Newton to kg Converter
Use this free Newton to kg converter to easily convert force (Newtons) to mass (kilograms) and vice versa. Based on Newton’s Second Law, this tool ensures accurate calculations using Earth’s gravitational acceleration 9.81 m/s².
How to Convert Newtons to kg?
The relationship between force (N) and mass (kg) is given by:
Formula:
Force (N) = Mass (kg) × Gravity (m/s²)
Where:
- Force (N) = Newtons
- Mass (kg) = Kilograms
- Gravity = 9.81 m/s² on Earth
To convert:
- Newton to kg:
Mass (kg) = Force (N) / 9.81
Example: Convert 50 N to kg
50 / 9.81 = 5.10 kg
- kg to Newton:
Force (N) = Mass (kg) × 9.81
Example: Convert 10 kg to N
10 × 9.81 = 98.1 N
Newton to kg Conversion Table
| Newtons (N) | Kilograms (kg) |
|---|---|
| 1 N | 0.102 kg |
| 5 N | 0.510 kg |
| 10 N | 1.02 kg |
| 20 N | 2.04 kg |
| 50 N | 5.10 kg |
| 100 N | 10.2 kg |
| 500 N | 51 kg |
| 1000 N | 102 kg |
Why Use This Converter?
- Accurate: Uses standard gravitational acceleration 9.81 m/s².
- Instant Results: Get conversions in real time.
- Convenient for Physics and Engineering: Useful for students, engineers, and professionals.
Frequently Asked Questions (FAQs)
1. What is a Newton?
A Newton (N) is the unit of force in the SI system. It represents the force needed to accelerate a 1 kg mass by 1 m/s².
2. How many Newtons are in 1 kg?
1 kg weighs 9.81 N on Earth, based on Earth’s gravity 9.81 m/s².
3. How do you convert Newtons to kg?
Use the formula:
Mass (kg) = Force (N) / 9.81
For example, 100 N = 100 ÷ 9.81 = 10.2 kg.
4. How do you convert kg to Newtons?
Use the formula:
Force (N) = Mass (kg) × 9.81
For example, 10 kg = 10 × 9.81 = 98.1 N.
5. Is 1 Newton equal to 1 kg?
No, 1 N = 0.102 kg, because Newton measures force, while kg measures mass.
6. What is the formula for force in Newtons?
The formula is:
Force (N) = Mass (kg) × Gravity (9.81 m/s²)
7. Does gravity affect Newton to kg conversion?
Yes. The converter assumes Earth’s gravity (9.81 m/s²). On other planets, gravity varies, changing the conversion.
8. How do I convert Newtons to kg on the Moon?
The Moon’s gravity is 1.62 m/s², so:
Mass (kg) = Force (N) / 1.62
For example, 10 N = 10 ÷ 1.62 ≈ 6.17 kg on the Moon.
9. Can I use this converter for any object?
Yes, as long as the force and mass are measured under standard Earth gravity (9.81 m/s²).
10. Why is weight measured in Newtons?
Weight is a force, which depends on gravity. Since gravity varies, weight is measured in Newtons, while mass remains constant in kg.
