Enter the data link’s capacity (bandwidth) in bits per second and the round-trip delay time in seconds to calculate the bandwidth-delay.

Bandwidth Delay Product Formula

The following formula is used to calculate the bandwidth-delay product.

BDP = B * D
  • Where BDP is the bandwidth-delay product
  • B is the bandwidth or data link capacity (bits per second)
  • D is the round-trip delay (seconds)

To calculate a bandwidth delay product, multiply the data link capacity by the round-trip delay.

Bandwidth Delay Product Definition

Bandwidth delay product is a term used in data communication to describe the product of the bandwidth (link capacity) and the round-trip delay time. This is a measure of the maximum amount of data on a network circuit at any given time.

Bandwidth Delay Product Example

How to calculate a bandwidth delay product?

  1. Next, determine the round-trip delay time.

    It’s important that this is round-trip and not single distance delay time.

  2. First, determine the data link capacity.

    Measure the total bandwidth in bits per second.

  3. Finally, calculate the bandwidth delay product.

    Calculate the BDP using the equation above.


What is a high bandwidth-delay product?

Large Bandwidth-delay products in networks are often considered ones greater than 12,500 bytes.

bandwidth delay product calculator
bandwidth delay product formula