How do you convert newton into mass?

Answer:
1 newton N is the force of Earth's gravity on an object with a mass m of about 102 gram or 0.102 kilogram.
On Earth's surface, a mass of 1 kilogram exerts a force of approximately 9.81 N down; or 1 kgf. The approximation of 1 kilogram corresponding to 10 newton is sometimes used as a rule of thumb in everyday life and in engineering.
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