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Orders of magnitude (length)
The following are examples of orders of magnitude for different lengths.
To help compare different orders of magnitude, the following list describes various lengths between metres and metres.
The quectometre (SI symbol: qm) is a unit of length in the metric system equal to 10−30 metres. To help compare different orders of magnitude, this section lists lengths shorter than 10−30 m (1 qm). <0 0
The rontometre (SI symbol: rm) is a unit of length in the metric system equal to 10−27 metres.
The yoctometre (SI symbol: ym) is a unit of length in the metric system equal to 10−24 metres.
The zeptometre (SI symbol: zm) is a unit of length in the metric system equal to 10−21 metres. To help compare different orders of magnitude, this section lists lengths between 10−21 m and 10−20 m (1 zm and 10 zm).
To help compare different orders of magnitude, this section lists lengths between 10−20 m and 10−19 m (10 zm and 100 zm).
To help compare different orders of magnitude, this section lists lengths between 10−19 m and 10−18 m (100 zm and 1 am).
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Orders of magnitude (length)
The following are examples of orders of magnitude for different lengths.
To help compare different orders of magnitude, the following list describes various lengths between metres and metres.
The quectometre (SI symbol: qm) is a unit of length in the metric system equal to 10−30 metres. To help compare different orders of magnitude, this section lists lengths shorter than 10−30 m (1 qm). <0 0
The rontometre (SI symbol: rm) is a unit of length in the metric system equal to 10−27 metres.
The yoctometre (SI symbol: ym) is a unit of length in the metric system equal to 10−24 metres.
The zeptometre (SI symbol: zm) is a unit of length in the metric system equal to 10−21 metres. To help compare different orders of magnitude, this section lists lengths between 10−21 m and 10−20 m (1 zm and 10 zm).
To help compare different orders of magnitude, this section lists lengths between 10−20 m and 10−19 m (10 zm and 100 zm).
To help compare different orders of magnitude, this section lists lengths between 10−19 m and 10−18 m (100 zm and 1 am).