US Gallons to Teaspoons Converter
gal → tsp · 🧪 Volume
1 US Gallons = 767.99989 Teaspoons
How to convert US Gallons to Teaspoons
To convert US Gallons to Teaspoons, multiply the value in US Gallons by 767.99989. For example, 5 gal = 3,839.999 tsp.
Converting US Gallons (gal) to Teaspoons (tsp) is a frequent need, and the exact relationship is 1 gal = 767.99989 tsp. Whether you're working on a project, checking a specification, or just curious, the calculator above gives you the answer instantly for any value you enter.
Volume conversions are essential in the kitchen, in science, and in any situation involving liquids or capacity. They're also one of the trickiest areas because US and UK (imperial) measurements share names but differ in size.
Understanding US Gallons and Teaspoons
A US gallon (3.785 liters) is noticeably smaller than a UK gallon (4.546 liters) — about 20% less. The same applies to pints, quarts, and fluid ounces. Cups, tablespoons, and teaspoons are the backbone of recipe measurement, while liters and milliliters dominate scientific and most international contexts. This US/UK split is the single biggest source of error in volume conversion.
How accurate is this conversion?
Volume conversions here use the internationally accepted definitions: the US gallon is exactly 3.785411784 liters and the imperial gallon is exactly 4.54609 liters. Always confirm which system a recipe or specification uses before converting.
All conversion factors on ClearUnits are based on internationally recognised standards (the International System of Units, SI, and official definitions). Factors are reviewed for accuracy and the calculator uses full-precision values, rounding only the displayed result.
Quick reference: common US Gallons to Teaspoons values
The most frequently searched conversions are 1 US Gallons = 767.99989 Teaspoons, 5 US Gallons = 3,839.999 Teaspoons, 10 US Gallons = 7,679.999 Teaspoons, and 100 US Gallons = 76,799.989 Teaspoons. The full table further down covers every common value, and the calculator handles any number you need in between.
Pro tip: When following a recipe, check the source country first. A British recipe calling for a pint of liquid means 568 mL, while an American pint is only 473 mL — enough difference to affect the result of baking and sauces.
US Gallons to Teaspoons — Conversion Table
| US Gallons (gal) | Teaspoons (tsp) |
|---|---|
| 0.1 gal | 76.799989 tsp |
| 0.25 gal | 191.99997 tsp |
| 0.5 gal | 383.99994 tsp |
| 1 gal | 767.99989 tsp |
| 2 gal | 1,536 tsp |
| 5 gal | 3,839.999 tsp |
| 10 gal | 7,679.999 tsp |
| 25 gal | 19,199.997 tsp |
| 50 gal | 38,399.994 tsp |
| 100 gal | 76,799.989 tsp |
| 250 gal | 191,999.97 tsp |
| 500 gal | 383,999.94 tsp |
| 1000 gal | 767,999.89 tsp |