1광년是多少km？
1광년 = 9,460,730,472,581km
是9,460,730,472,581km，所以说成9,460,730,472,581km也没问题——四舍五入的误差在0.5%以内。
反过来，1km是多少광년？
1km = 0광년
计算公式: km = 광년 × 9,460,730,472,580.8
该数值前后的 광년 → km
0.1 광년946,073,047,258km
0.2 광년1,892,146,094,516km
0.3 광년2,838,219,141,774km
0.4 광년3,784,292,189,032km
0.5 광년4,730,365,236,290km
0.6 광년5,676,438,283,548km
0.7 광년6,622,511,330,807km
0.8 광년7,568,584,378,065km
0.9 광년8,514,657,425,323km
1 광년9,460,730,472,581km
1.1 광년10,406,803,519,839km
1.2 광년11,352,876,567,097km
1.3 광년12,298,949,614,355km
1.4 광년13,245,022,661,613km
1.5 광년14,191,095,708,871km
1.6 광년15,137,168,756,129km
1.7 광년16,083,241,803,387km
1.8 광년17,029,314,850,645km
1.9 광년17,975,387,897,904km
2 광년18,921,460,945,162km