Science Bullet RPM Calculator By: Admin Published: July 16, 2025 Comments 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 Inches (in) Centimeters (cm) Millimeters (mm) Bullet RPM RPM RPS (Rev/sec) Calculate Reset Calculation Steps
