Conversion Chart: U.S. to Metric

In the Czech Republic and across most European countries, cooking ingredients are weighed on a kitchen scale. We use metric units, most often grams for mass and milliliters for basic liquids.

My recipes on this blog are based on the originals written in metric units. To adapt to the U.S. measuring system, I use the following conversions according to FDA guidance:

• 1 US legal cup = 240 ml
• 1 Tbsp = 15 ml
• 1 tsp = 5 ml
• 1 fluid ounce = 30 ml
• 1 oz = 28 g
• 1 lb (pound) = 454 g

Below you will find the most commonly used ingredients converted from U.S. units to the metric system. I weighed each ingredient on my kitchen scale to make sure the conversions listed in the recipes are correct.

Flour

All-purpose flour; in Czech: "hladká mouka." When measured, please prefer the Spoon & level method. Do not scoop the flour, especially if baking.

• 1 cup = 130 g
• 1/2 cup = 65 g
• 1/3 cup = 44 g
• 1/4 cup = 33 g

Sugar white – granulated

In Czech: "bílý cukr" or "cukr krupice"

• 1 cup = 200 g
• 1/2 cup = 100 g
• 1/3 cup = 67 g
• 1/4 cup = 50 g

Sugar powdered

In Czech: "práškový cukr" or "moučkový cukr"

• 1 cup = 120 g
• 1/2 cup = 60 g
• 1/3 cup = 40 g
• 1/4 cup = 30 g

Oil vegetable

In Czech: "rostlinný olej"

• 1 cup = 220 g = 240 ml
• 1/2 cup = 110 g = 120 ml
• 1/4 cup = 55 g = 60 ml

Butter

In Czech: "máslo"

• 1 stick = 1/2 cup = 8 Tbsp = 4 oz = 113 g
• 2 sticks = 1 cup = 16 Tbsp = 8 oz = 226 g

Liquids

For example: water, milk, broth

• 1 cup = 240 ml = 8 fl oz
• 1/2 cup = 120 ml = 4 fl oz
• 1/4 cup = 60 ml = 2 fl oz

Sour cream

In Czech: "zakysaná smetana"

• 1 cup = 240 g
• 1/2 cup = 120 g
• 1/3 cup = 80 g
• 1/4 cup = 60 g

Breadcrumbs

In Czech: "strouhanka"

• 1 cup = 120 g
• 1/2 cup = 60 g
• 1/3 cup = 40 g
• 1/4 cup = 30 g

Rice dry

In Czech: "rýže"

• 1 cup = 190 g
• 1/2 cup = 95 g
• 1/3 cup = 63 g
• 1/4 cup = 48 g

Poppy seed raw

In Czech: "mák"

• 1 cup = 145 g
• 1/2 cup = 72,5 g
• 1/3 cup = 48 g
• 1/4 cup = 36 g

Poppy seed ground

In Czech: "mletý mák"

• 1 cup = 90 g
• 1/2 cup = 45 g
• 1/3 cup = 30 g
• 1/4 cup = 23 g

Jam

Marmelade, powidl and other preserves. In Czech: "marmeláda" or "džem"

• 1 cup = 330 g
• 1/2 cup = 165 g
• 1/3 cup = 110 g
• 1/4 cup = 82,5 g

Buttermilk

In Czech: "kefír" or "acidofilní mléko"

• 1 cup = 225 g = 240 ml
• 1/2 cup = 112,5 g = 120 ml

Mayonnaise

In Czech: "majonéza" or "majolka"

• 1 cup = 220 g
• 1/2 cup = 110 g
• 1/3 cup = 73 g
• 1/4 cup = 55 g

Dark cocoa powder

In Czech "kakao"

• 1 Tbsp = 7,5 g
• 1 tsp = 2,5 g

Greek yogurt

In Czech "řecký jogurt", fat content around 10 %

• 1 cup = 280 g
• 1/2 cup = 140 g
• 1/3 cup = 93 g
• 1/4 cup = 70 g

Baking powder

In Czech "kypřicí prášek"

• 1 tsp = 4 g
• 1 Tbps = 13 g

Dried lentils

In Czech "čočka"

• 1 cup = 200 g
• 1/2 cup = 100 g
• 1/3 cup = 67 g
• 1/4 cup = 50 g