Calculadora de Velocidade de Transferência Online Grátis
File download/upload time at any internet speed with unit conversions
The Data Transfer Calculator tells you exactly how long a file will take to download or upload at a given connection speed, handling all unit conversions between bits, bytes, kilobits, megabits, and gigabits automatically. It's useful for planning large backups, estimating video upload times, and comparing ISP speed tiers against your actual file sizes.
Frequently Asked Questions
Sobre Esta Calculadora
Internet speed is advertised in megabits per second (Mbps) while file sizes are measured in megabytes (MB) or gigabytes (GB). The difference — bits versus bytes — means a 100 Mbps connection transfers data at roughly 12.5 MB/s, not 100 MB/s. This persistent unit mismatch causes people to underestimate transfer times and overestimate what their connection can do.
The calculator accounts for this conversion precisely, accepting file sizes and speeds in any combination of units — bits, bytes, kilo, mega, giga, or tera — and producing an accurate time in hours, minutes, and seconds. It also estimates realistic throughput by factoring in typical protocol overhead.
Common use cases include: planning nightly database backups to cloud storage, estimating how long a drone video will take to sync, calculating whether a remote server can stream raw data in real-time, and comparing cable versus fiber plans for specific workflow needs.
A Calculadora de Velocidade de Transferência mostra o tempo exato para o envio ou recebimento de dados.
Fórmula
Time = File Size / Transfer Speed
Exemplo Resolvido
Estimating upload time for a 4K video file
Entradas:
- File size: 8 GB (gigabytes)
- Upload speed: 50 Mbps (megabits per second)
Passo a Passo:
- Convert file size to bits: 8 GB × 8 bits/byte × 1,000 MB/GB × 1,000 KB/MB × 1,000 B/KB = 64,000,000,000 bits = 64 Gbits
- Upload speed: 50 Mbps = 50,000,000 bits per second
- Time = 64,000,000,000 ÷ 50,000,000 = 1,280 seconds
- 1,280 seconds ÷ 60 = 21 minutes 20 seconds