# Conversor de taxa de transferência (Mbps para MB/s) > Converta Mbps para MB/s, Gbps para MB/s e kbps para kB/s. As velocidades de rede são dadas em bits por segundo; arquivos e medidores de download, em bytes. Versão interativa: https://www.calcopenly.com/pt/conversion/data-transfer-rate-converter Tema: Conversores de unidades Network speeds are quoted in bits per second and file sizes in bytes, and a byte is 8 bits, so megabits per second divide by 8 to give megabytes per second. Each rate unit is a fixed number of bits per second, with decimal prefixes (1 Mbit/s = 10⁶ bit/s) kept apart from binary ones (1 MiB/s = 2²⁰ bytes per second). The default converts a 100 Mbit/s broadband plan to 12.5 MB/s, the most a download can show in megabytes per second, or 11.92 MiB/s in a program that counts in binary units. A 1 Gbit/s connection tops out at 125 MB/s. Real transfers run below the line rate because every packet carries headers: over Ethernet with TCP/IPv4, at most 1,460 of every 1,538 bytes on the wire are data, 94.9%. The download time calculator applies that overhead to a file size. ## Dados - **Valor**: Um número na unidade de origem, ou acompanhado de sua própria unidade - **De** (opções: bit per second (bit/s), kilobit per second (kbit/s), megabit per second (Mbit/s), gigabit per second (Gbit/s), terabit per second (Tbit/s), byte per second (B/s), kilobyte per second (kB/s), megabyte per second (MB/s), gigabyte per second (GB/s), kibibyte per second (KiB/s), mebibyte per second (MiB/s), gibibyte per second (GiB/s)) - **Para** (opções: bit per second (bit/s), kilobit per second (kbit/s), megabit per second (Mbit/s), gigabit per second (Gbit/s), terabit per second (Tbit/s), byte per second (B/s), kilobyte per second (kB/s), megabyte per second (MB/s), gigabyte per second (GB/s), kibibyte per second (KiB/s), mebibyte per second (MiB/s), gibibyte per second (GiB/s)) ## Resultados - Valor convertido — resultado principal - Conversão - Fator de conversão - Exatidão ## Fórmula $$ \begin{gathered} x_{\text{to}} = x_{\text{from}} \times \dfrac{f_{\text{from}}}{f_{\text{to}}} \\ f = \text{one unit expressed in } \text{bit/s} \end{gathered} $$ ## Exemplos resolvidos ### 100 Mbit/s in MB/s - Valor: 100 Mbit/s - De: megabit per second (Mbit/s) - Para: megabyte per second (MB/s) - **Valor convertido: 12.5 MB/s** - Fonte de verificação: 100 × 10⁶ bit/s ÷ 8 bit/B ÷ 10⁶ = 12.5 ### 1 Gbit/s in MB/s - Valor: 1 Gbit/s - De: gigabit per second (Gbit/s) - Para: megabyte per second (MB/s) - **Valor convertido: 125 MB/s** - Fonte de verificação: 10⁹ / 8 / 10⁶ = 125 ### 1 MiB/s in Mbit/s - Valor: 1 MiB/s - De: mebibyte per second (MiB/s) - Para: megabit per second (Mbit/s) - **Valor convertido: 8.388608 Mbit/s** - Fonte de verificação: 2²⁰ × 8 / 10⁶ = 8.388608 ### 1 bit/s in kB/s (tiny value) - Valor: 1 bit/s - De: bit per second (bit/s) - Para: kilobyte per second (kB/s) - **Valor convertido: 0.000125 kB/s** - Fonte de verificação: 1 / 8 / 1000 = 0.000125 ## Perguntas ### How many MB/s is 100 Mbps? 12.5 MB/s. Divide megabits per second by 8, because a byte is 8 bits: 100 ÷ 8 = 12.5. Programs that count in binary units show 11.92 MiB/s for the same speed, and protocol overhead takes about another 5%, so expect around 11.9 MB/s on a wired 100 Mbit/s link. ### What is the difference between Mbps and MBps? Mbps (Mbit/s) is megabits per second; MBps (MB/s) is megabytes per second, 8 times larger. Internet plans and Wi-Fi speeds are sold in Mbps, while browsers and download managers usually show MB/s, so a 50 Mbps plan appears as 6.25 MB/s. The case of the b is the only visible difference. ### How fast is 1 Gbps in MB/s? 125 MB/s: 1,000,000,000 bits ÷ 8 = 125,000,000 bytes per second, which is 119.21 MiB/s in binary units. At that rate a 50 GB download takes 400 seconds, 6 min 40 s, before protocol overhead is added. ### Why is my download slower than my internet speed? Part of the gap is units and part is overhead. A plan quoted at 100 Mbit/s is 12.5 MB/s at most, and TCP/IP and Ethernet headers use about 5% of that, leaving about 11.9 MB/s. Wi-Fi signal, the far server and other devices on the connection reduce it further, which this converter does not model. ### How many Mbps is 1 MiB/s? 8.388608 Mbit/s. One MiB/s is 1,048,576 bytes per second, and 1,048,576 × 8 = 8,388,608 bits per second. A tool that reports MiB/s therefore shows a number 4.6% lower than the same speed in MB/s. ### Qual é a precisão de “Conversor de taxa de transferência (Mbps para MB/s)”? A precisão depende dos dados inseridos e das hipóteses do método. O cálculo decimal usa 50 algarismos significativos, mas estimativas, métodos numéricos e dados de origem podem ter menor precisão; o arredondamento exibido não elimina essas limitações. Exemplos resolvidos verificados com fontes independentes: 4. Por exemplo, “100 Mbit/s in MB/s” é verificado com 100 × 10⁶ bit/s ÷ 8 bit/B ÷ 10⁶ = 12.5. ### De onde vem o método? NIST SP 811 (2008), Guide for the Use of the SI, Appendix B — conversion factors; NIST Handbook 44, Appendix C — General tables of units of measurement; NIST — Prefixes for binary multiples (IEC 80000-13). ## Fontes - [NIST SP 811 (2008), Guide for the Use of the SI, Appendix B — conversion factors](https://www.nist.gov/pml/special-publication-811) - [NIST Handbook 44, Appendix C — General tables of units of measurement](https://www.nist.gov/pml/owm/nist-handbook-44-current-edition) - [NIST — Prefixes for binary multiples (IEC 80000-13)](https://physics.nist.gov/cuu/Units/binary.html)