US Units of Length
Unit |
Divisions |
SI Equivalent |
Exact relationships shown boldface |
1 inch (in) |
|
25.4 mm |
1 foot (ft) |
12 in |
0.3048 m |
1 yard (yd) |
3 ft |
0.9144 m |
1 mile (mi) |
5,280 ft |
1.609344 km |
US Units of Area
Unit |
Divisions |
SI Equivalent |
1 square inch (sq in) |
|
645.16 mm² |
1 square foot (sq ft) |
144 sq in |
0.09290304 m² |
1 square yard (sq yd) |
9 sq ft |
0.83612736 m² |
1 square mile (sq mi) |
3,097,600 sq yd |
2.589988110336 km² |
US/Avoirdupois Weight
Unit |
Divisions |
SI Equivalent |
1 grain (gr) |
1⁄7000 lb |
64.798 91 mg |
1 dram (dr) |
27+11⁄32 gr |
1.771 845 195 312 5 g |
1 ounce (oz) |
16 dr |
28.349 523 125 g |
1 pound (lb) |
16 oz |
453.592 37 g |
1 hundredweight (cwt) |
100 lb |
45.359 237 kg |
1 (short) ton |
20 cwt |
907.184 74 kg |
US Cooking Measures
Unit |
Divisions |
SI Equivalent |
1 teaspoon (tsp) |
|
5 mL |
1 tablespoon (tbsp) |
3 tsp |
15 mL |
1 cup |
16 tbsp |
240 mL |
1 stick (for butter) |
4 oz |
115 g |