Leviticus 27:3

if the valuation concerns a male from twenty to sixty years of age, then your valuation shall be fifty shekels of silver, according to the sanctuary shekel.

Note 50 shekels is approximately 1.26 pounds or 569.8 grams of silver; also in verse 16.

Note A shekel weighed approximately 0.4 ounces or 11.4 grams; also in verse 25.

And thy estimation shall be of the male from twenty years old even unto sixty years old, even thy estimation shall be fifty shekels of silver, after the shekel of the sanctuary.

your valuation of a male from twenty years old to sixty years old shall be fifty shekels of silver, according to the shekel of the sanctuary.

Note A shekel is about 10 grams or about 0.35 ounces.

And thy estimation shall be of the male from twenty years old even unto sixty years old, even thy estimation shall be fifty shekels of silver, after the shekel of the sanctuary.