Cooking Weights & Measures Converter

Convert between US cups and UK grams — choose your scenario below

What do you need to do?

Ingredient

Example: A US recipe says "2 cups of plain flour" — enter 2 below and select "US cups" to get the grams equivalent.

Amount (US measure)

US unit

UK equivalent

Also equals:

Oven Temperature Converter

Fahrenheit ↔ Celsius ↔ Gas Mark ↔ Fan oven — instantly

Common example: US recipe says 350°F — that’s 180°C / Gas Mark 4 / 160°C fan. Enter any temperature below.

Temperature

This is in

Fahrenheit

°F (US)

Celsius

°C & °C fan: 0

Gas Mark

—

British gas

A US cup measures volume (240ml), not weight. Every ingredient converts differently because they have different densities.

Ingredient	1 US Cup	½ Cup	¼ Cup	1 Tbsp
Plain flour	125g	63g	31g	8g
Granulated / caster sugar	200g	100g	50g	13g
Icing sugar	120g	60g	30g	8g
Brown sugar (packed)	220g	110g	55g	14g
Butter	227g	114g	57g	14g
Honey	340g	170g	85g	21g
Cocoa powder	85g	43g	21g	5g
Rolled oats	90g	45g	23g	6g
Rice (uncooked)	195g	98g	49g	12g
Milk	245g / 240ml	123g	61g	15ml
Water	240g / 240ml	120g	60g	15ml

Description	°F (US)	°C (UK)	Fan °C	Gas Mark
Very low / slow	250°F	120°C	100°C	Gas ½
Low	300°F	150°C	130°C	Gas 2
Moderate — most cakes	350°F	180°C	160°C	Gas 4
Moderately hot — bread	375°F	190°C	170°C	Gas 5
Hot — roasting	400°F	200°C	180°C	Gas 6
Very hot	450°F	230°C	210°C	Gas 8

How many grams is 1 cup of flour?: 1 US cup of plain (all-purpose) flour = approximately 125 grams. Always spoon flour into the cup and level off — scooping compacts it and adds up to 20% more weight.
What is 350°F in Celsius?: 350°F = 180°C = Gas Mark 4. For a fan oven reduce to 160°C. This is the most common American baking temperature for cakes and cookies.
How many tablespoons in a US cup?: 16 tablespoons = 1 US cup = 240ml. Half a cup = 8 tablespoons. Quarter cup = 4 tablespoons. 1 tablespoon = 3 teaspoons = 15ml.
Is a US cup the same as a UK cup?: No. A US cup is 240ml. An old UK imperial cup is 284ml. An Australian metric cup is 250ml. Most modern UK and US recipes use the US cup (240ml) as standard. This converter uses US cups.