| Attogramo | ag | Attogram | ag |
| Blob | blob | Blob | blob |
| Carat | ct | Carat | ct |
| Centigramo | cg | Centigram | cg |
| Decagramo | dag | Decagram | dag |
| Decigramo | dg | Decigram | dg |
| Drachm | dr | Drachm | dr |
| Exagramo | Eg | Exagram | Eg |
| Femtogramo | fg | Femtogram | fg |
| Gigagramo | Gg | Gigagram | Gg |
| Grain | gr | Grain | gr |
| Gramo | g | Gram | g |
| Hectogramo | hg | Hectogram | hg |
| Hundredweight (long, UK) | cwt (long) | Hundredweight (long, UK) | cwt (long) |
| Hundredweight (short, US) | cwt (short) | Hundredweight (short, US) | cwt (short) |
| Kilogramo | kg | Kilogram | kg |
| Kilogramo-fuerza·segundo²/metro | kgf·s²/m | Kilogram-force·second²/meter | kgf·s²/m |
| Libra | lb | pound (or avoirdupois pound) | lb |
| Libra Troy | lbt | Troy pound | lbt |
| Megagramo | Mg | Megagram | Mg |
| Microgramo | µg | Microgram | µg |
| Miligramo | mg | Milligram | mg |
| Nanogramo | ng | Nanogram | ng |
| Onza | oz | Ounce | oz |
| Onza Troy | ozt | Troy ounce | ozt |
| Pennyweight | dwt | Pennyweight | dwt |
| Petagramo | Pg | Petagram | Pg |
| Picogramo | pg | Picogram | pg |
| Quarter | qtr | Quarter | qtr |
| Short assay ton | AT | Short assay ton | AT |
| Slug | slug | Slug | slug |
| Stone | st | Stone | st |
| Teragramo | Tg | Teragram | Tg |
| Ton, long (UK) | ton (long, UK) | Ton, long (UK) | ton (long, UK) |
| Ton, short (US) | ton (short, US) | Ton, short (US) | ton (short, US) |
| Tonelada (o tonelada métrica) | t | Tonne (or metric ton) | t |
| Tonelada imperial | tonUK | Imperial ton (or long ton) | tonUK |
| Unidad técnica de masa | utm | utm | utm |
| Unified atomic mass | u | Unified atomic mass | u |
| Yoctogramo | yg | Yoctogram | yg |
| Yottagramo | Yg | Yottagram | Yg |
| Zeptogramo | zg | Zeptogram | zg |
| Zettagramo | Zg | Zettagram | Zg |