Supersonic Range Calculator
Understanding the supersonic range of your bullet is essential for precision long range shooting. As a bullet travels downrange, it continuously loses velocity due to air resistance. The moment it drops below the speed of sound (approximately 343 m/s at sea level), it enters the transonic zone. This transition causes significant instability and unpredictable flight behaviour. This calculator determines exactly where that boundary lies for your specific load.
This calculator is optimised for use on desktop and laptop. The mobile version is currently in development.
HOP's Supersonic Range Calculator
Calculate the maximum distance your projectile remains supersonic using professional G1/G7 drag models
Bullet Selection
m/s
Environmental Conditions
°C
m
Results
Supersonic Range
--
meters
Speed of Sound
--
m/s (Mach 1)
V₀ / Mach
--
Mach number at muzzle
BC Model
--
Drag function
Range Analysis
0m 500m 1000m 1500m 2000m+
📐 Calculation Method
Numerical integration with G1/G7 drag tables
Retardatie = (ρ/ρ₀) × G(M) × V² / BC × k
Where:
G(M) = drag coefficient at Mach M
BC = ballistic coefficient
ρ = air density at current conditions
V = current velocity
Retardatie = (ρ/ρ₀) × G(M) × V² / BC × k
Where:
G(M) = drag coefficient at Mach M
BC = ballistic coefficient
ρ = air density at current conditions
V = current velocity