Cubic Feet to US Teaspoons (ft³ to tsp)
1 cubic foot equals 5,745.038961 US teaspoons (rounded).
How to convert cubic feet to US teaspoons
To convert cubic feet to US teaspoons, multiply the number of cubic feet by 5,745.038961. The factor is rounded to 10 significant digits. To go the other way, multiply US teaspoons by 0.0001740632234 (rounded).
US teaspoons = cubic feet × 5,745.038961
Example: 10 cubic feet = 57,450.38961 US teaspoons.
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
Cubic Foot (ft³)
Exactly 28.316846592 liters (1,728 cubic inches). Used for refrigerator capacity, gas volume and shipping.
Cubic foot grew from the foot itself, a length unit with ancient origins, cubed into a volume of 1,728 cubic inches. Since the international foot was fixed at exactly 0.3048 meters, it equals exactly 28.316846592 liters. It sits at the center of the Anglo-American cubic system, a cube you could build from twelve-inch rulers, and it is about 7.48 US gallons or 6.23 imperial gallons.
In practice the cubic foot is the language of capacity and flow. Natural gas and household water are often billed per hundred cubic feet, written CCF, while gas reserves are reported in thousands and trillions of cubic feet. Rivers are measured in cubic feet per second, called cusecs, and fans and air compressors are rated in cubic feet per minute. To picture one, imagine a box a foot on each side holding a bit under seven and a half gallon jugs of water.
1 cubic foot = 28.31684659 liters (approximately).
Sources: Wikipedia: Cubic foot; NIST SP 811, Appendix B.8: conversion factors for volume
US Teaspoon (tsp)
One sixth of a US fluid ounce, exactly 4.92892159375 mL. Commonly rounded to 5 mL in recipes.
Teaspoons arrived with tea. Small spoons were common in Europe from at least the 13th century, and the earliest cited mention of a teaspoon is a London Gazette advertisement from 27 December 1686. Britain's Commutation Act of 1784 cut the tea tax from 119 percent to 12.5 percent, tea became cheap, and cups and spoons grew with it. By the 1850s the culinary teaspoon had settled as one third of a tablespoon.
The US teaspoon is one sixth of a US fluid ounce, exactly 4.92892159375 milliliters, though for nutrition labels and medicine it is rounded to 5 mL. Apothecaries once called the small spoon cochleare minus, to distinguish it from the larger cochleare majus. Household spoons are poor measuring tools: one study of 71 kitchen teaspoons found volumes from 2.5 to 7.3 milliliters, which is why dosing instructions point to standard measuring spoons or syringes.
1 US teaspoon = 0.004928921594 liters (approximately).
Sources: Wikipedia: Teaspoon; NIST SP 811, Appendix B.8: conversion factors for volume; 21 CFR 101.9: nutrition labeling household measures
Related conversions
- US teaspoons to cubic feet (reverse)
- Cubic feet to liters
- Cubic feet to milliliters
- Cubic feet to US gallons
- Cubic feet to US cups
- Cubic feet to US fluid ounces
- Cubic feet to cubic meters
- Cubic feet to cubic centimeters
- Cubic feet to US quarts
- Cubic feet to US pints
- Cubic feet to US tablespoons
- Cubic feet to metric cups
- Cubic feet to metric tablespoons
- Liters to US teaspoons
- Milliliters to US teaspoons
- US gallons to US teaspoons
- US cups to US teaspoons
- US fluid ounces to US teaspoons
- Cubic meters to US teaspoons
- Cubic centimeters to US teaspoons
- US quarts to US teaspoons
- US pints to US teaspoons
- US tablespoons to US teaspoons
- Metric cups to US teaspoons
- Metric tablespoons to US teaspoons
See all volume units.