Backup Window Bandwidth

Reverse a data volume and deadline into required link speed.

Your numbers

Required nominal bandwidth

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Planning estimate using your entered parameters. No external service, device, live tariff or network is contacted.

Formula

Use v = 8000Gc/(3600hη). G is source GB, c is the compressed-size fraction, h is available hours, η is efficiency, and v is required Mbps.

Reverse a data volume and deadline into required link speed.

Worked example

Changed source data (GB): 100
Transferred size after compression (%): 50
Available window (hours): 2
Transfer efficiency (%): 80

Required nominal bandwidth: 69.4444444444 Mbps

Scope and limitations

Planning estimate using your entered parameters. No external service, device, live tariff or network is contacted.

Inputs are checked for missing values and allowed ranges. A result outside the finite numeric range is not displayed. Rounding affects display, while the calculation uses the model’s numeric precision.

Check your units and assumptions before relying on a result. Changing a label does not convert a currency or physical unit.

Formula version: d38277a0095b · Example checked: 2026-10-30

Methodology