Convert Newtons to Stones
Convert Newtons (N) to Stones (st) instantly and accurately.
Conversion Formula
st = N × 0.01605778165
About Newtons
The newton (N) is the SI unit of force, but because weight is technically the gravitational force on a mass, newtons are the scientifically correct unit for what most people call 'weight.' At standard gravity (9.80665 m/s²), 1 kg of mass exerts a weight force of approximately 9.81 N. Scales in physics labs and engineering contexts display results in newtons rather than kilograms. The distinction matters in aerospace and high-altitude contexts: an astronaut's mass stays constant at, say, 70 kg, but their weight in newtons changes from ~686 N on Earth's surface to nearly 0 N in free-fall orbit.
About Stones
A stone (st) equals 14 pounds or approximately 6.350 kg. It is the standard unit for expressing human body weight in the United Kingdom and Ireland, where a person will say they weigh '11 stone 4' (meaning 11 stone and 4 pounds, or 158 lb / 71.7 kg). Despite the UK's official adoption of the metric system, stones remain the dominant unit for personal body weight on British bathroom scales, in doctors' offices, and in everyday conversation. British newspapers and sports reports routinely describe athletes' weights in stones and pounds.
Quick Reference Table
| Newtons (N) | Stones (st) |
|---|---|
| 1 N | 0.0160578 st |
| 2 N | 0.0321156 st |
| 5 N | 0.0802889 st |
| 10 N | 0.160578 st |
| 25 N | 0.401445 st |
| 50 N | 0.802889 st |
| 100 N | 1.60578 st |