DOSSIER · UNCLASSIFIED · OPERATIONS
SECTION 10 // ARMOR / VEHICLE PROFILEREF · KV-1S
KV-1S
VI

KV-1S

USSRUSSR·Heavy TankHeavy Tank·HT universal

A further modification of the KV-1 heavy tank series developed in the summer of 1942. It passed into Red Army service on August 20, 1942. Compared to its predecessors, KV-1S had several design features which allowed for the tank’s weight to be reduced to 42.3 tons. Also, the KV-1S had increased top speed, maneuverability, and durability. However, the 76-mm ZIS-5 gun remained. This, coupled with reduced and inefficient armoring, made the new vehicle basically equal to the T-34 in terms of battle performance. A total of 1,083 vehicles of this modification were manufactured. This tank was widely used on all fronts of the Great Patriotic War.

Configuration
Health
1,150
DPM
2,455
View range
340m
Speed
43km/h
Camo
29Poor
Mark of Excellence requirementsCombined dmg + assist · NA · 2026-08-25
3 marks of excellence
3 marks · 95%
1,652
2 marks of excellence
2 marks · 85%
1,325
1 mark of excellence
1 mark · 65%
896
A-01 · ARMOR SCHEMA

Armor thicknessMeasured

Nominal plate thickness straight from the game client. Click any plate to highlight it on the 3D model and focus the camera on it.

Armor
20mm
82mm

Hull

All 12 plates

Turret 2 of 2

All 15 plates
A-02 · SPECIFICATIONS

Specifications

Builds
Grade
Experimental
CrewShared perks
Field mods
Lv 0/5
Weaponry
DPM
2,455
Damage
450
Penetration
61 mm
… at 500m
61 mm
Reload time
11.00 s
Rate of fire
5.45/min
Aim time
2.90 s
Dispersion
0.480 m
… moving
0.200
… tank traverse
0.200
… turret traverse
0.140
… after firing
3.0
Damage vs. modules
165
Caliber
122.0 mm
Shell velocity
515 m/s
Max range
720 m
Ammo capacity
85
Potential damage
38,250
Shell cost
257 cr
Mobility
Top speed
43 km/h
Reverse speed
14 km/h
Power/weight
14.95 hp/t
Tank traverse
38.0 °/s
Turret traverse
31.0 °/s
Effective top speed
… hard
43.0 km/h
… medium
43.0 km/h
… soft
26.0 km/h
Effective traverse
… hard
38.0 °/s
… medium
35.1 °/s
… soft
19.8 °/s
Gun elevation
20 °
Gun depression
5 °
Gun traverse range
360°
Terrain resistance
… hard
1.20
… medium
1.30
… soft
2.30
Everything Else
Hull armor
75 / 60 / 60
Turret armor
82 / 82 / 82
Health
1,150
Engine health
190
… repaired
95
Track health
140
… repaired
100
… repair time
6.86 s
Ammo rack health
160
… repaired
100
Fuel tank health
150
… repaired
60
Total weight
44,150 kg
Stationary camo
6.90 / 1.43%
Moving camo
3.45 / 0.71%
View range
340 m
Fire chance
15%
Tank cost
910,000 cr
Gun Constraints

360° traverse

Crew
  • Commander
  • Gunner
  • Driver
  • Radio Operator
  • Loader
A-03 · MODULE RESEARCH

Module research

Guns
V
Stock
76 mm ZiS-5 (KV-1S)
VI
4,350
85 mm S-31M
VI
3,720
122 mm Howitzer S-41
Turrets
V
Stock
KV-1S
VI
4,650
KV-122 mod. 1944
Radios
VII
Stock
10RK
Engines
V
Stock
V-2K (KV-1S)
VI
11,000
V-2IS (KV-1S)
Tracks
V
Stock
KV-1S mod. 1942
VI
4,450
KV-1S mod. 1943
A-04 · SERVER PERFORMANCE

Server performance

Aggregate stats from NA players over the last 30d

Avg WN8
1338
Good
Avg WNX
1111
aboveAverage
Win rate
49.1%
Below Average
DPG
786
Frags
0.70
Spots
0.93
Survival
22.6%
Dmg taken
1089
Hit rate
69.5%
Spot assist
148
Track assist
27
Defense
0.20
Avg XP
579

Aggregated from 1,423 tracked NA players · 10,539 battles. Coverage grows as more players are tracked.

MoE thresholds (combined dmg + assist)
65%896
85%1,325
95%1,652

Reach these combined damage (dealt + assist) values over a rolling window to earn marks of excellence.

Performance over time

Daily NA 30-day aggregates — how this tank trends as patches and meta shift

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Population spread

How NA players actually perform in this tank (30-day window)

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A-05 · TOP OPERATORS

Top players

Highest performers in the KV-1S on NA

  1. #1Holsety101 battles1,810
  2. #2__The_Bananero_ak47_130 battles1,649
  3. #3ZeZioOo249 battles1,592
  4. #41lb127 battles1,573
  5. #5CharlesDiaper164 battles1,471
  6. #6Hun83141 battles1,438
  7. #7IGTS_Death134 battles1,396
  8. #8DVSdrummer55168 battles1,383
  9. #9Immortal_Empire105 battles1,360
  10. #10_Dracco_311 battles1,315
A-06 · VIDEO INTEL

Video reviews

Curated reviews, replays, and guides from veteran players

A-07 · SIMILAR HULLS

Similar tanks

Closest matches by stat profile — pick the ones that fit your playstyle.

A-08 · CHANGELOG

Balance changelog

What changed for this tank between game versions

  1. 2.0Sep 1, 2025
    • Mobility on hard terrain——
    • Mobility on medium terrain——
    • Mobility on soft terrain——
    • EngineV-2KV-2K (KV-1S)
    • Power500580
    • EngineV-2ISV-2IS (KV-1S)
    • Power600660
    • Vehicle durability10501100
    • View range320330
    • Vehicle durability11001150
    • GunKV-1S / 76 mm ZiS-5KV-1S / 76 mm ZiS-5 (KV-1S)
    • Reload time4.23.4
    • Dispersion at 100 m0.380.37
    • Aiming time2.32
    • Dispersion on turret traverse——
    • Dispersion after firing——
    • AP damage110120
    • APCR* damage110120
    • HE damage156170
    • AP penetration86136
    • APCR* penetration102183
    • Reload time4.95.2
    • Dispersion at 100 m0.380.37
    • Aiming time2.72
    • Dispersion on turret traverse——
    • Dispersion after firing——
    • AP damage160180
    • APCR* damage160180
    • HE damage280300
    • AP penetration150162
    • Depression angle3.55
    • GunKV-122 mod. 1944 / 76 mm ZiS-5KV-122 mod. 1944 / 76 mm ZiS-5 (KV-1S)
    • Reload time43.3
    • Dispersion at 100 m0.380.37
    • Aiming time2.31.9
    • Dispersion on turret traverse——
    • Dispersion after firing——
    • AP damage110120
    • APCR* damage110120
    • HE damage156170
    • AP penetration86136
    • APCR* penetration102183
    • Reload time4.65.1
    • Dispersion at 100 m0.380.37
    • Aiming time2.11.9
    • Dispersion on turret traverse——
    • AP damage160180
    • APCR* damage160180
    • HE damage280300
    • AP penetration150162
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