These tables are your kitchen translator between US customary and metric measurements. Start with the Volume table for everyday measuring of dry and wet ingredients using cups, tablespoons, and teaspoons. When working with thicker, denser liquids like honey or molasses, switch to the Liquid by volume table since density affects true measurement. Use the Weight table when a recipe calls for ounces or pounds, particularly for meats, cheeses, and produce. The Length table helps when sizing dough, cuts, or bakeware. Finally, always cross-reference the Oven temperature table when using a European or international recipe to ensure accurate baking results.

Volume

US measurement	fluid ounces	metric equivalent
⅛ teaspoon	0.02 fl oz	0.6 ml
¼ teaspoon	0.04 fl oz	1.25 ml
½ teaspoon	0.08 fl oz	2.5 ml
1 teaspoon	0.17 fl oz	5 ml
1 tablespoon (3 tsp)	0.5 fl oz	15 ml
2 tablespoons	1 fl oz	30 ml
¼ cup	2 fl oz	60 ml
⅓ cup	2.7 fl oz	80 ml
½ cup	4 fl oz	120 ml
⅔ cup	5.3 fl oz	160 ml
¾ cup	6 fl oz	180 ml
1 cup	8 fl oz	240 ml
1¼ cups	10 fl oz	300 ml
1½ cups	12 fl oz	360 ml
1¾ cups	14 fl oz	420 ml
2 cups (1 pint)	16 fl oz	480 ml
3 cups	24 fl oz	720 ml
4 cups (1 quart)	32 fl oz	960 ml (~1 liter)
8 cups (½ gallon)	64 fl oz	1.9 liters
16 cups (1 gallon)	128 fl oz	3.8 liters

Note: These are fluid ounces (fl oz), which measure volume, not weight. Fluid ounces and weight ounces are different — 1 fl oz of water happens to weigh approximately 1 oz, but that changes with denser ingredients like honey or oil.

Liquid ingredients by volume

Liquid	1 cup	¾ cup	½ cup	¼ cup	1 tbsp	1 tsp
Water	240 ml	180 ml	120 ml	60 ml	15 ml	5 ml
Milk (whole)	240 ml	180 ml	120 ml	60 ml	15 ml	5 ml
Heavy Cream	240 ml	180 ml	120 ml	60 ml	15 ml	5 ml
Buttermilk	240 ml	180 ml	120 ml	60 ml	15 ml	5 ml
Vegetable Oil	240 ml	180 ml	120 ml	60 ml	15 ml	5 ml
Olive Oil	240 ml	180 ml	120 ml	60 ml	15 ml	5 ml
Honey	340 ml	255 ml	170 ml	85 ml	21 ml	7 ml
Maple Syrup	320 ml	240 ml	160 ml	80 ml	20 ml	7 ml
Molasses	330 ml	248 ml	165 ml	83 ml	21 ml	7 ml
Corn Syrup	330 ml	248 ml	165 ml	83 ml	21 ml	7 ml
Soy Sauce	240 ml	180 ml	120 ml	60 ml	15 ml	5 ml
Vinegar	240 ml	180 ml	120 ml	60 ml	15 ml	5 ml
Lemon Juice	240 ml	180 ml	120 ml	60 ml	15 ml	5 ml
Coconut Oil (melted)	240 ml	180 ml	120 ml	60 ml	15 ml	5 ml
Butter (melted)	240 ml	180 ml	120 ml	60 ml	15 ml	5 ml

Note: Thicker liquids like honey, syrup, and molasses have a higher density, so their metric volume per cup is greater than water-based liquids.

Weight (common cooking ingredients)

US measurement	metric equivalent
1 oz	28 g
2 oz	57 g
4 oz (¼ lb)	113 g
8 oz (½ lb)	227 g
12 oz (¾ lb)	340 g
16 oz (1 lb)	454 g

Oven temperature

Fahrenheit	Celsius	gas mark
275°F	135°C	1
300°F	150°C	2
325°F	165°C	3
350°F	175°C	4
375°F	190°C	5
400°F	205°C	6
425°F	220°C	7
450°F	230°C	8
475°F	245°C	9

Pro Tip: For baking, weight measurements (grams) are always more accurate than volume (cups/ml), especially for flour, sugar, and butter.

Length

US measurement	Metric equivalent
⅛ inch	3 mm
¼ inch	6 mm
½ inch	1.3 cm
¾ inch	2 cm
1 inch	2.5 cm
2 inches	5 cm
3 inches	7.5 cm
4 inches	10 cm
5 inches	12.5 cm
6 inches	15 cm
7 inches	18 cm
8 inches	20 cm
9 inches	23 cm
10 inches	25 cm
11 inches	28 cm
12 inches (1 foot)	30 cm
18 inches	46 cm
24 inches (2 feet)	61 cm

Tip: Length conversions are especially useful for pan sizes – a standard 9×13 inch baking pan is approximately 23×33 cm.