Bullet RPM Calculator
Bullet RPM Calculator Enter 4 values to solve: RPM = (Velocity × 720) ÷ Twist Rate. Muzzle Velocity Feet per Second (fps)Meters per Second (m/s)Miles per Hour (mph)Kilometers per Hour (km/h) Barrel Twist Rate Inches (1:X in)Centimeters (1:X cm)Millimeters (1:X mm) Bullet Weight Grains (gr)Grams (g)Ounces (oz) Bullet Diameter Inches (in)Millimeters (mm)Caliber (.XXX) Barrel Length … Read more