John 12:3

Then Mary took about a pint of expensive perfume, made of pure nard, and she anointed Jesus’ feet and wiped them with her hair. And the house was filled with the fragrance of the perfume.

Note Greek a litra; that is, approximately 12 ounces or 340 grams

Then took Mary a pound of ointment of spikenard, very costly, and anointed the feet of Jesus, and wiped his feet with her hair: and the house was filled with the odour of the ointment.

Therefore Mary took a pound of ointment of pure nard, very precious, and anointed Jesus’ feet and wiped his feet with her hair. The house was filled with the fragrance of the ointment.

Note a Roman pound of 12 ounces, or about 340 grams

Mary therefore took a pound of ointment of pure nard, very precious, and anointed the feet of Jesus, and wiped his feet with her hair: and the house was filled with the odor of the ointment.