Bandwidth calculator

Find the average transfer speed from a file and its duration, or estimate how much data you can transfer at a given speed.

Calculate bandwidth

How fast was the data transferred?

Transfer duration

Enter as 2h15m23s, 2:15:23, or 15:23 (m:ss)

Output size

Uses decimal units (1 MB = 1,000,000 bytes)

Average bandwidth

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Result will appear here

Estimate output size

How much data fits in your time?

Transfer duration

Enter as 2h15m23s, 2:15:23, or 15:23 (m:ss)

Bandwidth

Mbps

Mbps means megabits per second

Estimated output size

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Result will appear here

Units: Speeds are shown in Mbps (megabits per second). File sizes use decimal units, so 8 bits = 1 byte and 1 GB = 1,000 MB. Calculations show average throughput and do not account for protocol overhead.