EVERYDAY CLARITY

Packet Transmission Time Calculator

Calculate serialization delay from packet length and line rate.

Enter your values

01

Use a dot or comma for decimals.

Your result
Serialization delay
0.00012 s
Serialization delay
120 µs

Result for the values shown.

Calculations run in your browser.

What to enter
InputMeaning and units
Packet length (B)Enter packet length in B; use the same basis as the other measurements.
Link rate (Mbit/s)Enter link rate in Mbit/s; use the same basis as the other measurements.

Understanding your result

Read Serialization delay (s), Serialization delay (µs) in the units and model stated on this page. The formula seconds = bytes * 8 / (rate * 1000000) · microseconds = seconds * 1000000 defines the relationship; measurement accuracy and model applicability are separate from numerical precision.

Common mistakes

  • Mixing input units or changing the physical meaning of a variable without changing the model.

Check your calculation

  • Use the worked example as a known reference case, then change one input at a time and check the direction and units of the response.

Calculation checks, sources and review limits

How long does it take to put this packet on a link?

Calculate serialization delay from packet length and line rate.

Common uses

  • How long does it take to put this packet on a link

How it works

seconds = bytes * 8 / (rate * 1000000); microseconds = seconds * 1000000

Worked example

Enter Packet length: 1500 B; Link rate: 100 Mbit/s. Results: Serialization delay: 0.00012 s; Serialization delay: 120 µs.