India (ranked #4 globally) holds a stronger overall military position than Iran (#30) on the ARMS Index. India fields 3,068,000 active troops — 4.7:1 Iran's 650,000, backed by 1,155,000 reserves and 1,616,050 paramilitary. India's $78B defense budget is 8.2:1 that of Iran ($9.5B).
ARMS (Aggregate Rating of Military Strength) Index face-offFull ranking →
India holds a decisive overall advantage over Iran, with roughly eight times the defence budget, a modern multirole air force, a blue-water navy built around two carriers, and around 190 nuclear warheads against Iran's non-nuclear arsenal. Iran's strengths — mass mobilisation, dense air defences and a large ballistic and drone missile force — are defensive and regional, and the two states are separated by distance and third countries that make a direct conventional clash improbable.
Domain by domain
Air powerEdge: India
🇮🇳 India588 combat aircraft led by 259 Su-30MKI, plus Rafale, MiG-29, Mirage 2000 and indigenous Tejas; AWACS, tanker and heavy-lift support enable sustained offensive and long-range operations.
🇮🇷 Iran295 combat aircraft dominated by pre-1979 F-4, F-5 and F-14 airframes with limited spares; a small Su-35 and MiG-29 element and scarce tanker or AEW support cap reach.
Naval powerEdge: India
🇮🇳 India351 vessels including carriers INS Vikrant and Vikramaditya, Visakhapatnam- and Kolkata-class destroyers, Kalvari-class SSKs and Arihant-class SSBNs; genuine blue-water and sea-denial reach across the Indian Ocean.
🇮🇷 Iran112 mostly light units, two Kilo-class submarines and midget boats; IRGC Navy doctrine rests on swarming fast attack craft, mines and anti-ship missiles in the Gulf and Strait of Hormuz.
Missiles & air defenceEven
🇮🇳 IndiaAgni and Prithvi families under Strategic Forces Command, BrahMos cruise missiles, S-400 and indigenous Akash and layered ballistic-missile defence over key assets.
🇮🇷 IranThe region's largest ballistic missile and one-way attack drone inventory, plus Bavar-373 and S-300 long-range SAMs; accuracy improving, but coverage is uneven against modern strike packages.
Nuclear deterrentEdge: India
🇮🇳 IndiaRoughly 190 warheads, Credible Minimum Deterrence with No First Use, and a maturing triad of Agni missiles, aircraft delivery and Arihant-class SSBNs.
🇮🇷 IranNo warheads; an advanced enrichment and missile infrastructure gives latent capability, but no demonstrated weapon or delivery-certified system exists.
Defense industry & budgetEdge: India
🇮🇳 India$78.2B at 2.0% of GDP on a $3,910B economy; broad domestic production of tanks, ships, missiles and aircraft, supplemented by Russian, French and US imports.
🇮🇷 Iran$9.5B on a $475B economy under prolonged sanctions; strong low-cost drone, missile and small-craft output, but no access to modern engines, avionics or major platforms.
Wildcards
Geographic separation Pakistan, Afghanistan and the Arabian Sea lie between the two states. Neither has a land border with the other, so any confrontation would be naval, air or missile-based rather than territorial.
Proxy and maritime leverage Iran's regional partner networks and its position on the Strait of Hormuz give it disruptive reach over energy flows on which India, a major importer of Gulf crude, remains dependent.
Overlapping partnerships Both belong to the SCO and both maintain Russian defence ties; India also sits in the Quad and works with Iran on Chabahar port access, creating incentives against direct conflict.
Outlook
Scenario
Short war
Protracted war
Conventional
🇮🇳 Indian air and naval superiority decisive
🇮🇳 Budget and industrial depth compound India's lead
Hybrid/Asymmetric
🇮🇷 Drones, mines and proxies favour Iran
Even Iranian disruption meets Indian depth and reach