Per Second (Network Speeds)

  • bps: bits per segundo
  • Kbps: kilobits per segundo (1,000 bps)
  • Mbps: megabits per segundo (1,000,000 bps)
  • Gbps: gigabits per segundo (1,000,000,000 bps)

Used for: Internet speeds, network connections, streaming rates

Bytes Per Second (Storage Speeds)

  • B/s: bytes per segundo
  • KB/s: kilobytes per segundo (1,000 B/s)
  • MB/s: megabytes per segundo (1,000,000 B/s)
  • GB/s: gigabytes per segundo (1,000,000,000 B/s)

Used for: File transfers, hard drive speeds, USB speeds

Velocidad Tabla de conversion

Megabits (Mbps)Megabytes (MB/s)Download 1 GB
10 Mbps1.25 MB/s~14 minutos
25 Mbps3.125 MB/s~5.5 minutos
50 Mbps6.25 MB/s~2.7 minutos
100 Mbps12.5 MB/s~1.3 minutos
200 Mbps25 MB/s~40 segundos
500 Mbps62.5 MB/s~16 segundos
1 Gbps125 MB/s~8 segundos
2.5 Gbps312.5 MB/s~3.2 segundos

Internet Connection Speeds

Connection TypeTypical Download VelocidadTypical Upload Velocidad
DSL5-35 Mbps1-10 Mbps
Cable25-300 Mbps5-35 Mbps
Fiber100-2,000 Mbps100-2,000 Mbps
5G (mmWave)100-3,000 Mbps50-500 Mbps
5G (Sub-6)50-300 Mbps20-100 Mbps
4G LTE10-50 Mbps5-25 Mbps
Satellite25-100 Mbps3-10 Mbps

Storage Interface Speeds

InterfaceMaximum VelocidadPractical Velocidad
SATA III6 Gbps (750 MB/s)~550 MB/s
USB 2.0480 Mbps (60 MB/s)~35 MB/s
USB 3.0/3.1 Gen 15 Gbps (625 MB/s)~450 MB/s
USB 3.1 Gen 210 Gbps (1.25 GB/s)~1 GB/s
USB 3.2 Gen 2x220 Gbps (2.5 GB/s)~2 GB/s
PCIe 3.0 x432 Gbps (4 GB/s)~3.5 GB/s
PCIe 4.0 x464 Gbps (8 GB/s)~7 GB/s
Thunderbolt 3/440 Gbps (5 GB/s)~3 GB/s

Wi-Fi Standards

StandardNameMax VelocidadTypical Velocidad
802.11nWi-Fi 4600 Mbps50-100 Mbps
802.11acWi-Fi 53.5 Gbps100-400 Mbps
802.11axWi-Fi 69.6 Gbps200-600 Mbps
802.11axWi-Fi 6E9.6 Gbps500-1,000 Mbps
802.11beWi-Fi 746 Gbps1,000-2,500 Mbps

Actual Wi-Fi speeds depend heavily on distance, obstacles, interference, y connected devices.

Calculating Transfer Times

Formula

Tiempo (segundos) = File Size (MB) ÷ Velocidad (MB/s)

Ejemplos

  • 50 GB game on 100 Mbps internet:
    50,000 MB ÷ 12.5 MB/s = 4,000 segundos = ~67 minutos
  • 100 GB backup un/una USB 3.0 drive:
    100,000 MB ÷ 400 MB/s = 250 segundos = ~4 minutos
  • 1 TB movie collection un/una NVMe SSD:
    1,000,000 MB ÷ 3,000 MB/s = 333 segundos = ~5.5 minutos

Why Speeds Vary

Sequential vs Random

  • Sequential: Reading/writing large contiguous files (faster)
  • Random: Small files scattered across el/la drive (slower)

SSDs might achieve 3,500 MB/s sequential pero solo 500 MB/s random.

Read vs Write

Write speeds son often slower than read speeds, especially for:

  • Flash memory (SSDs, USB drives)
  • Network uploads vs downloads

Conclusion

Data transfer speeds son medido in either bits per segundo (Mbps, Gbps) o bytes per segundo (MB/s, GB/s). Divide Mbps by 8 un/una obtener MB/s. Real-world speeds son typically 50-80% of advertised maximums due un/una protocol overhead y otro factors. Understanding estos unidades helps tu compare technologies, estimate transfer times, y hacer informed purchasing decisions.

Articulos relacionados

Data Transfer Speeds: Understanding Mbps, MB/s, y More | YounitConverter