You cannot convert newtons to kilograms, or pounds to kilograms,
or kilograms to pounds or newtons.
Newtons and pounds are units of FORCE. Kilogram is a unit of MASS.
If an object weighs 44 newtons on Mars,
then its mass is about 13.5 kilograms
If an object weighs 44 newtons on the Moon,
then its mass is about 27.2 kilograms.
If an object weighs 44 newtons on Earth,
then its mass is about 4.5 kilograms.