Metric–Nonmetric Equivalents

Liquid

30 milliliters (mL)

1 fluid ounce (oz)

250 mL

8 + fluid oz

500 mL

1+ pint

1000 mL (1 liter)

1+ quart

Weight

65 mg

1 grain (gr)

28.35 g

1 oz

1 kg

2.2 pounds (lb)

Linear

1 millimeter (mm)

0.04 inch (in)

1 centimeter (cm)

0.4 in

2.54 cm

1 in

1 meter (m)

39.37 in

Household

4 mL

1 teaspoon (tsp)

5 mL

1 teaspoon, medical

8 mL

1 dessert spoon

15 mL

1 tablespoon (tbsp—½ fluid oz)

240 mL

1 cup (8 fluid oz)