A US teaspoon is one third of a US tablespoon.
Teaspoons to Cubic feet Converter — tsp to ft3
Convert Teaspoon (tsp) to Cubic foot (ft3) using the exact conversion factor (1 teaspoon = 0.0001740632 cubic foot). See the formula, worked examples, conversion table, unit comparison, history, and common uses.
Teaspoons to Cubic feet converter
Converter
Volume Converter
Convert metric, US customary, imperial, cooking, dry, and industrial volume units.
Context values
Some unit families need one extra value for a physically accurate result.
A cubic foot is exactly 0.028316846592 cubic meters.
Result = input x 4.92892159e-6 / 0.02831684659.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Teaspoons to Cubic feet
Teaspoon and Cubic foot appear side by side at fuel pumps and on beverage labels, since the US measures liquids in gallons while most of the world uses liters. Teaspoon is typically associated with united States (cooking and recipe measurement), while Cubic foot is typically associated with united States (construction, HVAC, natural gas billing).
Formula
cubic feet = teaspoons × 0.00017406322338
This factor comes from each unit's defined relationship to the category's base unit: 1 teaspoon equals 0.00000492892159375 base units, and 1 cubic foot equals 0.028316846592 base units, so dividing one by the other gives the direct teaspoon-to-cubic foot factor of 0.00017406322338.
Simple example
1 tsp × 0.0001740632234 = 0.0001740632 ft3
1 teaspoon = 0.0001740632 cubic feet.
Real-world example
10 tsp × 0.0001740632234 = 0.0017406322 ft3
10 teaspoons = 0.0017406322 cubic feet.
Conversion table
| Teaspoon (tsp) | Cubic foot (ft3) |
|---|---|
| 1 tsp | 0.0001740632 ft3 |
| 5 tsp | 0.0008703161 ft3 |
| 10 tsp | 0.0017406322 ft3 |
| 25 tsp | 0.0043515806 ft3 |
| 50 tsp | 0.0087031612 ft3 |
| 100 tsp | 0.0174063223 ft3 |
Reverse conversion: Cubic foot to Teaspoon
0.0001740632 ft3 × 5745.038961 = 0.9999998657 tsp
0.0001740632 cubic feet = 0.9999998657 teaspoons.
teaspoons = cubic feet × 5745.03896104
For a page dedicated to this direction, see Cubic foot to Teaspoon.
Teaspoon vs. Cubic foot
| Aspect | Teaspoon | Cubic foot |
|---|---|---|
| Family | US customary unit | US/imperial customary unit |
| Typical use | US recipe and cooking measurement for small quantities | US natural gas utility billing (often in hundreds or thousands of cubic feet) |
| Where it's used | United States (cooking and recipe measurement) | United States (construction, HVAC, natural gas billing) |
Understanding the Teaspoon
Teaspoon (tsp) measures volume. The US teaspoon is exactly 4.92892159375 milliliters — 1/3 of a US tablespoon and 1/48 of a US cup. It is classified as a US customary unit.
Where it's used: United States (cooking and recipe measurement)
Uses of the Teaspoon today
- US recipe and cooking measurement for small quantities
- Medication dosing instructions in the US
- Baking measurement alongside the tablespoon and cup
Understanding the Cubic foot
Cubic foot (ft3) measures volume. A cubic foot is exactly 0.028316846592 cubic meters, derived from the 1959 international foot. It is classified as a US/imperial customary unit.
Where it's used: United States (construction, HVAC, natural gas billing)
Uses of the Cubic foot today
- US natural gas utility billing (often in hundreds or thousands of cubic feet)
- HVAC airflow and building-volume calculations
- Lumber, concrete, and construction material estimation in the US
History of the Cubic foot
The cubic foot, like the square foot, follows from the standardized foot (exactly 0.3048 m since the 1959 international agreement) rather than having a separate historical definition.
Historical origin. Cubic foot was not the invention of a single named person; it developed through the process described above.
Teaspoon — sources
- NIST Handbook 44, Appendix C — General tables of units including the US teaspoon definition.
Cubic foot — sources
- NIST — International yard and pound (1959) — Basis for the modern foot and its derived volume unit.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic feet are in 1 teaspoon?
1 teaspoon equals 0.0001740632 cubic feet, using the exact defined conversion factor rather than an estimate.
How do I convert teaspoon to cubic foot?
Multiply the teaspoon value by 0.0001740632234. The converter above does this instantly to whatever precision you set.
How do I convert cubic foot back to teaspoon?
Use the reverse factor: 1 cubic foot equals 5,745.038961 teaspoons. You can also use the swap control in the converter above to flip the direction instantly.
What is a teaspoon?
Teaspoon (tsp) measures volume. The US teaspoon is exactly 4.92892159375 milliliters — 1/3 of a US tablespoon and 1/48 of a US cup. It is classified as a US customary unit.
What is a cubic foot?
Cubic foot (ft3) measures volume. A cubic foot is exactly 0.028316846592 cubic meters, derived from the 1959 international foot. It is classified as a US/imperial customary unit.
Is the teaspoon to cubic foot conversion exact?
Yes. A cubic foot is exactly 0.028316846592 cubic meters, derived from the 1959 international foot. That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.
Where is the teaspoon still used today?
United States (cooking and recipe measurement)