Numbers 18:16

16You are to pay the redemption price for a month-old male according to your valuation: five shekels of silver,18:16 5 shekels is approximately 2 ounces or 57 grams of silver. according to the sanctuary shekel, which is twenty gerahs.18:16 20 gerahs is equivalent to one shekel (approximately 0.4 ounces or 11.4 grams).