India holds a 82–18 advantage over Iran on the Relative Advantage Index, a decisive margin.
The margin is driven by military spending (93% of the combined total, $92.1bn) and economic size (GDP) (89% of the combined total, $3.9tn).
1 factor — nuclear warheads — could not be scored because the figure is unpublished for at least one side.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 | India | Share | Iran | Weight |
|---|---|---|---|---|
Military spending SIPRI Milex | $92.1bn | 93%7% | $7.4bn | 33% |
Economic size (GDP) World Bank WDI | $3.9tn | 89%11% | $475bn | 27% |
Active personnel COW NMC | 1.5m | 71%29% | 610.0k | 20% |
Logistics & power projection OurAirports | 146 | 66%34% | 76 | 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.