The word(s) "weight" appears 18 time(s) in 18 verse(s) in Quran in Muhammad Pickthal translation.

(11) O my dear son! Lo! though it be but the weight of a grain of mustard-seed, and though it be in a rock, or in the heavens, or in the earth, Allah will bring it forth. Lo! Allah is Subtile, Aware.

(12) Those who disbelieve say: The Hour will never come unto us. Say: Nay, by my Lord, but it is coming unto you surely. (He is) the Knower of the Unseen. Not an atom's weight, or less than that or greater, escapeth Him in the heavens or in the earth, but it is in a clear Record,

(13) Say (O Muhammad): Call upon those whom ye set up beside Allah! They possess not an atom's weight either in the heavens or in the earth, nor have they any share in either, nor hath He an auxiliary among them.

(14) And those who argue concerning Allah after He hath been acknowledged, their argument hath no weight with their Lord, and wrath is upon them and theirs will be an awful doom.

(15) For we shall charge thee with a word of weight.

(16) But if they measure unto them or weight for them, they cause them loss.

(17) And whoso doeth good an atom's weight will see it then,

(18) And whoso doeth ill an atom's weight will see it then.