Mass is a unit or system of units by which a degree of heaviness is measured. The metric system uses grams (g), kilograms (kg) and tonnes (t). The Imperial system uses ounces (oz), pounds (lb) and tons (T). In the workshop, you will use these measurements to determine the lifting capacity of equipment like hydraulic and engine hoists and floor jacks.
| Mass conversions | |
| 1 oz = 28.3 g | 1000 g = 1 kg |
| 16 oz = 1 lb | 1 lb = 453 g |
| 2.2 lb = 1 kg | 1000 kg = 1 t |
| 2240 lb = 1 Ton | 1 T = 0.98 tonne |
| 1 tonne = 1.01 T | |
