Countries using Imperial pounds and ounces:
USA, UK, Eire, South Africa, India, Canada, Australia and the some Commonwealth of Nations.
The Japanese 1 yen coin has a mass of one gram. (lighter than the British penny (3.56 g), the United States cent (2.5 g) or the "Euro-cent" (2.30 g)).
What's the formula to convert grams into ounces
Multiply grams by 0.0353 to convert grams into ounces
4215 g = 148.7895 oz
Answer = int(4215 * .0353) [148 oz]
The formual for converting ounces to pounds and ounces (rather than decimal fractions)
oz_start = 148
lb_calc = int(oz_start/16) [therefore lb_calc == 9 lb]
oz_calc = 148 - (lb_calc * 16) [therefore oz_calc = 4 oz]
Answer = lb_calc, oz_calc [9 lb, 4 oz]
Wikipedia links covering units of mass show/hide