Convert cups to cubic yards

1 cup=0.0003139yd³

Use the converter below to change any cups value into cubic yards instantly — with formula, conversion table, and real-world examples.

You have

Equals

0.00031391

Conversion formula

Forward

cubic yards = cups × 0.0003139

Reverse

cups = cubic yards × 3,185.65

Example: 10 cup × 0.0003139 = 0.003139 yd³.

About both units

From

Cup

cup

The US cup equals 240 millilitres in common usage (legally defined as 236.588 ml). The metric cup (Australia, NZ) is 250 ml; the UK "cup" is 284 ml but rarely used in recipes. Cooking recipes from the US dominate online, so 240 ml is the safe default for "cup".

Real-world: 1 cup of water = 240 g = 240 ml. 1 cup of all-purpose flour weighs about 125 g. A Starbucks Tall is 12 fl oz = 1.5 cups.

Read full cup reference →

Cubic Yard

yd³

The cubic yard equals 0.7646 cubic metres or 27 cubic feet. It is the standard US unit for concrete, gravel, mulch and soil ordering. A typical residential concrete truck delivers 10 cubic yards. US freight shipping also uses cubic yards for loose-material capacity.

Real-world: A residential US concrete pour might need 3–8 cubic yards. US garbage dumpsters rated in cubic yards.

Read full cubic yard reference →

Cup to Cubic Yard conversion table

Common cups to cubic yards values for quick reference.

Cup (cup)	Cubic Yard (yd³)
1 cup	0.0003139 yd³
2 cup	0.0006278 yd³
5 cup	0.00157 yd³
10 cup	0.003139 yd³
20 cup	0.006278 yd³
50 cup	0.0157 yd³
100 cup	0.03139 yd³
200 cup	0.06278 yd³
500 cup	0.157 yd³
1,000 cup	0.3139 yd³

Tips & common mistakes

Quick tips

US cup = 240 ml common; 236.6 ml legal; UK cup = 284 ml; metric cup (AU/NZ) = 250 ml.
Weights (grams) are more reliable than cups — a cup of flour can vary 30% depending on how packed.
For baking, always use the recipe author's country convention.

Avoid these

Using a UK 284 ml cup for a US recipe calling for 240 ml — 18% overshoot.
Treating all dry ingredients as 1 cup = 240 g — only true for water.
Using a coffee mug as a "cup" — mugs vary 200–400 ml.

Frequently asked questions

How many cubic yards in a cup?

One cup equals 0.0003139 cubic yards.

How do I convert cups to cubic yards?

Multiply the cup value by 0.0003139 to get the equivalent in cubic yards.

What is 100 cups in cubic yards?

100 cups equals 0.03139 cubic yards.

Is a cup bigger than a cubic yard?

No. 1 cup equals 0.0003139 cubic yards, so one cup is smaller.

How to convert cups to cubic yards without a calculator?

Multiply by 0 for a quick estimate; use a calculator for precise results.

Related volume conversions

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Convert cups to cubic yards

🧮 Conversion formula