A. Yusuf Ali:Translation:
Give full measure when you measure, and weigh with
a balance that is straight: that is the most fitting and
the most advantageous in the final
determination. 2221

Muhammad Asad:Translation:
And give full measure whenever you measure, and weigh with a balance that is true: 44 this will be [for your own] good, and best in the end.
2221 Givingjust measure and weight is not only right in itself but is ultimately to the best spiritual and material advantage of the person who gives it.