The relation between units of mass

Units of mass	kg	Mt	t	q	g	mg	u
1 kg	1	10-9	10-3	0.01	103	106	6.02·1026
1 Mt	109	1	106	107	1012	1015	6.02·1035
1 t	103	10-6	1	10	106	109	6.02·1029
1 q	100	10-7	0.1	1	105	108	6.02·1028
1 g	10-3	10-12	10-6	10-5	1	103	6.02·1023
1 mg	10-6	10-15	10-9	10-8	10-3	1	6.02·1020
1 u	1.66·10-27	1.66·10-36	1.66·10-30	1.66·10-29	1.66·10-24	1.66·10-21	1

 
 
Note. A more exact value of the atomic mass unit: 1 u =1.66057 ·10^-27 kg.