Centrifuge G-Force Calculator (RCF)
Relative centrifugal force from rotor radius and speed.
Protocols specify g, rotors differ in radius — converting wrong ruins preps. 4,000 rpm in a 10 cm rotor is 1,790 g; the same g needs only 2,830 rpm in a 20 cm rotor.
Formula
Centrifuge G-Force Calculator (RCF) is a free rcf calculator for mechanical and machine-design engineers — instant, accurate and 100% client-side, with the governing formula and reference shown next to the result so the number can be defended, not just quoted.
About Centrifuge G-Force Calculator (RCF)
Relative centrifugal force from rotor radius and speed. The calculation implements RCF = 1.118×10⁻⁵ · r(cm) · N² (Lab centrifugation practice). Protocols specify g, rotors differ in radius — converting wrong ruins preps. 4,000 rpm in a 10 cm rotor is 1,790 g; the same g needs only 2,830 rpm in a 20 cm rotor.
How to use Centrifuge G-Force Calculator (RCF)
- 1Enter Rotor radius in mm.
- 2Enter Speed in rpm.
- 3Read RCF instantly — no submit button needed.
- 4Need US units? Flip the SI/Imperial toggle and every field converts.
Why use Centrifuge G-Force Calculator (RCF)?
- ✓Implements the standard formula — RCF = 1.118×10⁻⁵ · r(cm) · N²
- ✓Reference cited on-page: Lab centrifugation practice
- ✓One-click SI ⇄ Imperial toggle — values convert in place, physics stays in SI
- ✓Live worked example: the substitution recomputes from your numbers
- ✓Runs entirely in your browser — nothing uploaded, free forever
Frequently asked questions
What formula does the Centrifuge G-Force Calculator (RCF) use?+
It computes RCF = 1.118×10⁻⁵ · r(cm) · N², per Lab centrifugation practice. The formula is displayed under the result along with a worked example substituted with your own inputs.
What should I keep in mind when using this calculator?+
Protocols specify g, rotors differ in radius — converting wrong ruins preps. 4,000 rpm in a 10 cm rotor is 1,790 g; the same g needs only 2,830 rpm in a 20 cm rotor.
Is this suitable for machine design coursework?+
Yes — these are the exact Shigley/Machinery's-Handbook formulas, with the substitution shown step by step, so you can follow the worked example into your own calculation sheet.
Is the Centrifuge G-Force Calculator (RCF) free to use?+
Yes — completely free, no sign-up, no limits. It runs client-side in your browser, so inputs stay private and results are instant even on slow connections.
Related Engineering tools
Reynolds Number Calculator
Compute Re from density, velocity, pipe diameter and viscosity — with instant laminar/turbulent classification.
● LiveLaminar vs Turbulent Flow Classifier
Classify hydraulic-oil or process-fluid flow regime from kinematic viscosity, line velocity and tube bore.
● LiveBernoulli Equation Solver
Solve downstream pressure between two points from velocities, elevations and fluid density (ideal, lossless).
● Live