RCF / RPM Converter
Interconvert relative centrifugal force (RCF, ×g) and rotor speed (RPM) based on rotor radius.
Input Parameters
Common rotors
Click to set radius
Formulas
RCF = 1.118 × 10⁻⁵ × r × (RPM)²
r: rotor radius (cm)
RPM = √(RCF / (1.118 × 10⁻⁵ × r))
Common centrifugation references
Pellet cells300–500 ×g / 5–10 min
Pellet bacteria4000–6000 ×g / 10–15 min
Pellet cell debris10000–20000 ×g / 20–30 min
Pellet ribosomes100000 ×g / 1–2 h
Density-gradient centrifugation100000–300000 ×g / 2–16 h