US Cups to Cubic Yards (cup to yd³)
1 US cup equals 0.0003094457305 cubic yards (rounded).
How to convert US cups to cubic yards
To convert US cups to cubic yards, multiply the number of US cups by 0.0003094457305. The factor is rounded to 10 significant digits. To go the other way, multiply cubic yards by 3,231.584416 (rounded).
cubic yards = US cups × 0.0003094457305
Example: 10 US cups = 0.003094457305 cubic yards.
Pints, quarts, gallons and fluid ounces differ between the US and the UK. Units are labeled 'US' or 'imperial' to avoid confusion.
About these units
US Cup (cup)
One sixteenth of a US gallon, 236.588 mL (8 US fluid ounces). The standard US recipe cup.
Cups began as household drinking vessels, not scientific units, which is why they remain the messiest measures in the kitchen. The US customary cup was defined by slicing up the gallon: half a pint, or eight US fluid ounces, about 236.6 milliliters. Unlike the larger units, nobody ever fixed it to a physical vessel, so it exists only as a fraction of the gallon.
The customary cup is not the only American cup. For nutrition labels, US regulation defines a cup as exactly 240 milliliters, a rounder figure that sits slightly above the customary size. Packaged foods therefore list a serving in the legal cup while a measuring cup from the hardware store follows the customary definition. The gap is 3.4 milliliters, which hardly matters for soup but can matter in baking. Cup measures also hide the weight of dry ingredients, since a cup of sifted flour and a cup of packed flour differ substantially, which is why much of the world prefers grams.
1 US cup = 0.2365882365 liters (exactly).
Sources: Wikipedia: Cup (unit); NIST SP 811, Appendix B.8: conversion factors for volume; 21 CFR 101.9: nutrition labeling household measures
Cubic Yard (yd³)
27 cubic feet or 764.555 liters. Used for soil, gravel and concrete in the US.
Cubic yard is a cube three feet on each side, which makes it exactly 27 cubic feet or 46,656 cubic inches. In metric terms it is about 0.7646 cubic meters, or 764.55 liters. The unit follows the yard in the United States and Canada, and British railways once rated ballast wagons by it, with one Great Western Railway wagon holding 8 cubic yards.
A cubic yard is easier to picture than the number suggests. It holds about 202 US gallons, or nearly five oil barrels. That is a scale where bulk materials such as soil, gravel, mulch and concrete are naturally counted, so a patio slab or garden bed needs a handful of them. A handy rule of thumb follows from the arithmetic: one cubic yard spread one inch deep covers 324 square feet.
1 cubic yard = 764.554858 liters (approximately).
Sources: Wikipedia: Cubic yard; NIST SP 811, Appendix B.8: conversion factors for volume
Related conversions
- Cubic yards to US cups (reverse)
- US cups to liters
- US cups to milliliters
- US cups to US gallons
- US cups to US fluid ounces
- US cups to cubic meters
- US cups to cubic centimeters
- US cups to US quarts
- US cups to US pints
- US cups to US tablespoons
- US cups to US teaspoons
- US cups to metric cups
- US cups to metric tablespoons
- Liters to cubic yards
- Milliliters to cubic yards
- US gallons to cubic yards
- US fluid ounces to cubic yards
- Cubic meters to cubic yards
- Cubic centimeters to cubic yards
- US quarts to cubic yards
- US pints to cubic yards
- US tablespoons to cubic yards
- US teaspoons to cubic yards
- Metric cups to cubic yards
- Metric tablespoons to cubic yards
See all volume units.