Conversion Note: Uses standard gravitational acceleration (g = 9.80665 m/s²) | 1 kgf ≈ 9.80665 N

Newton to Kilogram Converter

Convert between Newtons (force) and Kilograms (mass) using the standard gravitational acceleration. Useful for physics calculations and engineering applications.

Current conversion: Newtons → Kilograms

Enter Value in Newtons

Enter any non-negative number (force in Newtons)

Result in Kilograms

Precision: 2 Decimal Places | Formula: kg = N ÷ 9.80665

Conversion Table

Newtons (N)	Equals	Kilograms (kg)
1 N	=	0.10197 kg
5 N	=	0.50986 kg
10 N	=	1.01972 kg
20 N	=	2.03943 kg
50 N	=	5.09858 kg
9.80665 N	=	1 kg
100 N	=	10.19716 kg
500 N	=	50.98581 kg
1000 N	=	101.97162 kg

Kilograms to Newtons Conversion Table

Kilograms (kg)	Equals	Newtons (N)
1 kg	=	9.80665 N
5 kg	=	49.03325 N
10 kg	=	98.06650 N
20 kg	=	196.13300 N
50 kg	=	490.33250 N
100 kg	=	980.66500 N
500 kg	=	4903.32500 N

Quick Conversion Shortcuts

Newtons → Kilograms

About Newton and Kilogram Conversion

Conversion Formulas

Newtons to Kilograms

kg = N ÷ 9.80665

Example: 50 N ÷ 9.80665 = 5.09858 kg

Kilograms to Newtons

N = kg × 9.80665

Example: 10 kg × 9.80665 = 98.0665 N

Unit Definitions

Newton (N)

The Newton is the SI unit of force. One newton is the force required to accelerate a mass of one kilogram at a rate of one meter per second squared.

Kilogram (kg)

The Kilogram is the SI unit of mass. It is defined by taking the fixed numerical value of the Planck constant to be 6.62607015×10⁻³⁴ when expressed in the unit J·s, which is equal to kg·m²·s⁻¹.

Gravitational Acceleration

This conversion uses the standard gravitational acceleration (g = 9.80665 m/s²) defined by the International Bureau of Weights and Measures. Note that actual gravitational acceleration varies slightly across Earth's surface (approximately 9.78 to 9.83 m/s²) depending on location.

For most practical purposes, 9.81 m/s² is used as an approximation, but this converter uses the precise standard value for accuracy.

Frequently Asked Questions

Newtons measure force, while Kilograms measure mass. They are different physical quantities. The conversion depends on gravitational acceleration (F = m × g), which is why we use the standard gravity value (9.80665 m/s²) to relate these units.

In everyday language, people often refer to "weight" in kilograms, but this is technically incorrect. Weight is a force and should be measured in Newtons, while mass is measured in kilograms.

One kilogram of mass exerts a force of approximately 9.80665 Newtons under standard gravity. This means:

1 kg × 9.80665 m/s² = 9.80665 N

This is often approximated as 10 N for quick calculations, but 9.81 N is more accurate for most applications.

Gravitational acceleration (g) is necessary because we're converting between mass (kg) and weight/force (N). According to Newton's second law of motion:

Force (N) = Mass (kg) × Acceleration (m/s²)

Weight (N) = Mass (kg) × Gravitational acceleration (m/s²)

On Earth, the standard value for gravitational acceleration is 9.80665 m/s², which is used in this conversion.

Yes, the conversion would be different on the Moon because gravitational acceleration is weaker there (approximately 1.625 m/s²).

For example, a 10 kg mass would weigh:

On Earth: 10 kg × 9.80665 m/s² = 98.0665 N
On Moon: 10 kg × 1.625 m/s² = 16.25 N

This converter uses Earth's standard gravitational acceleration, as specified for most scientific and engineering applications.

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Newton to Kilogram Converter

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Conversion Table

Kilograms to Newtons Conversion Table

Quick Conversion Shortcuts

Newtons → Kilograms

About Newton and Kilogram Conversion

Conversion Formulas

Unit Definitions

Newton (N)

Kilogram (kg)

Gravitational Acceleration

Frequently Asked Questions

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