One angstrom (A) = 1 × 10 -10 meters or 0.1 nanometers. It is the unit of measurement of extremely small lengths including the atomic or molecular size.
One angstrom is equal to 1 × 10⁻¹⁰ meters**, which is the same as 0.1 nanometers. It’s a super tiny unit often used to measure atomic and molecular sizes.