Newtons to Kilograms Converter (N to kg)
Convert Force (N) to Mass (kg) using Newton's Second Law. Features adjustable gravity settings for Earth, Moon, Mars, and custom physics calculations.
About
Converting Newtons to Kilograms requires understanding the distinction between force and mass. While often treated as interchangeable in colloquial contexts, strictly speaking, Newtons measure force, whereas Kilograms measure mass. The bridge between them is acceleration, specifically the acceleration due to gravity.
This tool utilizes Newton's Second Law to determine the mass required to generate a specific force under a given gravitational field. Engineers and physics students frequently use this conversion to translate load (force) specifications into structural mass requirements. Accuracy here is dependent on the local gravitational constant ($g$). While standard Earth gravity is the default, variations in altitude or location on other celestial bodies alter the result significantly.
Formulas
The calculation is derived from Newton's Second Law of Motion:
To find mass (m), we rearrange the formula to divide Force (F) by acceleration (a), which in this context is the gravitational acceleration (g):
Standard Earth gravity is defined as:
Reference Data
| Force (N) | Mass on Earth (kg) ($g≈9.81$) | Mass on Moon (kg) ($g≈1.62$) |
|---|---|---|
| 1 | 0.10197 | 0.61728 |
| 10 | 1.01972 | 6.17284 |
| 50 | 5.09858 | 30.8642 |
| 100 | 10.1972 | 61.7284 |
| 500 | 50.9858 | 308.642 |
| 1000 (1 kN) | 101.972 | 617.284 |
| 5000 | 509.858 | 3086.42 |
| 9807 | 1000.00 | 6053.70 |