| 2.67923 | libra (troy) |
| 2.20462 | libra |
| 1000 | gramo |
| 1 | kilogramo |
| 1000000 | microgramo |
| 1000000000 | microgramme |
| 32.1507 | onza (troy) |
| 0.001 | tonelada |
| 35.274 | onza |
| 0.068073 | arroba |
| 66.6667 | thai |
| 5000 | quilate (internacional) |
| 5000 | quilate (métrico) |
| 3858.09 | quilate (británico) |
| 0.00714286 | carga (mexicana) |
| 0.008 | carga (colombiana) |
| 0.00621118 | carga (costarricense) |
| 2 | catty (china) |
| 1.66667 | catty (Japón, Tailandia) |
| 0.0220462 | cental |
| 100000 | centigramo |
| 0.02 | quintal (Alemania) |
| 0.02 | quintal (Dinamarca) |
| 2 | chin (China) |
| 266.667 | chin (Camboya) |
| 264.55 | chin (Hong Kong) |
| 0.314961 | clove |
| 909.091 | denaro (Italia) |
| 784.314 | denier (Francia) |
| 263.158 | dracma |
| 564.383 | dram |
| 1.09777E+30 | electrón masa |
| 1.0E-15 | exagramo |
| 1.0E+18 | femtogramo |
| 1.0E-6 | gigagramo |
| 1.0E-12 | gigatonelada |
| 15432.4 | grano |
| 1219.51 | grano (Alemania) |
| 20387.4 | grano (Italia) |
| 20000 | grano (España) |
| 261.506 | gros (Francia) |
| 0.101972 | hyl |