1斤是多少g？
1斤 = 500g
是500g，所以说成500g也没问题——四舍五入的误差在0.5%以内。
反过来，1g是多少斤？
1g = 0斤
计算公式: g = 斤 × 500
该数值前后的 斤 → g
0.1 斤50g
0.2 斤100g
0.3 斤150g
0.4 斤200g
0.5 斤250g
0.6 斤300g
0.7 斤350g
0.8 斤400g
0.9 斤450g
1 斤500g
1.1 斤550g
1.2 斤600g
1.3 斤650g
1.4 斤700g
1.5 斤750g
1.6 斤800g
1.7 斤850g
1.8 斤900g
1.9 斤950g
2 斤1,000g