First of all, you should understand that force and mass are quite different things; in many cases it DOESN'T MAKE SENSE to convert one from the other.
In the following special case, you can do a conversion: if you assume measurements near the Earth's surface, a mass of 1 kilogram is attracted with a force of 9.8 newtons. So, if you know the weight in newtons, you can divide that by 9.8 to calculate the mass in kilograms.
6.12kg (mass = Force(newtons) / 9.8)
3640kg is about 35,672 Newtons. (mass x 9.8 = Force)
To convert mass to weight in Newtons, you can use the formula: Weight (N) = mass (kg) x acceleration due to gravity (m/s^2). The acceleration due to gravity on Earth is approximately 9.81 m/s^2. Simply multiply the mass in kilograms by 9.81 to get the weight in Newtons.
To convert kilograms to Newtons, you need to multiply the mass in kilograms by the acceleration due to gravity (9.81 m/s^2). Therefore, 20 kilograms is equal to 196.2 Newtons.
73 kilograms x 9.8 newtons per kilogram (gravity pulling down on the surface of the earth) = 715.4 newtons +++ You cannot convert units of mass into unit of force. The question is based on a misunderstanding, but as the first answer hints, the force applied by a 73kg mass is 715.4N only on Earth. It will be about 112N on the Moon, roughly.
Technically, you can't convert kilograms (a mass unit) into newtons (a force unit).
If you convert 3 newtons into kilograms which measure mass you have 0.30591486389338 kg.
Tons are a measure of mass with dimensions in mass, whereas Newtons are a measure of force. A body of mass 2 tons on earth would have a mass of 2 tons on the moon but because of the difference in the gravitational force exerted by the Earth and Moon, the force exerted by the body would be quite different. Newtons are a metric unit whereas tons is an imperial unit. 1 metric tonne = 1000 kg.
You cannot convert from newtons to kilograms because the newton is a force unit and the kilogram is a mass unit. However, near the surface of the earth, a 22.9-kg mass would weigh 225 newtons.
6.12kg (mass = Force(newtons) / 9.8)
The mass of 1 liter of water is approximately 1 kilogram. To convert this to newtons, you would multiply the mass in kilograms by the acceleration due to gravity, which is about 9.81 m/s^2. So, the weight of 1 liter of water is approximately 9.81 newtons.
Convert the grams to the standard unit of mass - the kilogram. Then, assuming standard Earth gravity, multiply it by 9.8 to get the equivalent in newtons.
3640kg is about 35,672 Newtons. (mass x 9.8 = Force)
To convert mass to weight in Newtons, you can use the formula: Weight (N) = mass (kg) x acceleration due to gravity (m/s^2). The acceleration due to gravity on Earth is approximately 9.81 m/s^2. Simply multiply the mass in kilograms by 9.81 to get the weight in Newtons.
The answer is 110.231 lbs (approx.). Kilogram is the SI unit of mass and pound is an imperial unit of mass. To convert from kg to pound, multiply the kg unit by 2.20462.
Kilograms to Newtons, just multiply the Mass in kilograms by 9.81 and you will have your Newtons True on the surface of the earth, but nowhere else. These things are different, like a cat is not like a drop of water, So they are not inter-convertible. The gravitational force (in Newtons) on a mass (in kg) is its mass multiplied by the local value of the acceleration due to gravity.
To get acceleration when force is in Newtons and mass is in grams, you need to convert the mass from grams to kilograms (1 gram = 0.001 kg) to be consistent with the unit of force (Newton). Then you can use the formula: acceleration = force / mass.