180rod是多少m？
180rod = 905.256m
是905.256m，所以说成905m也没问题——四舍五入的误差在0.5%以内。
反过来，180m是多少rod？
180m = 35.791rod
计算公式: m = rod × 5.0292
该数值前后的 rod → m
90 rod452.628m
100 rod502.92m
110 rod553.212m
120 rod603.504m
130 rod653.796m
140 rod704.088m
150 rod754.38m
160 rod804.672m
170 rod854.964m
180 rod905.256m
190 rod955.548m
200 rod1,005.84m
210 rod1,056.132m
220 rod1,106.424m
230 rod1,156.716m
240 rod1,207.008m
250 rod1,257.3m
260 rod1,307.592m
270 rod1,357.884m
280 rod1,408.176m