How many ml is 1.5 cups?

1.5 cups is 354.88 ml using the US customary cup, 360.00 ml using the US legal cup (nutrition labels), 375.00 ml using a metric cup (Australia, Canada, New Zealand) and 426.20 ml using an old imperial cup. For most recipes, use the US customary figure of 354.88 ml.

Is 1.5 cups US or metric?

It depends on where the recipe is from. A US recipe means the US customary cup, so 1.5 cups is 354.88 ml. An Australian, Canadian or New Zealand recipe means the 250 ml metric cup, making 1.5 cups 375.00 ml — a difference of 20.12 ml.

How many fluid ounces is 1.5 cups?

1.5 US cups is 12 US fluid ounces, since one US cup is 8 fluid ounces. That is also 24 tablespoons and 72 teaspoons, or 354.88 ml.

How much is 1.5 cups of flour vs water?

Both are 354.88 ml by volume (US cup), but they weigh very differently. 1.5 cups of water weighs about 354.88 g, while 1.5 cups of all-purpose flour weighs only around 188 g. That is why baking recipes that give grams are more accurate than cups.

How do you convert 1.5 cups to ml?

Multiply by the cup size. US customary: 1.5 × 236.5882 = 354.88 ml. Metric: 1.5 × 250 = 375.00 ml. US legal (labels): 1.5 × 240 = 360.00 ml.

Does 1.5 cups of water weigh 354.88 grams?

Roughly, yes. Water is about 1 gram per millilitre, so 1.5 US cups of water (354.88 ml) weighs close to 354.88 g. This only holds for water — 1.5 cups of flour is the same volume but weighs far less (around 188 g), so weigh dry ingredients when accuracy matters.

1.5 Cups in ml

1.5 cups in ml is 354.88 ml using the US customary cup — the standard in American recipes — or 375.00 ml using the 250 ml metric cup used in Australia, Canada and New Zealand. 1.5 cups is the same as 1½ cup (1 1/2 cup), which is 12 US fluid ounces. One and a half cups is 12 US fluid ounces — a commo…

CUP CONVERTER

Cups

Cup type

Convert to

1.5 US customary cups =

354.88

Milliliter

LIVE DIAGRAM

US CUSTOMARY

354.88

ml · recipe standard · 8 fl oz

US LEGAL

360.00

ml · nutrition labels

METRIC

375.00

ml · AU · NZ · CA · UK

IMPERIAL

426.20

ml · old UK · 10 imp fl oz

The same 1.5 cups ranges from 354.88 ml to 426.20 ml depending on which cup is meant — a spread of 71.31 ml.

VISUAL FILL (US CUP)

35% of 1 litre

4 US cups ≈ 1 litre (946 ml)

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1.5 CUPS IN ML

1.5 CUPS (1½) → MILLILITERS, BY CUP DEFINITION

US customary cup (recipe standard · 8 fl oz)	354.88 ml	× 236.59
US legal cup (nutrition labels)	360.00 ml	× 240.00
Metric cup (AU · NZ · CA · UK)	375.00 ml	× 250.00
Imperial cup (old UK · 10 imp fl oz)	426.20 ml	× 284.13

One and a half cups is 12 US fluid ounces — a common milk quantity in batters. US recipes use the US customary cup (236.59 ml); Australian, Canadian and New Zealand recipes use the 250 ml metric cup; older British recipes may mean the 284 ml imperial cup.

1.5 US CUPS IN OTHER UNITS

MILLILITERS (US)

354.88 ml

US FLUID OUNCES

12 fl oz

US TABLESPOONS

24 tbsp

US TEASPOONS

72 tsp

LITRES (US)

0.355 L

HOW TO USE

1
Enter the number of cups — this page starts with 1.5.
2
Pick the cup definition your recipe uses: US customary, US legal, metric, or imperial.
3
Choose a target unit — millilitres, litres, tablespoons, teaspoons, fluid ounces or pints — and read the result instantly.

GOOD TO KNOW

One and a half US cups is 354.88 ml — almost exactly a 355 ml soda can. In 250 ml metric cups the same 1½ cups is 375 ml, about 20 ml more.

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Last updated: July 28, 2026 · Cup definitions: US customary 236.5882365 ml, US legal 240 ml, metric 250 ml, imperial 284.130625 ml · Verified by the EagleCalculator team · Eagle-eyed accuracy for every calculation.

1.5 Cups in ml

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1.5 CUPS IN ML

1.5 US CUPS IN OTHER UNITS

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