REAL DATA. REAL SPEEDS. REAL ANSWERS.

How Long
Will It Take?

Calculate file transfer, download or upload times in seconds.

Enter your data size and connection speed to get an instant estimate. Compare different speeds and plan your transfers with confidence.

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Big files.
Clear answers.

Data size

Connection speed

Decimal: MB / GB / TBBinary: MiB / GiB / TiB

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Estimated transfer time22h 13m1 TB at 100 Mbps

Data size1,000 GBSpeed100 MbpsTotal seconds80,000 s

Compare common connection speeds

See how long it would take to transfer 1 TB at different speeds.

↓Download Time CalculatorHow long will it take to download a file?›↑Upload Time CalculatorEstimate upload times for any file size.›▱Storage CalculatorConvert between GB, TB, and more.›◴Bandwidth CalculatorFind the bandwidth you need.›⇄Unit ConverterMbps ↔ MB/s, GB ↔ GiB, and more.›

🌐 Plan your data transfers with confidence

Whether you're backing up data, uploading videos, or moving large files between servers, DataTransferLab gives you the tools to estimate transfer times and compare connection speeds.

✓ Accurate calculations ✓ Simple and free to use
✓ Supports common units ✓ Works on any device

💡 Did you know?

1 byte = 8 bits, so network speeds (Mbps) are different from file speeds (MB/s). A 100 Mbps connection has a theoretical maximum of 12.5 MB/s.

Popular transfer guides

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