Queendom Tools

Warp Yarn Weight Calculator

For weaving prep engineers who need a fast preliminary warp beam weight before warping and slashing — they already know the Ne count system and just want ends × yards turned into pounds without opening a spreadsheet.

Estimated Warp Weight

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Results are for preliminary estimation only — verify against the governing standard or a qualified professional.

How to Calculate Warp Yarn Weight

  1. Enter the total ends (the number of warp threads in the set).
  2. Enter the warp length per end in yards.
  3. Enter the yarn count as Ne (English cotton count, hanks/lb).
  4. Read the warp weight in pounds and check the substituted formula and total yarn yards shown beneath it.

FAQ

Q: What is the formula for calculating warp yarn weight?

A: Weight (lb) = (Total Ends × Warp Length in yards) ÷ (840 × Ne) — this calculator applies exactly that formula, so the pound figure is total yarn yards divided by 840 and then by the count.

Q: Why is 840 in the warp weight formula?

A: 840 is the yards-per-hank constant of the English (Ne) count system: total yarn yards ÷ 840 gives hanks, and hanks ÷ Ne gives pounds, since Ne is hanks per pound.

Q: What happens if I enter zero or leave the yarn count blank?

A: A yarn count of zero is a division by zero, so the tool shows "Yarn count must be greater than zero" and displays no weight — all three fields must hold positive numbers before a result appears.

Q: How much does a warp of 4,000 ends at 5,000 yards of Ne 20/1 weigh?

A: (4,000 × 5,000) ÷ (840 × 20) = 20,000,000 ÷ 16,800 = 1,190.48 lb of warp yarn.