ConvBolt — Unit ConverterTeaspoons to US gallons Converter
Converting teaspoons to US gallons is a multiplication by a fixed factor: 1 tsp = 0.001302083 gal. The table below covers the values people look up most often, and the formula section shows exactly where that factor comes from.
Because one teaspoon works out to 0.001302083 gal, the us gallon is the far smaller unit of the two: a figure given in us gallon always carries a smaller number than the same measurement in teaspoon. A chart drawn in tsp can hide that, so check which label the axis uses before you compare two readings.
Kitchen and workshop measuring are where this pair comes up: a jug marked in teaspoons alongside a recipe or container printed in US gallons is the classic case, and it is why the two labels rarely agree to the eye.
The conversion factor used here is 0.001302083 gal per teaspoon (9 significant digits as shown). Kept to seven figures it covers professional measurement; if you round it to two or three decimals for a spreadsheet, the error scales with the input — at a value of 1,000 tsp a factor rounded to three decimals can be off by a measurable amount. The reverse direction uses 768 tsp per gal, the exact reciprocal, so a round trip through both pages returns your original number.
Teaspoons to US gallons formula
Use this formula to convert any teaspoon value to US gallons:
Worked example: 100 tsp × 0.001302083 = 0.1302083 gal.
Teaspoons to US gallons conversion table
| Teaspoons (tsp) | US gallons (gal) |
|---|---|
| 0.5 tsp | 0.0006510417 gal |
| 1 tsp | 0.001302083 gal |
| 2 tsp | 0.002604167 gal |
| 5 tsp | 0.006510417 gal |
| 10 tsp | 0.01302083 gal |
| 20 tsp | 0.02604167 gal |
| 50 tsp | 0.06510417 gal |
| 100 tsp | 0.1302083 gal |
| 500 tsp | 0.6510417 gal |
| 1000 tsp | 1.302083 gal |
How to convert teaspoons to US gallons
Multiply the teaspoon value by 0.001302083 to get the equivalent in US gallons. This single factor works for every value in the table above and for anything else you need — there is no per-value adjustment, which is why a conversion table and a calculator always agree.
If you need the opposite direction, use the US gallons to Teaspoons converter instead of dividing by hand; both pages use the same source factors. For every other tsp conversion in one place, see the tsp conversion hub.
Frequently asked questions
How many US gallons are in 1 teaspoon?
1 teaspoon = 0.001302083 gal.
What is 100 teaspoons in US gallons?
100 tsp = 0.1302083 gal.
Is converting teaspoons to US gallons the same as US gallons to teaspoons?
No — the direction changes the multiplier. The reverse conversion (1 gal = 768 tsp) is on the US gallons to Teaspoons page.
Related conversions
Try the ConvBolt Unit Converter for any other volume unit, browse the Volume conversions, or read our conversion guides.