Iran holds a 76–24 advantage over Oman on the Relative Advantage Index, a decisive margin.
The margin is driven by economic size (GDP) (82% of the combined total, $475bn) and active personnel (93% of the combined total, 610.0k).
1 factor — nuclear warheads — could not be scored because the figure is unpublished for at least one side. Those factors are excluded and the remaining weights renormalised, never substituted.
| Factor | Iran | Share | Oman | Weight |
|---|---|---|---|---|
Military spending SIPRI Milex | $7.4bn | 55%45% | $6.0bn | 33% |
Economic size (GDP) World Bank WDI | $475bn | 82%18% | $107bn | 27% |
Active personnel COW NMC | 610.0k | 93%7% | 43.0k | 20% |
Logistics & power projection OurAirports | 76 | 85%15% | 13 | 20% |
Shares are each side's portion of the combined total for that factor. Weights are renormalised across the factors both sides publish — see the methodology. Data read 2026-08-04.
Every combination inside the top 30 of the Composite Power Index.
Bordering states — the comparisons people actually search for.