Relative centrifugal force to revolutions per minute
Type a value in × g to get it in rpm instantly.
That's 5× as strong as separating plasma, while a hard spin-down is 1.2× higher. Your sample effectively weighs 10,000 times its own weight.
Convert the other way: rpm to × g
What it means
How hard is that spin?
Radii are to the bottom of the tube, where the force is highest. A protocol written for the middle of the tube will give a slightly lower figure.
The math
How to convert × g to rpm
Force grows with the square of the speed: RCF = 1.118 × 10⁻⁵ × radius in cm × rpm². The figures below use the rotor selected above.
Example: 10,000 × g = 10,258.2 rpm.
The table below is for Microcentrifuge (8.5 cm).
Every unit
Your spin in every unit
Tables
× g to rpm conversion table
| × g | rpm |
|---|---|
| 500 × g | 2,293.8 rpm |
| 1,000 × g | 3,243.92 rpm |
| 2,000 × g | 4,587.59 rpm |
| 3,000 × g | 5,618.63 rpm |
| 5,000 × g | 7,253.62 rpm |
| 8,000 × g | 9,175.18 rpm |
| 10,000 × g | 10,258.2 rpm |
| 12,000 × g | 11,237.3 rpm |
| 15,000 × g | 12,563.6 rpm |
| 20,000 × g | 14,507.2 rpm |
rpm to × g conversion table
| rpm | × g |
|---|---|
| 500 rpm | 23.7575 × g |
| 1,000 rpm | 95.03 × g |
| 2,000 rpm | 380.12 × g |
| 3,000 rpm | 855.27 × g |
| 5,000 rpm | 2,375.75 × g |
| 8,000 rpm | 6,081.92 × g |
| 10,000 rpm | 9,503 × g |
| 12,000 rpm | 13,684.3 × g |
| 15,000 rpm | 21,381.8 × g |
| 20,000 rpm | 38,012 × g |
Quick answers
Quick answers
- How many rpm is 1 × g?
- 1 × g is 102.582 rpm.
- How many rpm is 10 × g?
- 10 × g is 324.392 rpm.
- How many rpm is 10,000 × g?
- 10,000 × g is 10,258.2 rpm.
The units
About these units
Relative centrifugal force (× g)
How many times ordinary gravity the sample feels. The figure protocols quote.
Revolutions per minute (rpm)
What the machine’s dial reads. Meaningless without the rotor size.
Keep going