皮米(符號 pm,英式英語picometre美式英語picometer)是長度單位,1皮米相當於1的一兆(即一萬億)分之一,即10-12米。有時在原子物理學中稱為微微米micromicron)。

換算關係


  • 1 奈米(nm) = 1 000 皮米
  • 1 微米(µm) = 1 000 000 皮米
  • 1 公釐(mm)= 1 000 000 000 皮米
  • 1 (m)    = 1 000 000 000 000 皮米


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