🧊 cup to ft³ — US Cup to Cubic Foot Converter

Convert volume units — liters, gallons, cups, milliliters, cubic meters, barrels and more.

1 unit =
From
To
Formula 1 cup = 0.0083550401 ft³
UnitNameValue
0.001 cup8.35504e-06 ft³
0.01 cup8.35504e-05 ft³
0.1 cup0.000835504 ft³
1 cup0.00835504 ft³
5 cup0.0417752 ft³
10 cup0.0835504 ft³
50 cup0.417752 ft³
100 cup0.835504 ft³
1000 cup8.35504 ft³
Last updated: March 2026

US Cup to Cubic Foot Conversion Table

Common us cup values converted to cubic foot — factor: 1 cup = 0.008355 ft³

US Cup (cup)Cubic Foot (ft³)Context
0.0625 cup0.0005222 ft³Tablespoon
0.125 cup0.001044 ft³Eighth cup
0.25 cup0.002089 ft³Quarter cup
0.333 cup0.002782 ft³Third cup
0.5 cup0.004178 ft³Half cup
1 cup0.008355 ft³One cup
2 cup0.01671 ft³One pint
4 cup0.03342 ft³One quart
8 cup0.06684 ft³Half gallon
16 cup0.1337 ft³One gallon
32 cup0.2674 ft³2 gallons
64 cup0.5347 ft³4 gallons
128 cup1.069 ft³8 gallons
256 cup2.139 ft³Large drum
512 cup4.278 ft³Large drum

About US Cup to Cubic Foot Conversion

Converting us cup to cubic foot comes up frequently in cooking, chemistry, medicine, and engineering. A recipe written in metric units may need to be adapted for a kitchen using cubic foot, or a laboratory protocol may specify volumes in us cup that need to be measured with equipment calibrated in cubic foot.

In everyday use, knowing that 5 cup = 0.04178 ft³ and 10 cup = 0.08355 ft³ covers most common situations. For bulk calculations, 100 cup = 0.8355 ft³ is a useful anchor. The reverse conversion — cubic foot back to us cup — uses the factor 119.7, so 1 ft³ = 119.7 cup.

All conversions use the internationally recognized factor of exactly 1 cup = 0.008355 ft³. Calculations are performed in IEEE 754 double-precision floating point, giving accuracy to at least 8 significant figures — more than sufficient for any practical application.

Quick Answer

Formula: Cubic Foot = US Cup × 0.0083550401

Multiply any us cup value by 0.0083550401 to get cubic foot. One us cup equals 0.0083550401 ft³.

Reverse: US Cup = Cubic Foot × 119.68823

Worked Examples

One cubic foot
119.7 cup × 0.0083550401 = 1.0000983 ft³
119.7 cups = 1 ft³.
One US cup
1 cup × 0.0083550401 = 0.0083550401 ft³
1 cup = 0.008355 ft³.
One US gallon
16 cup × 0.0083550401 = 0.13368064 ft³
16 cups = 0.1337 ft³ = 1 gallon.
One US quart
4 cup × 0.0083550401 = 0.03342016 ft³
4 cups = 0.03342 ft³.

Mental Math Tricks

Exact factor

1 cup = 0.0083550401 ft³. Memorize this for instant mental estimates.

Rounded shortcut

Use 0.0084 as a quick mental factor. Multiply your US cups value by this to estimate cubic feet.

Reverse check

To verify: multiply your result by 119.68823 to recover the original cup value.

Who Uses This Conversion?

Home Baker

Follows American recipes using cups for flour, sugar, milk, and butter.

Recipe Developer

Tests and standardizes recipes in cup measurements before international publication.

Registered Dietitian

Uses cup portions as standardized serving-size references for dietary counseling.

Culinary Teacher

Teaches beginner cooks using cups as intuitive, equipment-free measuring tools.

Food Manufacturer

Converts cup-based recipes to liter or kilogram quantities for industrial production.

Expat Cook

Converts US cup measurements to metric mL when cooking American recipes abroad.

Frequently Asked Questions

About US Cup and Cubic Foot

US Cup (cup)

The US customary cup is defined as exactly 8 US fluid ounces, or 236.588 mL. It was standardized by Fannie Farmer in her 1896 cookbook The Boston Cooking-School Cook Book.

The cup is the backbone of US baking: nearly every American recipe uses cup measurements for flour, sugar, butter, and liquids. Standard sets include 1 cup, ½ cup, ⅓ cup, and ¼ cup.

Interesting fact: Australia uses a metric cup of 250 mL, slightly larger than the US cup, which can cause recipe confusion in international cooking.

Cubic Foot (ft³)

The cubic foot is the Imperial and US customary volume unit equal to the space occupied by a cube with one-foot sides. It was formally standardized in the UK by the Weights and Measures Act of 1824.

Cubic feet appear in HVAC (airflow in CFM), natural gas billing in the US, and real-estate appraisals. One cubic foot equals exactly 1,728 cubic inches or approximately 28.317 liters.

Interesting fact: US natural gas meters read in CCF (hundreds of cubic feet) or MCF (thousands), making the cubic foot the invisible unit behind most American gas utility bills.