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MTU / MSS

Calculate MTU / MSS instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.

MTU / MSS

MTU
MSS
1,460
MSS = MTU − 40 (IP+TCP)Calculate MTU / MSS instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.

More about: MTU / MSS

What it calculates

The “MTU / MSS” calculator computes MSS from 1 parameter: mtu.

Standard IT calculations for developers and sysadmins.

Example calculation

With parameters MTU = 1,500 the result is 1,460 (MSS = MTU − 40 (IP+TCP)).

How to use

  1. Enter the parameter values — every field above is adjustable with a slider.
  2. The result and related metrics are calculated automatically as you type.
  3. Use the additional metrics shown (if any) where needed.
  4. Copy the result or bookmark the page.

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