Gallons To Teaspoons Conversion (gal To Tsp) - Inch Calculator

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• Gallons to Teaspoons Converter
• How to Convert Gallons to Teaspoons
• How Many Teaspoons Are in a Gallon?
• What Is a Gallon?
• What Is a Teaspoon?
• Gallon to Teaspoon Conversion Table
• References

Person Icon By Joe Sexton

Joe is the creator of Inch Calculator and has over 20 years of experience in engineering and construction. He holds several degrees and certifications.

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Sexton, J. (n.d.). Gallons to Teaspoons Converter. Inch Calculator. Retrieved February 20, 2026, from https://www.inchcalculator.com/convert/gallon-to-teaspoon/

How to Convert Gallons to Teaspoons

To convert a measurement in gallons to a measurement in teaspoons, multiply the volume by the following conversion ratio: 768 teaspoons/gallon.

Since one gallon is equal to 768 teaspoons, you can use this simple formula to convert:

teaspoons = gallons × 768

The volume in teaspoons is equal to the volume in gallons multiplied by 768.

For example, here's how to convert 5 gallons to teaspoons using the formula above.

teaspoons = (5 gal × 768) = 3,840 tsp

How Many Teaspoons Are in a Gallon?

There are 768 teaspoons in a gallon, which is why we use this value in the formula above.

1 gal = 768 tsp

Gallons and teaspoons are both units used to measure volume. Keep reading to learn more about each unit of measure.

What Is a Gallon?

The US liquid gallon is a unit of fluid volume equal to four quarts, eight pints, or sixteen cups.[1] The US liquid gallon should not be confused with the US dry gallon or the imperial gallon, which are different units of measure.

The gallon is a US customary unit of volume. Gallons can be abbreviated as gal; for example, 1 gallon can be written as 1 gal.

Learn more about gallons.

What Is a Teaspoon?

The teaspoon is a unit of volume equal to 1/3 of a tablespoon or 1/6 of a fluid ounce.[2] One teaspoon is equal to approximately 4.929 milliliters, but in nutrition labeling, one teaspoon is equal to exactly 5 milliliters.[3]

The teaspoon is a US customary unit of volume. Teaspoons can be abbreviated as tsp, and are also sometimes abbreviated as t, ts, or tspn. For example, 1 teaspoon can be written as 1 tsp, 1 t, 1 ts, or 1 tspn.

Learn more about teaspoons.

Gallon to Teaspoon Conversion Table

Table showing various gallon measurements converted to teaspoons.

Gallons	Teaspoons
1 gal	768 tsp
2 gal	1,536 tsp
3 gal	2,304 tsp
4 gal	3,072 tsp
5 gal	3,840 tsp
6 gal	4,608 tsp
7 gal	5,376 tsp
8 gal	6,144 tsp
9 gal	6,912 tsp
10 gal	7,680 tsp
11 gal	8,448 tsp
12 gal	9,216 tsp
13 gal	9,984 tsp
14 gal	10,752 tsp
15 gal	11,520 tsp
16 gal	12,288 tsp
17 gal	13,056 tsp
18 gal	13,824 tsp
19 gal	14,592 tsp
20 gal	15,360 tsp
21 gal	16,128 tsp
22 gal	16,896 tsp
23 gal	17,664 tsp
24 gal	18,432 tsp
25 gal	19,200 tsp
26 gal	19,968 tsp
27 gal	20,736 tsp
28 gal	21,504 tsp
29 gal	22,272 tsp
30 gal	23,040 tsp
31 gal	23,808 tsp
32 gal	24,576 tsp
33 gal	25,344 tsp
34 gal	26,112 tsp
35 gal	26,880 tsp
36 gal	27,648 tsp
37 gal	28,416 tsp
38 gal	29,184 tsp
39 gal	29,952 tsp
40 gal	30,720 tsp

References

1. National Institute of Standards and Technology, Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices, Handbook 44 - 2019 Edition, https://nvlpubs.nist.gov/nistpubs/hb/2019/NIST.HB.44-2019.pdf
2. Florida Department of Agriculture and Consumer Services, Cooking Conversion Guide, https://www.fdacs.gov/content/download/17165/file/P-01775.pdf
3. U.S. Food & Drug Administration, Guidance for Industry: Guidelines for Determining Metric Equivalents of Household Measures, https://www.fda.gov/regulatory-information/search-fda-guidance-documents/guidance-industry-guidelines-determining-metric-equivalents-household-measures

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