WeaponSpecs

Lockheed Martin AGM-158B JASSM-ER vs Raytheon (RTX) Tomahawk Block V

Full specs: Lockheed Martin AGM-158B JASSM-ER Raytheon (RTX) Tomahawk Block V

Lockheed Martin AGM-158B JASSM-ER and Raytheon (RTX) Tomahawk Block V are both missile, compared here on public specifications. The Raytheon (RTX) Tomahawk Block V leads on range (1,600 vs 925 km).

Compare systems side by side

Search above to add up to five systems. You’ll get a per-spec winner, relative bars, a normalized spec profile and an honest verdict, every number from public sources.

Building a fleet? Try the Force Builder →

Full data

Full spec sheet

Lockheed Martin AGM-158B JASSM-ER Wins 3/4
Raytheon (RTX) Tomahawk Block V Wins 1/4
Performance
Max speed (Mach) (Mach) 0.8 Mach 0.74 Mach
Range (km) 925 km 1,600 km
Firepower
Warhead (kg) 450 kg 450 kg
Physical
Length (m) 4.27 m 6.25 m
Combat weight (kg) 1,043 kg 1,450 kg
Program
Unit cost (USD) $1,400,000 $2,000,000
Units built N/A 4,500
Operator countries 6 3

Frequently asked questions

Which has the longer range? +

The Raytheon (RTX) Tomahawk Block V has the longest range at 1,600 km.

Which is cheaper? +

The Lockheed Martin AGM-158B JASSM-ER has the lower public unit-cost figure at 1,400,000 USD. Treat this as directional, defense pricing varies by contract and configuration.

Which has the higher max speed (mach)? +

The Lockheed Martin AGM-158B JASSM-ER has the higher max speed (mach) at 0.8 Mach.

Which has the higher warhead? +

The Lockheed Martin AGM-158B JASSM-ER has the higher warhead at 450 kg.

Which has the higher operator countries? +

The Lockheed Martin AGM-158B JASSM-ER has the higher operator countries at 6.

Is the Lockheed Martin AGM-158B JASSM-ER better than the Raytheon (RTX) Tomahawk Block V? +

On the public specs we track, the Lockheed Martin AGM-158B JASSM-ER leads on 3 of 5 headline metrics, see the full spec sheet for the metric-by-metric breakdown.

Where does this comparison data come from? +

Every figure in the table is sourced from public manufacturer pages, defense-ministry releases and reference publications, and is verifiable on each system's spec page. WeaponSpecs does not accept vendor placement.

Keep exploring

More head-to-heads