Love/Dupuy Collection
Soviet Anti-Tank Belt Model

(Revised May 2024)

References:
TM 30-430 Handbook on USSR Military Forces - Chapter V, Tactics, Page V-71 (1 November 1945)
The Soviet Economy and the Red Army, 1930-1945, by Walter S. Dunn, Jr.
Kursk: Hitler's Gamble, 1943 by Walter S. Dunn, Jr.

This equation was apparently used during WWII by the Soviets to estimate the number of Anti-Tank Guns they'd need per kilometer of frontage. It can be used for more modern weapons such as ATGMs.

Where:

G: Guns needed per kilometer of frontage
T: Number of enemy tanks expected to attack 1 km of front
K: Number of rounds required to stop one enemy tank by the Anti-Tank Gun
S: Number of rounds fired per minute by the Anti-Tank Gun
A: Maximum distance at which a tank can be destroyed by the Anti-Tank Gun (meters)
B: Distance a tank can move in one minute (meters)

Pre-Built Calculator

Tank Variables

Tanks per Kilometer of Frontage (T)
Tank Speed (B)

Speed Examples:

WWI Tanks: 80 meters per min. - 5 km/h - 2.98 mph
WWII Tanks: 250 meters per min. - 15 km/h - 9.32 mph
Modern Tanks: 500 meters per min. - 30 km/h - 18.64 mph

Anti-Tank Weapon Variables
Max. Distance (A) at which a Tank can be Destroyed (meters)
Rounds (K) needed to destroy one enemy tank (average)

TM-30-340 says regarding K:

On the basis of experience against enemy armor, the Red Army figures on six rounds of fire from 76.2-mm antitank guns, or 12 rounds from 45-mm antitank guns, for the destruction of one medium tank.
Rate of Fire (S) by the anti-tank weapon

The Soviet Economy and the Red Army, 1930-1945 says regarding S:

45mm AT Gun: 15 Rounds Per Minute
76mm AT Gun: 10 Rounds Per Minute

Weapons needed per Kilometer of Frontage: