Teaspoons to US gallons

US gallons = teaspoons × 0.00130208

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How to convert teaspoons to US gallons

One teaspoon is 0.00130208 US gallons, so multiply the number of teaspoons by 0.00130208. For example, 20 teaspoons is 20 × 0.00130208 = 0.02604167 US gallons. To go back, divide by the same number, or multiply by 768.

Quick estimate

Multiplying by about 0.001 gets within 23.2% of the exact answer, which is enough to check that a result makes sense.

Where it comes up

Volume conversions come up in recipes, fuel economy, drink and bottle sizes, garden and pool water, and engine sizes.

teaspoons	US gallons
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	0.01041667 gal
9 tsp	0.01171875 gal
10 tsp	0.01302083 gal
11 tsp	0.01432292 gal
12 tsp	0.015625 gal
13 tsp	0.01692708 gal
14 tsp	0.01822917 gal
15 tsp	0.01953125 gal
16 tsp	0.02083333 gal
17 tsp	0.02213542 gal
18 tsp	0.0234375 gal
19 tsp	0.02473958 gal
20 tsp	0.02604167 gal
25 tsp	0.03255208 gal
30 tsp	0.0390625 gal
40 tsp	0.05208333 gal
50 tsp	0.06510417 gal
60 tsp	0.078125 gal
70 tsp	0.09114583 gal
75 tsp	0.09765625 gal
80 tsp	0.10416667 gal
90 tsp	0.1171875 gal
100 tsp	0.13020833 gal
120 tsp	0.15625 gal
150 tsp	0.1953125 gal
200 tsp	0.26041667 gal
250 tsp	0.32552083 gal
300 tsp	0.390625 gal
400 tsp	0.52083333 gal
500 tsp	0.65104167 gal
750 tsp	0.9765625 gal
1,000 tsp	1.302083 gal
1,500 tsp	1.953125 gal
2,000 tsp	2.604167 gal
5,000 tsp	6.510417 gal
10,000 tsp	13.020833 gal

Questions

How many US gallons are in a teaspoon?

0.00130208 US gallons.

How do I convert teaspoons to US gallons in a spreadsheet?

Put the value in A1 and type =A1*0.00130208, then fill the formula down the column.

Are the values in the table exact?

They are calculated from the exact definitions of the units and rounded only for display. Open any row for the full working.