# What is the ideal length of thread when doing hand stitching?

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## How long should my sewing thread be?

Your thread should never be longer than from your fingertips to your elbow: The best thread length to sew with varies according to individual body size, but it should be about the same as the length from your fingertips to elbow, where the physical action of sewing occurs.

## How do I calculate how much thread I need?

By dividing the amount of thread by the seam length, we get the ratio of thread consumed. If we multiply this factor times the total length of seam, we can determine the total thread consumed for that seam. *Generally, 10% to 15% wastage of thread is added to the consumption derived.

## What is a normal stitch length?

The average stitch length for mid-weight fabrics is 2.5 to 3 mm/10 to 12 spi. The average stitch length for fine fabrics is 2 mm/13 to 20 spi. For heavier fabrics, basting, or topstitching, use 4 to 5 mm/5 to 6 spi.

## How is stitch length calculated?

The formula is this: 25.4 divided by the metric length of the stitch such as 2.5 equals the number of stitches per inch. Here’s an example. To figure out how many stitches per inch a 2.5 metric setting will give you: 25.4 divided by 2.5 = 10.16 stitches per inch.

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Instead, before you cut your thread just remember the 4x rule. Cut a length of thread 4 times the length of your project plus a few inches for good measure. You might end up wasting a few inches here and there, but that is a much better scenario then running out of thread before you can finish you stitching.

## How do you calculate thread consumption?

Example:

1. Length of seam = 220 cm.
2. Stitch class 301 = Single thread lock stitch.
3. Thread ratio obtained from the table (thread length per cm of seam) = 2.5 cm.
4. Total sewing thread consumption = 220 × 2.5 = 550 cm.
5. Consumption of needle thread = 1210 × 0.25 = 275 cm.
6. Consumption of looper thread = 1210 × 0.75 = 275 cm.

## What to do if you run out of thread while sewing?

If you run out of bobbin thread while your doing a top stitch, you’ll want to step away from your machine for a minute, reload your thread, and then get your scissors. You’ll need to carefully cut and remove the stitch that ran out on you.