Convert Newtons to Carats
Convert Newtons (N) to Carats (ct) instantly and accurately.
Conversion Formula
ct = N × 509.8581065
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 Carats
A metric carat (ct or CD) is exactly 200 milligrams (0.2 g), the universal standard for weighing gemstones. Established internationally in 1907, it replaced fractionally different regional carat weights previously used in different countries. The total weight of a diamond or colored gemstone is always expressed in carats: a 1.00 ct diamond of excellent cut and color can command over $5,000. The Cullinan diamond, the largest gem-quality rough diamond ever found, weighed 3,106.75 carats.
Quick Reference Table
| Newtons (N) | Carats (ct) |
|---|---|
| 1 N | 509.858 ct |
| 2 N | 1019.72 ct |
| 5 N | 2549.29 ct |
| 10 N | 5098.58 ct |
| 25 N | 12746.5 ct |
| 50 N | 25492.9 ct |
| 100 N | 50985.8 ct |