The picometre (international spelling as used by the International Bureau of Weights and Measures; SI symbol: pm) or picometer (American spelling) is a unit of length in the International System of Units (SI), equal to 1 × 10−12 m, or one trillionth (⁠ 1 1 000 000 000 000⁠) of a metre, which is the SI base unit of length.

皮米（符號 pm，英式英语： picometre 、美式英语： picometer ）是长度单位，1皮米相当于1米的一兆（即一萬億）分之一，即10-12 米。 有时在 原子物理学 中称为 微微米 （ micromicron ）。

A picometre is a measurement. It is one millionth of a millionth of a metre. It is also one billionth of a millimetre. This is very small. Many atoms are larger than this. A picometer is 1×10−12 m (1 / 1,000,000,000,000 m). 1 picometer equals 0.001 nanometre, 0.01 angstrom or 1000 femtometre

皮米 (picometer或pm)是长度单位，1皮米相当于1米的一万亿分之一。 1 皮米=10^-12米；1 皮米 (pm) = 1 000飞米；1 000 皮米 = 1 纳米 (nm)

Use this easy and mobile-friendly calculator to convert between picometers and meters. Just type the number of picometers into the box and hit the Calculate button.

A picometer is a unit of Length or Distance in the Metric System. The symbol for picometer is pm and the International spelling for this unit is picometre. The base unit for a picometer is meter and the prefix is pico. The prefix pico means one trillionth and is symbolized as p in the Metric System.

The picometer is a multiple of the unit meter (m) for length & distance. The International System of Units (SI) defines the prefix pico (p) as a factor of 10⁻¹² or 0.000000000001. Per this definition, one picometer is 10⁻¹² meters. The picometer is represented by the symbol pm.

picometre，英语单词，主要用作为名词，用作名词译为“百亿分之一米”。

皮米（符号 pm，英式英文： picometre 、美式英文： picometer ）是长度单位，1皮米相当于1米的一兆（即一万亿）分之一，即10-12 米。 有时在 原子物理学 中称为 微微米 （ micromicron ）。

The picometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: pm) or picometer (American spelling) is a unit of length in the metric system, equal to one trillionth (i.e., 1 / 1,000,000,000,000) of a metre, which is …