Air Forces comparison: 
Japan vs 
United States
United States's air force fields 13,004 active aircraft — 9.2:1 Japan's 1,410.
AIRS (Air Inventory Rating of Strength) Index face-off Full ranking →
JapanWorld #5
29.2
AIRS Index / 100
United States leads on 7 of 7 categories
United StatesWorld #1
100.0
Japan
United States
Bars: weighted contribution to the AIRS Index (airframes × category weight; combat and bombers by generation tier, helicopters by era; the enabler, armament and availability multipliers apply on top) · figures: active airframes at each side's latest inventory year · Methodology
Key figures as of 2026
| Japan | United States | Ratio | |
|---|---|---|---|
| Official name | Japan Air Self-Defense Force | United States Air Force | |
| Active aircraft | 1,410 | 13,004 | 🇺🇸 9.2× |
| Aircraft on order | 343 | 3,418 | 🇺🇸 10.0× |
| Combat aircraft | 341 | 2,956 | 🇺🇸 8.7× |
| Combat share of fleet | 24.2 % | 22.7 % | 🇯🇵 1.1× |
| Aircraft types in service | 34 | 95 | 🇺🇸 2.8× |
| Main supplier | United States · 67 % | United States · 95 % |
Show full breakdown · 6 more rowsHide the 6 extra rows
| Bombers | 0 | 147 | 🇺🇸 |
| Helicopters | 533 | 5,442 | 🇺🇸 10× |
| Transport aircraft | 110 | 1,369 | 🇺🇸 12× |
| Special-mission aircraft | 127 | 1,284 | 🇺🇸 10× |
| Trainers | 296 | 1,594 | 🇺🇸 5.4× |
| UAVs | 3 | 212 | 🇺🇸 71× |
Backbone aircraft most numerous in service
Fleet evolution · Japan
Fleet evolution · United States
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Frequently Asked Questions
Which country has more military aircraft, Japan or United States?
United States has more military aircraft with 13,004 active aircraft compared to Japan's 1,410, a difference of 11,594 aircraft.
Which air force has more combat aircraft, Japan or United States?
United States has more combat aircraft with 2,956 fighters and attack aircraft compared to Japan's 341.
Which country has more military helicopters, Japan or United States?
United States operates more military helicopters with 5,442 compared to Japan's 533.
Which air force has more transport aircraft, Japan or United States?
United States has more transport aircraft with 1,369 compared to Japan's 110.
How do the Japan and United States air forces compare in size?
United States's air force is 12.4 times larger than Japan's in terms of total active aircraft (1,369 vs 110).
Which country has more aircraft on order, Japan or United States?
United States has 3,418 aircraft on order compared to Japan's 343.