What size of hand embroidery needle should I use?

This guide focuses on hand embroidery needles, but the principles apply to various hand sewing needles.

Embroidery needle dimensions
Hand embroidery needles typically range in sizes from 1 to 10, with size 1 being the most substantial.

Larger needles (sizes 1-5):
- Advantage: Larger eyes facilitate easier threading. 
- Disadvantage: Thick shafts and eyes may leave sizable holes in fabric.
- Disadvantage: Larger needles can compromise accuracy when detailing small stitches.

Smaller needles (sizes 6-10):
- Advantage: Smaller needles excel in intricate, detailed work, enhancing stitching precision.
- Advantage: Slimmer needles can navigate delicate fabrics without causing damage.
- Disadvantage: Smaller eyes can pose threading difficulties.
- Disadvantage: Small needles might prove too fragile for robust materials like canvas.

Best practice

For needlework, I recommend using the smallest needle possible without causing frustration during threading. For instance, when working with a single strand of 6-stranded embroidery floss, opt for a size 9 or 10 needle. If threading proves challenging, consider a larger needle. When utilizing all 6 strands, aim for a size 5 needle. Some days this works well, while on others, a size 3 needle may be more suitable. Hand embroidery should remain enjoyable. Avoid expending energy by forcing threads through excessively small needle eyes, as this could damage both the threads and your peace of mind.