1,000pc是多少ly？
1,000pc = 3,261.5638ly
是3,261.5638ly，所以说成3,262ly也没问题——四舍五入的误差在0.5%以内。
反过来，1,000ly是多少pc？
1,000ly = 306.6014pc
计算公式: ly = pc × 3.261564
该数值前后的 pc → ly
100 pc326.1564ly
200 pc652.3128ly
300 pc978.4691ly
400 pc1,304.6255ly
500 pc1,630.7819ly
600 pc1,956.9383ly
700 pc2,283.0946ly
800 pc2,609.251ly
900 pc2,935.4074ly
1,000 pc3,261.5638ly
1,100 pc3,587.7202ly
1,200 pc3,913.8765ly
1,300 pc4,240.0329ly
1,400 pc4,566.1893ly
1,500 pc4,892.3457ly
1,600 pc5,218.502ly
1,700 pc5,544.6584ly
1,800 pc5,870.8148ly
1,900 pc6,196.9712ly
2,000 pc6,523.1276ly