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Frames Per Second (Network) Calculator

Work out frames per second (network) instantly with clear inputs, formula shown and shareable results.

About Frames Per Second (Network) Calculator

Frame rate at line rate is link bits divided by bits per frame including the 20-byte preamble and inter-frame gap. Ten gigabit Ethernet with minimum 64-byte frames reaches about 14.88 million frames per second, which is the standard benchmark figure and the number that determines whether a forwarding engine can handle worst-case traffic.

Formula

Frame rate

bits per frame = (frame bytes + 20) x 8; frames per second = link bits / bits per frame

Worked example

With the default values below, Frames Per Second (Network) Calculator returns Frames per second at line rate of 14,880,952. Change any input above and every figure here is recalculated in your browser.

Inputs used

Link speedminimum 0.001 Gbps
10 Gbps
Frame sizeaccepts 64–9,216 bytes
64 bytes
Preamble and inter-frame gapaccepts 0–40 bytes
20 bytes

Results

Frames per second at line rate
14,880,952 fps
Millions of frames per second
14.881 Mpps
Bits consumed per frame
672 bits
Frame goodput excluding the gap
7.619 Gbps

Step by step

  1. 1Values used
  2. 2Frame rate
  3. 3Frames per second at line rate= 14,880,952 fps
  4. 4Millions of frames per second= 14.881 Mpps
  5. 5Bits consumed per frame= 672 bits
  6. 6Frame goodput excluding the gap= 7.619 Gbps

Assumptions and limits

  • The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 3 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Why is 14.88 Mpps the famous number?

It is the maximum frame rate of 10 Gigabit Ethernet with 64-byte frames, and it defines the worst-case packet processing requirement for any 10G device.

Do jumbo frames reduce the packet rate?

Dramatically. A 9000-byte frame at 10 Gbps is only about 138,000 frames per second, which is why jumbo frames cut CPU load so much for bulk transfer.

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