Convert Cup to Cubic Foot (cup → ft³)

Converting cups to cubic feet is straightforward: multiply by the conversion factor. Follow these three steps to do it by hand or in your head.

1. 1
   Take your value in cups

   Start with the number of cups (cup) you want to convert.
2. 2
   Multiply by 0.008476

   The conversion factor from cup to ft³ is 0.008476. Multiply your value by this number.
3. 3
   Read the result in cubic feet

   The result is your value in cubic feet (ft³).

Multiply the value in cups by 0.008476. For the reverse direction, multiply by 117.98686.

• ✓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.

• ✗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.

What is the Cup?

The US cup equals exactly 240 milliliters (a definition standardized for nutrition labeling; the legal volume for cooking is 236.588 mL, derived from 8 US fluid ounces). The cup is the cornerstone of American baking and home cooking, with virtually every US recipe using volume measurements rather than the weight measurements common in European cooking. Standard measuring-cup sets include 1, ½, ⅓, and ¼ cup sizes. The metric cup (used in Australia, New Zealand, and increasingly in international recipes) is exactly 250 mL — slightly larger than the US cup. The cup relates to the gallon (16 cups = 1 gal), the pint (2 cups = 1 pt), the fluid ounce (8 fl oz = 1 cup), the tablespoon (16 tbsp = 1 cup), and the milliliter (1 cup ≈ 237–240 mL). American baking-by-volume is sometimes criticized internationally for its variability compared to gram-based measurements.

• US cooking and baking recipes
• Cereal and beverage serving sizes in US nutrition labels
• Volume estimation when no scale is available

What is the Cubic Foot?

The cubic foot equals approximately 28.317 liters (or exactly 1,728 cubic inches) and is the American standard volume unit for HVAC capacity, natural-gas billing, refrigerator interior volume, and bulk material like concrete or mulch. American gas utilities measure delivered gas in 'CCF' (hundred cubic feet) or 'MCF' (thousand cubic feet), even when the customer thinks in terms of monthly bills. Refrigerators are advertised by their interior cubic-foot capacity (typical home unit: 18–25 ft³). Air-conditioning systems are rated in CFM (cubic feet per minute) airflow. Concrete is sometimes priced by the cubic yard (27 ft³), and mulch and topsoil are often sold by cubic foot bags. The cubic foot relates to the cubic yard (27 ft³ = 1 yd³), the cubic inch (1,728 in³ = 1 ft³), the cubic meter (1 ft³ ≈ 0.0283 m³), and the gallon (1 ft³ ≈ 7.481 US gal).

• US air-conditioning and ventilation flow (CFM)
• US natural gas consumption
• Refrigerator and freezer capacity in the US