US teaspoon to US gallon Converter
Type a value — the answer appears instantly. 1 tsp = 0.00130208 gal.
Reviewed by the OmniCalc teamMethod verified 2026-07-01
0.00130208 US gallons
= 0.00492892 L= 4.92892 ml
equals 0.00130208 US gallonsFormula: gal = tsp × 0.0013020833
US teaspoon to US gallon formula
gal = tsp × 0.0013020833
Convert 5 US teaspoons to US gallons
- Start with 5 US teaspoons.
- Multiply by the conversion factor: 5 × 0.00130208 = 0.00651042.
- So 5 tsp = 0.00651042 gal.
US teaspoon to US gallon conversion table
| US teaspoons (tsp) | US gallons (gal) |
|---|---|
| 0.01 tsp | 0.0000130208 gal |
| 0.1 tsp | 0.000130208 gal |
| 0.25 tsp | 0.000325521 gal |
| 0.5 tsp | 0.000651042 gal |
| 1 tsp | 0.00130208 gal |
| 2 tsp | 0.00260417 gal |
| 3 tsp | 0.00390625 gal |
| 4 tsp | 0.00520833 gal |
| 5 tsp | 0.00651042 gal |
| 6 tsp | 0.0078125 gal |
| 7 tsp | 0.00911458 gal |
| 8 tsp | 0.0104167 gal |
| 9 tsp | 0.0117188 gal |
| 10 tsp | 0.0130208 gal |
| 15 tsp | 0.0195313 gal |
| 20 tsp | 0.0260417 gal |
| 25 tsp | 0.0325521 gal |
| 30 tsp | 0.0390625 gal |
| 40 tsp | 0.0520833 gal |
| 50 tsp | 0.0651042 gal |
| 75 tsp | 0.0976563 gal |
| 100 tsp | 0.130208 gal |
| 250 tsp | 0.325521 gal |
| 500 tsp | 0.651042 gal |
| 1,000 tsp | 1.30208 gal |
| 5,000 tsp | 6.51042 gal |
| 10,000 tsp | 13.0208 gal |
Unit definitions
What is a US teaspoon?
The US teaspoon is a customary cooking measure of one sixth of a US fluid ounce, about 4.93 millilitres. Three teaspoons make one tablespoon. It is a staple unit in American recipes.
What is a US gallon?
The US gallon is defined as exactly 231 cubic inches, or 3.785411784 litres. It is the standard unit for fuel, milk, and large liquid quantities in the United States. It is about 20% smaller than the imperial gallon.
Frequently asked questions
How many US gallons are in one US teaspoon?
One US teaspoon equals 0.00130208 US gallons (1 tsp = 0.00130208 gal).
How do I convert US teaspoons to US gallons?
Multiply the value in US teaspoons by 0.00130208. For example, 10 tsp × 0.00130208 = 0.0130208 gal.
Which is bigger — a US teaspoon or a US gallon?
A US gallon is bigger: one US gallon contains 768 US teaspoons.
Is this US teaspoon to US gallon converter free?
Yes — the converter is free, works offline once loaded, and computes instantly in your browser without sending your numbers to a server.
Conversion factors follow international definitions (SI / NIST). Last verified 2026-07-01.