One nanometer equals how many meters?

One nanometer equals how many meters?

• A. 1 × 10^-6 m
• B. 1 × 10^6 m
• C. 1 × 10^-9 m
• D. 1 × 10^-3 m

Answer: (C)

Nano means one-billionth in the metric system, so a nanometer is 1 × 10^-9 meters. That also means 1 meter equals 1 × 10^9 nanometers, so a nanometer is a billionth of a meter. The other prefixes map to different powers of ten (micro is 10^-6, milli is 10^-3, etc.), so they would give different numbers if you used them. This makes 1 nanometer equal to 1 × 10^-9 meters.

Nano means one-billionth in the metric system, so a nanometer is 1 × 10^-9 meters. That also means 1 meter equals 1 × 10^9 nanometers, so a nanometer is a billionth of a meter. The other prefixes map to different powers of ten (micro is 10^-6, milli is 10^-3, etc.), so they would give different numbers if you used them. This makes 1 nanometer equal to 1 × 10^-9 meters.