For Fades & Very Short Hair:
* #0 (1/16 inch or 1.5mm): Used for a very close, buzzed look, often the base of a fade. Can expose the scalp.
* #1 (1/8 inch or 3mm): Still very short, but a bit more forgiving than a #0. Commonly used for fades.
* #2 (1/4 inch or 6mm): A good starting point for a very short buzz cut. Also used in fades to transition from shorter to slightly longer lengths.
* #3 (3/8 inch or 9mm): The longest option when considering a fade. This length is good for making a less dramatic transition from short to long.
For Medium Length Hair:
* #4 (1/2 inch or 13mm): This is a good length for a simple, slightly longer buzz cut. Can also be used on the top of the head while fading the sides.
* #5 (5/8 inch or 16mm): Leaves a noticeable amount of length.
* #6 (3/4 inch or 19mm): Starting to get into longer hair territory.
* #7 (7/8 inch or 22mm): This is a good option for a very uniform and traditional haircut.
* #8 (1 inch or 25mm): The longest attachment you can use. This leaves your hair relatively long and natural.
Here's a quick guide based on common styles:
* Buzz Cut: #0 - #4 (depending on how short you want it)
* Fade: Often uses a combination of #0, #1, #2, and sometimes #3, blending the lengths.
* Crew Cut: #2 or #3 on the sides and back, slightly longer on top.
* Longer on Top, Shorter on Sides: Use a shorter blade (e.g., #2 - #4) on the sides and back, and longer (scissors or a longer guard) on top.
Important Considerations:
* Hair Thickness: Thicker hair will appear shorter than thinner hair when using the same blade length. If you have thick hair, you might need a slightly longer blade to achieve the desired length.
* Hair Texture: Curly or wavy hair will also appear shorter than straight hair at the same blade length.
* Head Shape: Consider your head shape. Very short cuts can accentuate any bumps or unevenness.
* Gradual Approach: It's always better to start with a longer blade and gradually go shorter if needed. You can't put hair back on!
* Professional Advice: If you're unsure, the best approach is to consult with a barber or stylist. They can assess your hair type, head shape, and desired style and recommend the appropriate blade lengths.
* Quality Clippers: Invest in a good set of clippers. They will cut more evenly and last longer.
* Guard Size Labeling: Be aware that different clipper brands might have *slight* variations in the exact length of their guards. It's always a good idea to double-check the actual length (in millimeters or inches) if you're switching brands.
In summary, there is no single "best" blade length. It depends entirely on the look you want! Start with a longer guard if you're unsure, and don't be afraid to consult with a professional for guidance.