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Model · Missiles

Kh-555 — an upgraded Kh-55

Kh-555: a strategic cruise missile, a deep upgrade of the Kh-55, with a cluster or high-explosive fragmentation incendiary warhead. What is known and how it shows up.

Speed
Mach 0.6–​0.7
Warhead
410 kg
Cost
~$1–​4M

According to open sources; claimed and real figures may differ, and modifications may have others.

What it is

A deep upgrade of the Soviet Kh-55 strategic missile, which was designed to carry a nuclear warhead. The Kh-555 received a new guidance system and a conventional warhead. Like the Kh-101, it is launched by strategic bombers.

What it means for you

For someone on the ground, the Kh-555 behaves like any cruise missile: it flies low and moves from district to district.

Specifications

Warhead
410 kg, cluster or high-explosive fragmentation incendiary[1]
Speed
subsonic, Mach 0.6–0.7[2]
Cost
$4M according to Forbes; Defense Express puts it on a par with the Kalibr, up to $1M[3][4]

What to do

  1. 1When you hear the “Air raid alert!” signal, go to the nearest shelter at once. Find out in advance where it is near your home and work.
  2. 2If you cannot reach a shelter, move to a room without windows and follow the “two walls” rule.
  3. 3Agree with your family on what to do and where to meet if the phone network or the power goes down.

A marker on our map may appear late or not at all. Go by the siren, not by the map.

State Emergency Service of Ukraine. What to do when the “Air raid alert!” signal sounds (in Ukrainian)checked 2 Oct 2026

How it looks on our map

Movement

A dot, then a course

Marker lives

3–6 min

  • While only the district is known, the target is shown as a dot; a silhouette with a course appears once it is seen moving.
  • If there are no new reports about the target, the marker closes after 3–6 min.

Sources

  1. 1

    Militarnyi

    Russian cruise missiles: manufacturers, range of models and capabilitieschecked 2 Oct 2026
  2. 2

    Defense Express

    Ukraine under Russian missile fire: how to ensure protection (analysis)checked 2 Oct 2026
  3. 3

    Forbes Ukraine

    Russia spent about $620 million on the 2 January strike on Ukraine. Forbes estimatechecked 2 Oct 2026
  4. 4

    Defense Express

    How much Russian cruise missiles really cost: the price of the Kalibr, Kh-101 and Iskanderchecked 2 Oct 2026
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