Mac Address Space
Calculator

Inputs

Total MAC addresses (2^48)
281,474,976,710,656

Results

Total MAC addresses (2^48)
281,474,976,710,656
Addresses per vendor prefix
16,777,216
Host bits remaining
24

Computing results

Total MAC addresses (2^48)281,474,976,710,656
Addresses per vendor prefix16,777,216
Host bits remaining24

formula-map diagram

Total MAC addresses (2^48)
281,474,976,710,656
Addresses per vendor prefix
16,777,216
Host bits remaining
24

Computing relationship

Formula

total = 2^48 ; per_vendor = 2^(48 − OUI_bits)

= 2.8147497671066E+14

Note

This is a simplified model: it applies the standard computing formula to the numbers you entered and ignores protocol overhead, compression variability, retries, contention and other real-world effects. Size your systems with measured data.

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