Convert Finger (Cloth) (finger) to Nanometer (nm) instantly.
About these units
Finger (Cloth) (finger)
The cloth finger is a small measurement used in tailoring and weaving, typically about 2.1 cm (0.83 inches). It allowed precise adjustments when cutting and aligning fabric patterns. Merchants and craftsmen relied on the finger as a convenient subdivision of larger units like spans and ells. Its use highlights the practical application of body-based measurements in the textile industry. While no longer standard, the cloth finger provides a window into historical garment production and the role of human-scale units in everyday work.
Nanometer (nm)
A nanometer—one billionth of a meter (10⁻⁹ m)—is central to nanoscience, nanotechnology, and molecular biology. Many structures essential to life fall into this scale: DNA's double helix is about 2 nm wide, viruses often measure tens to hundreds of nanometers, and key cell structures like ribosomes are on the order of 20–30 nm. In engineering, nanometers define the dimensions of modern semiconductor technology. Silicon transistors have shrunk to features only a few nanometers wide, approaching the physical limits of electron behavior in solid-state materials. In optics, wavelengths of ultraviolet light can be expressed in nanometers, as can surface roughness, material grain sizes, and thin-film coatings. The nanometer is ubiquitous across modern science because it describes both biological and technological structures at the frontier of research.